Mercury Weather3.8.1 - App Store
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Publisher Description
"It's a weather app. How much is there to say?"
- Malin from Triple Glazed Studios' crack product marketing team
TOP FEATURES
- Beautiful weather charts
- Detailed daily forecast
- Trip Forecast
- Incredibly accurate rain forecast
- Hurricane and storm tracking
- Tide forecasts
- Weather notifications
- Radar map
- Simple yet powerful Apple Watch app
- Easy to glance home screen and lock screen widgets
- Weather normals
Privacy policy: https://tripleglazedstudios.com/mercury/privacy
Terms of use: https://tripleglazedstudios.com/mercury/terms
Version History This update unfolds Mercury on iPhone Duo. Plus, a 24-hour look back in the hourly forecast.
iPhone Duo
Mercury is ready for iPhone Duo. Unfold it to see your locations next to the forecast, and fold it for the familiar iPhone layout. You can also open two Mercury windows side by side to compare the weather in two places.
HOURLY HISTORY
Wondering how warm it got this afternoon or when the rain actually stopped? Pull the hourly forecast back past the current hour and release to see the past 24 hours. Tap Now to jump back to the forecast.
FIXES
Temperature lines in compact widgets and Apple Watch complications now line up correctly in right-to-left languages.
Kai & Malin 3.8.1 5d ago This update unfolds Mercury on iPhone Duo. Plus, a 24-hour look back in the hourly forecast.
iPhone Duo
Mercury is ready for iPhone Duo. Unfold it to see your locations next to the forecast, and fold it for the familiar iPhone layout. You can also open two Mercury windows side by side to compare the weather in two places.
HOURLY HISTORY
Wondering how warm it got this afternoon or when the rain actually stopped? Pull the hourly forecast back past the current hour and release to see the past 24 hours. Tap Now to jump back to the forecast.
FIXES
Temperature lines in compact widgets and Apple Watch complications now line up correctly in right-to-left languages.
Kai & Malin 3.8 6d ago Mercury is ready for iOS 27! This is a big one: deeper Siri integration and new extra-large widgets. Plus, a more flexible Trip Forecast, new Tide widgets, and Monthly Averages comparisons to help plan your next adventure.
SIRI INTEGRATION
Ask Siri about upcoming or past trips, or add a new trip destination to Mercury. Natural-language requests and conversational follow-ups make it easier to plan your travels.
EXTRA-LARGE WIDGETS
On iOS 27, a new extra-large widget brings current conditions, upcoming rain, and hourly and daily forecasts together in one place.
FLEXIBLE LAYOUTS
The user interface now adapts as you resize its window in iPhone Mirroring.
TRIP FORECAST 2.0
Spend the morning in one place and the afternoon somewhere else, or plan a multi-stop road trip. Add precise trip times and multiple stops in a single day, with the weather for each destination appearing in your daily and hourly forecasts, including widgets and Apple Watch.
TIDE WIDGETS
Keep an eye on the tides from your Home Screen or Lock Screen. Choose a tide station to see the current tide height and upcoming highs and lows. The Tide widget also supports the new extra-large size on iOS 27. Available for supported coastal areas in the U.S. and Canada.
COMPARE MONTHLY AVERAGES
Compare temperatures, rainfall, sunshine, and daylight between two places throughout the year. See how a destination compares with home before planning your next trip.
OTHER IMPROVEMENTS
Clearer weather warning colors and more reliable forecast refreshes and radar loading.
Kai & Malin 3.7.2 Sep 22 Mercury is ready for iOS 27! This is a big one: deeper Siri integration and new extra-large widgets. Plus, a more flexible Trip Forecast, new Tide widgets, and Monthly Averages comparisons to help plan your next adventure.
SIRI INTEGRATION
Ask Siri about upcoming or past trips, or add a new trip destination to Mercury. Natural-language requests and conversational follow-ups make it easier to plan your travels.
EXTRA-LARGE WIDGETS
On iOS 27, a new extra-large widget brings current conditions, upcoming rain, and hourly and daily forecasts together in one place.
FLEXIBLE LAYOUTS
The user interface now adapts as you resize its window in iPhone Mirroring.
TRIP FORECAST 2.0
Spend the morning in one place and the afternoon somewhere else, or plan a multi-stop road trip. Add precise trip times and multiple stops in a single day, with the weather for each destination appearing in your daily and hourly forecasts, including widgets and Apple Watch.
TIDE WIDGETS
Keep an eye on the tides from your Home Screen or Lock Screen. Choose a tide station to see the current tide height and upcoming highs and lows. The Tide widget also supports the new extra-large size on iOS 27. Available for supported coastal areas in the U.S. and Canada.
COMPARE MONTHLY AVERAGES
Compare temperatures, rainfall, sunshine, and daylight between two places throughout the year. See how a destination compares with home before planning your next trip.
OTHER IMPROVEMENTS
Clearer weather warning colors and more reliable forecast refreshes and radar loading.
Kai & Malin 3.7.1 Sep 21 Mercury is ready for iOS 27! This is a big one: deeper Siri integration and new extra-large widgets. Plus, a more flexible Trip Forecast, new Tide widgets, and Monthly Averages comparisons to help plan your next adventure.
SIRI INTEGRATION
Ask Siri about upcoming or past trips, or add a new trip destination to Mercury. Natural-language requests and conversational follow-ups make it easier to plan your travels.
EXTRA-LARGE WIDGETS
On iOS 27, a new extra-large widget brings current conditions, upcoming rain, and hourly and daily forecasts together in one place.
FLEXIBLE LAYOUTS
The user interface now adapts as you resize its window in iPhone Mirroring.
TRIP FORECAST 2.0
Spend the morning in one place and the afternoon somewhere else, or plan a multi-stop road trip. Add precise trip times and multiple stops in a single day, with the weather for each destination appearing in your daily and hourly forecasts, including widgets and Apple Watch.
TIDE WIDGETS
Keep an eye on the tides from your Home Screen or Lock Screen. Choose a tide station to see the current tide height and upcoming highs and lows. The Tide widget also supports the new extra-large size on iOS 27. Available for supported coastal areas in the U.S. and Canada.
COMPARE MONTHLY AVERAGES
Compare temperatures, rainfall, sunshine, and daylight between two places throughout the year. See how a destination compares with home before planning your next trip.
OTHER IMPROVEMENTS
Clearer weather warning colors and more reliable forecast refreshes and radar loading.
Kai & Malin 3.7 Sep 11 This update brings more detailed wildfire coverage and a couple of fixes.
WILDFIRE MAP IMPROVEMENTS
California fire maps now include CAL FIRE incidents and boundaries for more complete coverage. British Columbia fires have clearer names and links to official details.
FIXES
Fixed an issue where the Daily widget could get stuck after editing its configuration. Also fixed chart labels overlapping in large widgets on iPad mini and improved forecast reliability in Australia.
Kai & Malin 3.6.3 Aug 26 This update brings more detailed wildfire coverage and a couple of fixes.
WILDFIRE MAP IMPROVEMENTS
California fire maps now include CAL FIRE incidents and boundaries for more complete coverage. British Columbia fires have clearer names and links to official details.
FIXES
Fixed chart labels overlapping in large widgets on iPad mini and improved forecast reliability in Australia.
Kai & Malin 3.6.2 Aug 23 This update adds a new Sun Graph, more flexible forecast widgets, local temperatures for travel, and a broad round of accessibility and reliability improvements.
SUN GRAPH
See how sunrise, sunset, and daylight length change throughout the year in Monthly Averages.
MORE WIDGET CONFIGURATIONS
New 5-hour and 5-day layouts give you more ways to view the forecast, with an every-other-hour option for supported widgets.
TRAVEL TEMPERATURES
When traveling, hourly details already show temperatures in both your preferred unit and the local unit. Now daily forecasts and Apple Watch do too.
ACCESSIBILITY
Charts are easier to use with VoiceOver and larger text.
OTHER IMPROVEMENTS
Fire maps, storm tracking, and alerts load faster, widget refreshes are more reliable, and map navigation is smoother.
Kai & Malin 3.6.1 Aug 4 This update adds a new Sun Graph, more flexible forecast widgets, local temperatures for travel, and a broad round of accessibility and reliability improvements.
SUN GRAPH
See how sunrise, sunset, and daylight length change throughout the year in Monthly Averages.
MORE WIDGET CONFIGURATIONS
New 5-hour and 5-day layouts give you more ways to view the forecast, with an every-other-hour option for supported widgets.
TRAVEL TEMPERATURES
When traveling, hourly details already show temperatures in both your preferred unit and the local unit. Now daily forecasts and Apple Watch do too.
ACCESSIBILITY
Charts are easier to use with VoiceOver and larger text.
OTHER IMPROVEMENTS
Fire maps, storm tracking, and alerts load faster, widget refreshes are more reliable, and map navigation is smoother.
Kai & Malin 3.6 Jul 26 This update fixes several chart issues on iOS 27, resolves a couple of widget issues, improves overall performance, refines the UV and AQI detail charts, and fixes a few localization inconsistencies.
Kai & Malin 3.5.3 Jun 20 This update fixes a bunch of chart issues on iOS 27, improves overall performance, refines the UV and AQI extra detail charts, and fixes a few localization inconsistencies.
Kai & Malin 3.5.2 Jun 17 This update adds new fire, air quality, UV, and temperature map layers, hourly pressure and visibility details, and favorite location switching on Apple Watch.
FIRE MAPS & ENVIRONMENTAL LAYERS
Mercury’s weather maps now include fire activity, air quality, UV, and temperature layers. Fire Maps show active fires, fire size, affected area, and containment level, making it easier to understand nearby environmental conditions at a glance.
HOURLY FORECAST DETAILS
Hourly details now include pressure and visibility for each hour, making it easier to compare changing conditions throughout the day.
APPLE WATCH LOCATION SWITCHING
Saved locations are now available directly on Apple Watch, so you can quickly check forecasts for your favorite locations, home, and upcoming trips.
Kai & Malin 3.5.1 Jun 2 This update adds new fire, air quality, UV, and temperature map layers, hourly pressure and visibility details, and favorite location switching on Apple Watch.
FIRE MAPS & ENVIRONMENTAL LAYERS
Mercury’s weather maps now include fire activity, air quality, UV, and temperature layers. Fire Maps show active fires, fire size, affected area, and containment level, making it easier to understand nearby environmental conditions at a glance.
HOURLY FORECAST DETAILS
Hourly details now include pressure and visibility for each hour, making it easier to compare changing conditions throughout the day.
APPLE WATCH LOCATION SWITCHING
Saved locations are now available directly on Apple Watch, so you can quickly check forecasts for your favorite locations, home, and upcoming trips.
Kai & Malin 3.5 May 26 This update improves the cloud coverage layer with more historical data and a longer forecast horizon.
Kai & Malin 3.4.9 May 15 This update keeps radar playback running correctly while scrubbing the timeline, fixes a rare crash when saved locations or trips change, and includes a few small localization fixes.
Kai & Malin 3.4.8 Apr 29 This update improves trip forecast refresh speed after adding or editing a trip, fixes a daily chart display issue when sharing screenshots on iOS 26.2+, and includes a couple of small Apple Watch improvements, including cleaner trip headers and faster premium unlock after purchasing on another device.
Kai & Malin 3.4.7 Apr 22 This update improves radar and storm widgets, makes tide fetches faster, and includes a few recent reliability fixes.
RADAR & STORM WIDGETS
Radar and storm widgets now open to the map view with better zoom alignment.
PERFORMANCE & FIXES
Tide fetches are faster, and we fixed a rare confetti crash plus a shadow clipping issue on iOS 26.
Kai & Malin 3.4.6 Apr 2 This update adds 10 more languages, improves right-to-left support, and includes a round of sharing, export, and reliability fixes.
MORE LANGUAGES
Mercury is now available in Arabic, Traditional Chinese, Korean, Portuguese, Turkish (thank you, Murat!), Finnish, Italian, Dutch, Norwegian, and Hebrew.
RIGHT-TO-LEFT SUPPORT
Added better right-to-left layout and text handling for Hebrew and Arabic.
MAP & SHARING IMPROVEMENTS
Map exports now match the preview more closely, timeline prefetching is smarter, and sharing and radar interactions are more reliable.
RELIABILITY
Improved locale refreshes and polished translations throughout the app.
Kai & Malin 3.4.5 Mar 9 This update adds 10 more languages, improves right-to-left support, and includes a round of sharing, export, and reliability fixes.
MORE LANGUAGES
Mercury is now available in Arabic, Traditional Chinese, Korean, Portuguese, Turkish, Finnish, Italian, Dutch, Norwegian, and Hebrew.
RIGHT-TO-LEFT SUPPORT
Added better right-to-left layout and text handling for Hebrew and Arabic.
MAP & SHARING IMPROVEMENTS
Map exports now match the preview more closely, timeline prefetching is smarter, and sharing and radar interactions are more reliable.
RELIABILITY
Improved locale refreshes and polished translations throughout the app.
Kai & Malin 3.4.4 Mar 6 This update adds 10 more languages, improves right-to-left support, and includes a round of sharing, export, and reliability fixes.
MORE LANGUAGES
Mercury is now available in Arabic, Traditional Chinese, Korean, Portuguese, Turkish, Finnish, Italian, Dutch, Norwegian, and Hebrew.
RIGHT-TO-LEFT SUPPORT
Added better right-to-left layout and text handling for Hebrew and Arabic.
MAP & SHARING IMPROVEMENTS
Map exports now match the preview more closely, timeline prefetching is smarter, and sharing and radar interactions are more reliable.
RELIABILITY
Improved locale refreshes and polished translations throughout the app.
Kai & Malin 3.4.3 Mar 6 This update improves map sharing, adds a cloud coverage forecast to the weather map, adds Japanese localization, and includes a handful of fixes.
MAP SHARING IMPROVEMENTS
Sharing hurricane, storm, and radar maps is faster and more reliable, with sharper exports and a new storm‑only option.
CLOUD COVERAGE FORECAST
The weather map now includes a cloud coverage forecast layer.
JAPANESE LOCALIZATION
Mercury is now available in Japanese.
FIXES
Improved tide fetch reliability and fixed a rare hang when switching weather sources, plus a few small widget and localization fixes.
Kai & Malin 3.4.2 Feb 24 This update improves map sharing, adds a cloud coverage forecast to the weather map, adds Japanese localization, and includes a handful of fixes.
MAP SHARING IMPROVEMENTS
Sharing hurricane, storm, and radar maps is faster and more reliable, with sharper exports and a new storm‑only option.
CLOUD COVERAGE FORECAST
The weather map now includes a cloud coverage forecast layer.
JAPANESE LOCALIZATION
Mercury is now available in Japanese.
FIXES
Improved tide fetch reliability and fixed a rare hang when switching weather sources, plus a few small widget and localization fixes.
Kai & Malin 3.4.1 Feb 21 This update improves map sharing, adds a cloud coverage forecast to the weather map, adds Japanese localization, and includes a handful of fixes.
MAP SHARING IMPROVEMENTS
Sharing hurricane, storm, and radar maps is faster and more reliable, with sharper exports and a new storm‑only option.
CLOUD COVERAGE FORECAST
The weather map now includes a cloud coverage forecast layer.
JAPANESE LOCALIZATION
Mercury is now available in Japanese.
FIXES
Improved tide fetch reliability and fixed a rare hang when switching weather sources, plus a few small widget and localization fixes.
Kai & Malin 3.4 Feb 19 This update introduces a new Screenshot Composer for sharing hurricane and radar maps.
SHARING HURRICANE AND STORM MAPS
Share a customizable image or GIF of the weather map. Choose what to include, like the rain radar, upcoming hurricanes, and favorite location pins.
Kai & Malin 3.3 Feb 7 This update adds Shortcuts support for trips, improves snow charts, and fixes a Screenshot Composer chart issue.
SHORTCUTS
Added actions to get upcoming trips, view past trips, and add new trips.
CHARTS
Adjusted snow charts and improved chart scales for better readability.
SCREENSHOT FIXES
Fixed missing daily chart details in the Screenshot Composer on iOS 26.
Kai & Malin 3.2.1 Jan 28
About Mercury Weather
The company that develops Mercury Weather is Triple Glazed Studios LLC. The latest version released by its developer is 3.8.1.
To install Mercury Weather on your iOS device, just click the green Continue To App button above to start the installation process. The app is listed on our website since 2026-10-15 and was downloaded 0 times. We have already checked if the download link is safe, however for your own protection we recommend that you scan the downloaded app with your antivirus. Your antivirus may detect the Mercury Weather as malware if the download link is broken.
How to install Mercury Weather on your iOS device:
- Click on the Continue To App button on our website. This will redirect you to the App Store.
- Once the Mercury Weather is shown in the iTunes listing of your iOS device, you can start its download and installation. Tap on the GET button to the right of the app to start downloading it.
- If you are not logged-in the iOS appstore app, you'll be prompted for your your Apple ID and/or password.
- After Mercury Weather is downloaded, you'll see an INSTALL button to the right. Tap on it to start the actual installation of the iOS app.
- Once installation is finished you can tap on the OPEN button to start it. Its icon will also be added to your device home screen.
Program Details
System requirements
Download information
Pricing
Version History
version 3.8.1
posted on 2026-10-15
Version History This update unfolds Mercury on iPhone Duo. Plus, a 24-hour look back in the hourly forecast.
iPhone Duo
Mercury is ready for iPhone Duo. Unfold it to see your locations next to the forecast, and fold it for the familiar iPhone layout. You can also open two Mercury windows side by side to compare the weather in two places.
HOURLY HISTORY
Wondering how warm it got this afternoon or when the rain actually stopped? Pull the hourly forecast back past the current hour and release to see the past 24 hours. Tap Now to jump back to the forecast.
FIXES
Temperature lines in compact widgets and Apple Watch complications now line up correctly in right-to-left languages.
Kai & Malin 3.8.1 5d ago This update unfolds Mercury on iPhone Duo. Plus, a 24-hour look back in the hourly forecast.
iPhone Duo
Mercury is ready for iPhone Duo. Unfold it to see your locations next to the forecast, and fold it for the familiar iPhone layout. You can also open two Mercury windows side by side to compare the weather in two places.
HOURLY HISTORY
Wondering how warm it got this afternoon or when the rain actually stopped? Pull the hourly forecast back past the current hour and release to see the past 24 hours. Tap Now to jump back to the forecast.
FIXES
Temperature lines in compact widgets and Apple Watch complications now line up correctly in right-to-left languages.
Kai & Malin 3.8 6d ago Mercury is ready for iOS 27! This is a big one: deeper Siri integration and new extra-large widgets. Plus, a more flexible Trip Forecast, new Tide widgets, and Monthly Averages comparisons to help plan your next adventure.
SIRI INTEGRATION
Ask Siri about upcoming or past trips, or add a new trip destination to Mercury. Natural-language requests and conversational follow-ups make it easier to plan your travels.
EXTRA-LARGE WIDGETS
On iOS 27, a new extra-large widget brings current conditions, upcoming rain, and hourly and daily forecasts together in one place.
FLEXIBLE LAYOUTS
The user interface now adapts as you resize its window in iPhone Mirroring.
TRIP FORECAST 2.0
Spend the morning in one place and the afternoon somewhere else, or plan a multi-stop road trip. Add precise trip times and multiple stops in a single day, with the weather for each destination appearing in your daily and hourly forecasts, including widgets and Apple Watch.
TIDE WIDGETS
Keep an eye on the tides from your Home Screen or Lock Screen. Choose a tide station to see the current tide height and upcoming highs and lows. The Tide widget also supports the new extra-large size on iOS 27. Available for supported coastal areas in the U.S. and Canada.
COMPARE MONTHLY AVERAGES
Compare temperatures, rainfall, sunshine, and daylight between two places throughout the year. See how a destination compares with home before planning your next trip.
OTHER IMPROVEMENTS
Clearer weather warning colors and more reliable forecast refreshes and radar loading.
Kai & Malin 3.7.2 Sep 22 Mercury is ready for iOS 27! This is a big one: deeper Siri integration and new extra-large widgets. Plus, a more flexible Trip Forecast, new Tide widgets, and Monthly Averages comparisons to help plan your next adventure.
SIRI INTEGRATION
Ask Siri about upcoming or past trips, or add a new trip destination to Mercury. Natural-language requests and conversational follow-ups make it easier to plan your travels.
EXTRA-LARGE WIDGETS
On iOS 27, a new extra-large widget brings current conditions, upcoming rain, and hourly and daily forecasts together in one place.
FLEXIBLE LAYOUTS
The user interface now adapts as you resize its window in iPhone Mirroring.
TRIP FORECAST 2.0
Spend the morning in one place and the afternoon somewhere else, or plan a multi-stop road trip. Add precise trip times and multiple stops in a single day, with the weather for each destination appearing in your daily and hourly forecasts, including widgets and Apple Watch.
TIDE WIDGETS
Keep an eye on the tides from your Home Screen or Lock Screen. Choose a tide station to see the current tide height and upcoming highs and lows. The Tide widget also supports the new extra-large size on iOS 27. Available for supported coastal areas in the U.S. and Canada.
COMPARE MONTHLY AVERAGES
Compare temperatures, rainfall, sunshine, and daylight between two places throughout the year. See how a destination compares with home before planning your next trip.
OTHER IMPROVEMENTS
Clearer weather warning colors and more reliable forecast refreshes and radar loading.
Kai & Malin 3.7.1 Sep 21 Mercury is ready for iOS 27! This is a big one: deeper Siri integration and new extra-large widgets. Plus, a more flexible Trip Forecast, new Tide widgets, and Monthly Averages comparisons to help plan your next adventure.
SIRI INTEGRATION
Ask Siri about upcoming or past trips, or add a new trip destination to Mercury. Natural-language requests and conversational follow-ups make it easier to plan your travels.
EXTRA-LARGE WIDGETS
On iOS 27, a new extra-large widget brings current conditions, upcoming rain, and hourly and daily forecasts together in one place.
FLEXIBLE LAYOUTS
The user interface now adapts as you resize its window in iPhone Mirroring.
TRIP FORECAST 2.0
Spend the morning in one place and the afternoon somewhere else, or plan a multi-stop road trip. Add precise trip times and multiple stops in a single day, with the weather for each destination appearing in your daily and hourly forecasts, including widgets and Apple Watch.
TIDE WIDGETS
Keep an eye on the tides from your Home Screen or Lock Screen. Choose a tide station to see the current tide height and upcoming highs and lows. The Tide widget also supports the new extra-large size on iOS 27. Available for supported coastal areas in the U.S. and Canada.
COMPARE MONTHLY AVERAGES
Compare temperatures, rainfall, sunshine, and daylight between two places throughout the year. See how a destination compares with home before planning your next trip.
OTHER IMPROVEMENTS
Clearer weather warning colors and more reliable forecast refreshes and radar loading.
Kai & Malin 3.7 Sep 11 This update brings more detailed wildfire coverage and a couple of fixes.
WILDFIRE MAP IMPROVEMENTS
California fire maps now include CAL FIRE incidents and boundaries for more complete coverage. British Columbia fires have clearer names and links to official details.
FIXES
Fixed an issue where the Daily widget could get stuck after editing its configuration. Also fixed chart labels overlapping in large widgets on iPad mini and improved forecast reliability in Australia.
Kai & Malin 3.6.3 Aug 26 This update brings more detailed wildfire coverage and a couple of fixes.
WILDFIRE MAP IMPROVEMENTS
California fire maps now include CAL FIRE incidents and boundaries for more complete coverage. British Columbia fires have clearer names and links to official details.
FIXES
Fixed chart labels overlapping in large widgets on iPad mini and improved forecast reliability in Australia.
Kai & Malin 3.6.2 Aug 23 This update adds a new Sun Graph, more flexible forecast widgets, local temperatures for travel, and a broad round of accessibility and reliability improvements.
SUN GRAPH
See how sunrise, sunset, and daylight length change throughout the year in Monthly Averages.
MORE WIDGET CONFIGURATIONS
New 5-hour and 5-day layouts give you more ways to view the forecast, with an every-other-hour option for supported widgets.
TRAVEL TEMPERATURES
When traveling, hourly details already show temperatures in both your preferred unit and the local unit. Now daily forecasts and Apple Watch do too.
ACCESSIBILITY
Charts are easier to use with VoiceOver and larger text.
OTHER IMPROVEMENTS
Fire maps, storm tracking, and alerts load faster, widget refreshes are more reliable, and map navigation is smoother.
Kai & Malin 3.6.1 Aug 4 This update adds a new Sun Graph, more flexible forecast widgets, local temperatures for travel, and a broad round of accessibility and reliability improvements.
SUN GRAPH
See how sunrise, sunset, and daylight length change throughout the year in Monthly Averages.
MORE WIDGET CONFIGURATIONS
New 5-hour and 5-day layouts give you more ways to view the forecast, with an every-other-hour option for supported widgets.
TRAVEL TEMPERATURES
When traveling, hourly details already show temperatures in both your preferred unit and the local unit. Now daily forecasts and Apple Watch do too.
ACCESSIBILITY
Charts are easier to use with VoiceOver and larger text.
OTHER IMPROVEMENTS
Fire maps, storm tracking, and alerts load faster, widget refreshes are more reliable, and map navigation is smoother.
Kai & Malin 3.6 Jul 26 This update fixes several chart issues on iOS 27, resolves a couple of widget issues, improves overall performance, refines the UV and AQI detail charts, and fixes a few localization inconsistencies.
Kai & Malin 3.5.3 Jun 20 This update fixes a bunch of chart issues on iOS 27, improves overall performance, refines the UV and AQI extra detail charts, and fixes a few localization inconsistencies.
Kai & Malin 3.5.2 Jun 17 This update adds new fire, air quality, UV, and temperature map layers, hourly pressure and visibility details, and favorite location switching on Apple Watch.
FIRE MAPS & ENVIRONMENTAL LAYERS
Mercury’s weather maps now include fire activity, air quality, UV, and temperature layers. Fire Maps show active fires, fire size, affected area, and containment level, making it easier to understand nearby environmental conditions at a glance.
HOURLY FORECAST DETAILS
Hourly details now include pressure and visibility for each hour, making it easier to compare changing conditions throughout the day.
APPLE WATCH LOCATION SWITCHING
Saved locations are now available directly on Apple Watch, so you can quickly check forecasts for your favorite locations, home, and upcoming trips.
Kai & Malin 3.5.1 Jun 2 This update adds new fire, air quality, UV, and temperature map layers, hourly pressure and visibility details, and favorite location switching on Apple Watch.
FIRE MAPS & ENVIRONMENTAL LAYERS
Mercury’s weather maps now include fire activity, air quality, UV, and temperature layers. Fire Maps show active fires, fire size, affected area, and containment level, making it easier to understand nearby environmental conditions at a glance.
HOURLY FORECAST DETAILS
Hourly details now include pressure and visibility for each hour, making it easier to compare changing conditions throughout the day.
APPLE WATCH LOCATION SWITCHING
Saved locations are now available directly on Apple Watch, so you can quickly check forecasts for your favorite locations, home, and upcoming trips.
Kai & Malin 3.5 May 26 This update improves the cloud coverage layer with more historical data and a longer forecast horizon.
Kai & Malin 3.4.9 May 15 This update keeps radar playback running correctly while scrubbing the timeline, fixes a rare crash when saved locations or trips change, and includes a few small localization fixes.
Kai & Malin 3.4.8 Apr 29 This update improves trip forecast refresh speed after adding or editing a trip, fixes a daily chart display issue when sharing screenshots on iOS 26.2+, and includes a couple of small Apple Watch improvements, including cleaner trip headers and faster premium unlock after purchasing on another device.
Kai & Malin 3.4.7 Apr 22 This update improves radar and storm widgets, makes tide fetches faster, and includes a few recent reliability fixes.
RADAR & STORM WIDGETS
Radar and storm widgets now open to the map view with better zoom alignment.
PERFORMANCE & FIXES
Tide fetches are faster, and we fixed a rare confetti crash plus a shadow clipping issue on iOS 26.
Kai & Malin 3.4.6 Apr 2 This update adds 10 more languages, improves right-to-left support, and includes a round of sharing, export, and reliability fixes.
MORE LANGUAGES
Mercury is now available in Arabic, Traditional Chinese, Korean, Portuguese, Turkish (thank you, Murat!), Finnish, Italian, Dutch, Norwegian, and Hebrew.
RIGHT-TO-LEFT SUPPORT
Added better right-to-left layout and text handling for Hebrew and Arabic.
MAP & SHARING IMPROVEMENTS
Map exports now match the preview more closely, timeline prefetching is smarter, and sharing and radar interactions are more reliable.
RELIABILITY
Improved locale refreshes and polished translations throughout the app.
Kai & Malin 3.4.5 Mar 9 This update adds 10 more languages, improves right-to-left support, and includes a round of sharing, export, and reliability fixes.
MORE LANGUAGES
Mercury is now available in Arabic, Traditional Chinese, Korean, Portuguese, Turkish, Finnish, Italian, Dutch, Norwegian, and Hebrew.
RIGHT-TO-LEFT SUPPORT
Added better right-to-left layout and text handling for Hebrew and Arabic.
MAP & SHARING IMPROVEMENTS
Map exports now match the preview more closely, timeline prefetching is smarter, and sharing and radar interactions are more reliable.
RELIABILITY
Improved locale refreshes and polished translations throughout the app.
Kai & Malin 3.4.4 Mar 6 This update adds 10 more languages, improves right-to-left support, and includes a round of sharing, export, and reliability fixes.
MORE LANGUAGES
Mercury is now available in Arabic, Traditional Chinese, Korean, Portuguese, Turkish, Finnish, Italian, Dutch, Norwegian, and Hebrew.
RIGHT-TO-LEFT SUPPORT
Added better right-to-left layout and text handling for Hebrew and Arabic.
MAP & SHARING IMPROVEMENTS
Map exports now match the preview more closely, timeline prefetching is smarter, and sharing and radar interactions are more reliable.
RELIABILITY
Improved locale refreshes and polished translations throughout the app.
Kai & Malin 3.4.3 Mar 6 This update improves map sharing, adds a cloud coverage forecast to the weather map, adds Japanese localization, and includes a handful of fixes.
MAP SHARING IMPROVEMENTS
Sharing hurricane, storm, and radar maps is faster and more reliable, with sharper exports and a new storm‑only option.
CLOUD COVERAGE FORECAST
The weather map now includes a cloud coverage forecast layer.
JAPANESE LOCALIZATION
Mercury is now available in Japanese.
FIXES
Improved tide fetch reliability and fixed a rare hang when switching weather sources, plus a few small widget and localization fixes.
Kai & Malin 3.4.2 Feb 24 This update improves map sharing, adds a cloud coverage forecast to the weather map, adds Japanese localization, and includes a handful of fixes.
MAP SHARING IMPROVEMENTS
Sharing hurricane, storm, and radar maps is faster and more reliable, with sharper exports and a new storm‑only option.
CLOUD COVERAGE FORECAST
The weather map now includes a cloud coverage forecast layer.
JAPANESE LOCALIZATION
Mercury is now available in Japanese.
FIXES
Improved tide fetch reliability and fixed a rare hang when switching weather sources, plus a few small widget and localization fixes.
Kai & Malin 3.4.1 Feb 21 This update improves map sharing, adds a cloud coverage forecast to the weather map, adds Japanese localization, and includes a handful of fixes.
MAP SHARING IMPROVEMENTS
Sharing hurricane, storm, and radar maps is faster and more reliable, with sharper exports and a new storm‑only option.
CLOUD COVERAGE FORECAST
The weather map now includes a cloud coverage forecast layer.
JAPANESE LOCALIZATION
Mercury is now available in Japanese.
FIXES
Improved tide fetch reliability and fixed a rare hang when switching weather sources, plus a few small widget and localization fixes.
Kai & Malin 3.4 Feb 19 This update introduces a new Screenshot Composer for sharing hurricane and radar maps.
SHARING HURRICANE AND STORM MAPS
Share a customizable image or GIF of the weather map. Choose what to include, like the rain radar, upcoming hurricanes, and favorite location pins.
Kai & Malin 3.3 Feb 7 This update adds Shortcuts support for trips, improves snow charts, and fixes a Screenshot Composer chart issue.
SHORTCUTS
Added actions to get upcoming trips, view past trips, and add new trips.
CHARTS
Adjusted snow charts and improved chart scales for better readability.
SCREENSHOT FIXES
Fixed missing daily chart details in the Screenshot Composer on iOS 26.
Kai & Malin 3.2.1 Jan 28
version 3.7.2
posted on 2026-10-08
Version History Mercury is ready for iOS 27! This is a big one: deeper Siri integration and new extra-large widgets. Plus, a more flexible Trip Forecast, new Tide widgets, and Monthly Averages comparisons to help plan your next adventure.
SIRI INTEGRATION
Ask Siri about upcoming or past trips, or add a new trip destination to Mercury. Natural-language requests and conversational follow-ups make it easier to plan your travels.
EXTRA-LARGE WIDGETS
On iOS 27, a new extra-large widget brings current conditions, upcoming rain, and hourly and daily forecasts together in one place.
FLEXIBLE LAYOUTS
The user interface now adapts as you resize its window in iPhone Mirroring.
TRIP FORECAST 2.0
Spend the morning in one place and the afternoon somewhere else, or plan a multi-stop road trip. Add precise trip times and multiple stops in a single day, with the weather for each destination appearing in your daily and hourly forecasts, including widgets and Apple Watch.
TIDE WIDGETS
Keep an eye on the tides from your Home Screen or Lock Screen. Choose a tide station to see the current tide height and upcoming highs and lows. The Tide widget also supports the new extra-large size on iOS 27. Available for supported coastal areas in the U.S. and Canada.
COMPARE MONTHLY AVERAGES
Compare temperatures, rainfall, sunshine, and daylight between two places throughout the year. See how a destination compares with home before planning your next trip.
OTHER IMPROVEMENTS
Clearer weather warning colors and more reliable forecast refreshes and radar loading.
Kai & Malin 3.7.2 Sep 22 Mercury is ready for iOS 27! This is a big one: deeper Siri integration and new extra-large widgets. Plus, a more flexible Trip Forecast, new Tide widgets, and Monthly Averages comparisons to help plan your next adventure.
SIRI INTEGRATION
Ask Siri about upcoming or past trips, or add a new trip destination to Mercury. Natural-language requests and conversational follow-ups make it easier to plan your travels.
EXTRA-LARGE WIDGETS
On iOS 27, a new extra-large widget brings current conditions, upcoming rain, and hourly and daily forecasts together in one place.
FLEXIBLE LAYOUTS
The user interface now adapts as you resize its window in iPhone Mirroring.
TRIP FORECAST 2.0
Spend the morning in one place and the afternoon somewhere else, or plan a multi-stop road trip. Add precise trip times and multiple stops in a single day, with the weather for each destination appearing in your daily and hourly forecasts, including widgets and Apple Watch.
TIDE WIDGETS
Keep an eye on the tides from your Home Screen or Lock Screen. Choose a tide station to see the current tide height and upcoming highs and lows. The Tide widget also supports the new extra-large size on iOS 27. Available for supported coastal areas in the U.S. and Canada.
COMPARE MONTHLY AVERAGES
Compare temperatures, rainfall, sunshine, and daylight between two places throughout the year. See how a destination compares with home before planning your next trip.
OTHER IMPROVEMENTS
Clearer weather warning colors and more reliable forecast refreshes and radar loading.
Kai & Malin 3.7.1 Sep 21 Mercury is ready for iOS 27! This is a big one: deeper Siri integration and new extra-large widgets. Plus, a more flexible Trip Forecast, new Tide widgets, and Monthly Averages comparisons to help plan your next adventure.
SIRI INTEGRATION
Ask Siri about upcoming or past trips, or add a new trip destination to Mercury. Natural-language requests and conversational follow-ups make it easier to plan your travels.
EXTRA-LARGE WIDGETS
On iOS 27, a new extra-large widget brings current conditions, upcoming rain, and hourly and daily forecasts together in one place.
FLEXIBLE LAYOUTS
The user interface now adapts as you resize its window in iPhone Mirroring.
TRIP FORECAST 2.0
Spend the morning in one place and the afternoon somewhere else, or plan a multi-stop road trip. Add precise trip times and multiple stops in a single day, with the weather for each destination appearing in your daily and hourly forecasts, including widgets and Apple Watch.
TIDE WIDGETS
Keep an eye on the tides from your Home Screen or Lock Screen. Choose a tide station to see the current tide height and upcoming highs and lows. The Tide widget also supports the new extra-large size on iOS 27. Available for supported coastal areas in the U.S. and Canada.
COMPARE MONTHLY AVERAGES
Compare temperatures, rainfall, sunshine, and daylight between two places throughout the year. See how a destination compares with home before planning your next trip.
OTHER IMPROVEMENTS
Clearer weather warning colors and more reliable forecast refreshes and radar loading.
Kai & Malin 3.7 Sep 11 This update brings more detailed wildfire coverage and a couple of fixes.
WILDFIRE MAP IMPROVEMENTS
California fire maps now include CAL FIRE incidents and boundaries for more complete coverage. British Columbia fires have clearer names and links to official details.
FIXES
Fixed an issue where the Daily widget could get stuck after editing its configuration. Also fixed chart labels overlapping in large widgets on iPad mini and improved forecast reliability in Australia.
Kai & Malin 3.6.3 Aug 26 This update brings more detailed wildfire coverage and a couple of fixes.
WILDFIRE MAP IMPROVEMENTS
California fire maps now include CAL FIRE incidents and boundaries for more complete coverage. British Columbia fires have clearer names and links to official details.
FIXES
Fixed chart labels overlapping in large widgets on iPad mini and improved forecast reliability in Australia.
Kai & Malin 3.6.2 Aug 23 This update adds a new Sun Graph, more flexible forecast widgets, local temperatures for travel, and a broad round of accessibility and reliability improvements.
SUN GRAPH
See how sunrise, sunset, and daylight length change throughout the year in Monthly Averages.
MORE WIDGET CONFIGURATIONS
New 5-hour and 5-day layouts give you more ways to view the forecast, with an every-other-hour option for supported widgets.
TRAVEL TEMPERATURES
When traveling, hourly details already show temperatures in both your preferred unit and the local unit. Now daily forecasts and Apple Watch do too.
ACCESSIBILITY
Charts are easier to use with VoiceOver and larger text.
OTHER IMPROVEMENTS
Fire maps, storm tracking, and alerts load faster, widget refreshes are more reliable, and map navigation is smoother.
Kai & Malin 3.6.1 Aug 4 This update adds a new Sun Graph, more flexible forecast widgets, local temperatures for travel, and a broad round of accessibility and reliability improvements.
SUN GRAPH
See how sunrise, sunset, and daylight length change throughout the year in Monthly Averages.
MORE WIDGET CONFIGURATIONS
New 5-hour and 5-day layouts give you more ways to view the forecast, with an every-other-hour option for supported widgets.
TRAVEL TEMPERATURES
When traveling, hourly details already show temperatures in both your preferred unit and the local unit. Now daily forecasts and Apple Watch do too.
ACCESSIBILITY
Charts are easier to use with VoiceOver and larger text.
OTHER IMPROVEMENTS
Fire maps, storm tracking, and alerts load faster, widget refreshes are more reliable, and map navigation is smoother.
Kai & Malin 3.6 Jul 26 This update fixes several chart issues on iOS 27, resolves a couple of widget issues, improves overall performance, refines the UV and AQI detail charts, and fixes a few localization inconsistencies.
Kai & Malin 3.5.3 Jun 20 This update fixes a bunch of chart issues on iOS 27, improves overall performance, refines the UV and AQI extra detail charts, and fixes a few localization inconsistencies.
Kai & Malin 3.5.2 Jun 17 This update adds new fire, air quality, UV, and temperature map layers, hourly pressure and visibility details, and favorite location switching on Apple Watch.
FIRE MAPS & ENVIRONMENTAL LAYERS
Mercury’s weather maps now include fire activity, air quality, UV, and temperature layers. Fire Maps show active fires, fire size, affected area, and containment level, making it easier to understand nearby environmental conditions at a glance.
HOURLY FORECAST DETAILS
Hourly details now include pressure and visibility for each hour, making it easier to compare changing conditions throughout the day.
APPLE WATCH LOCATION SWITCHING
Saved locations are now available directly on Apple Watch, so you can quickly check forecasts for your favorite locations, home, and upcoming trips.
Kai & Malin 3.5.1 Jun 2 This update adds new fire, air quality, UV, and temperature map layers, hourly pressure and visibility details, and favorite location switching on Apple Watch.
FIRE MAPS & ENVIRONMENTAL LAYERS
Mercury’s weather maps now include fire activity, air quality, UV, and temperature layers. Fire Maps show active fires, fire size, affected area, and containment level, making it easier to understand nearby environmental conditions at a glance.
HOURLY FORECAST DETAILS
Hourly details now include pressure and visibility for each hour, making it easier to compare changing conditions throughout the day.
APPLE WATCH LOCATION SWITCHING
Saved locations are now available directly on Apple Watch, so you can quickly check forecasts for your favorite locations, home, and upcoming trips.
Kai & Malin 3.5 May 26 This update improves the cloud coverage layer with more historical data and a longer forecast horizon.
Kai & Malin 3.4.9 May 15 This update keeps radar playback running correctly while scrubbing the timeline, fixes a rare crash when saved locations or trips change, and includes a few small localization fixes.
Kai & Malin 3.4.8 Apr 29 This update improves trip forecast refresh speed after adding or editing a trip, fixes a daily chart display issue when sharing screenshots on iOS 26.2+, and includes a couple of small Apple Watch improvements, including cleaner trip headers and faster premium unlock after purchasing on another device.
Kai & Malin 3.4.7 Apr 22 This update improves radar and storm widgets, makes tide fetches faster, and includes a few recent reliability fixes.
RADAR & STORM WIDGETS
Radar and storm widgets now open to the map view with better zoom alignment.
PERFORMANCE & FIXES
Tide fetches are faster, and we fixed a rare confetti crash plus a shadow clipping issue on iOS 26.
Kai & Malin 3.4.6 Apr 2 This update adds 10 more languages, improves right-to-left support, and includes a round of sharing, export, and reliability fixes.
MORE LANGUAGES
Mercury is now available in Arabic, Traditional Chinese, Korean, Portuguese, Turkish (thank you, Murat!), Finnish, Italian, Dutch, Norwegian, and Hebrew.
RIGHT-TO-LEFT SUPPORT
Added better right-to-left layout and text handling for Hebrew and Arabic.
MAP & SHARING IMPROVEMENTS
Map exports now match the preview more closely, timeline prefetching is smarter, and sharing and radar interactions are more reliable.
RELIABILITY
Improved locale refreshes and polished translations throughout the app.
Kai & Malin 3.4.5 Mar 9 This update adds 10 more languages, improves right-to-left support, and includes a round of sharing, export, and reliability fixes.
MORE LANGUAGES
Mercury is now available in Arabic, Traditional Chinese, Korean, Portuguese, Turkish, Finnish, Italian, Dutch, Norwegian, and Hebrew.
RIGHT-TO-LEFT SUPPORT
Added better right-to-left layout and text handling for Hebrew and Arabic.
MAP & SHARING IMPROVEMENTS
Map exports now match the preview more closely, timeline prefetching is smarter, and sharing and radar interactions are more reliable.
RELIABILITY
Improved locale refreshes and polished translations throughout the app.
Kai & Malin 3.4.4 Mar 6 This update adds 10 more languages, improves right-to-left support, and includes a round of sharing, export, and reliability fixes.
MORE LANGUAGES
Mercury is now available in Arabic, Traditional Chinese, Korean, Portuguese, Turkish, Finnish, Italian, Dutch, Norwegian, and Hebrew.
RIGHT-TO-LEFT SUPPORT
Added better right-to-left layout and text handling for Hebrew and Arabic.
MAP & SHARING IMPROVEMENTS
Map exports now match the preview more closely, timeline prefetching is smarter, and sharing and radar interactions are more reliable.
RELIABILITY
Improved locale refreshes and polished translations throughout the app.
Kai & Malin 3.4.3 Mar 6 This update improves map sharing, adds a cloud coverage forecast to the weather map, adds Japanese localization, and includes a handful of fixes.
MAP SHARING IMPROVEMENTS
Sharing hurricane, storm, and radar maps is faster and more reliable, with sharper exports and a new storm‑only option.
CLOUD COVERAGE FORECAST
The weather map now includes a cloud coverage forecast layer.
JAPANESE LOCALIZATION
Mercury is now available in Japanese.
FIXES
Improved tide fetch reliability and fixed a rare hang when switching weather sources, plus a few small widget and localization fixes.
Kai & Malin 3.4.2 Feb 24 This update improves map sharing, adds a cloud coverage forecast to the weather map, adds Japanese localization, and includes a handful of fixes.
MAP SHARING IMPROVEMENTS
Sharing hurricane, storm, and radar maps is faster and more reliable, with sharper exports and a new storm‑only option.
CLOUD COVERAGE FORECAST
The weather map now includes a cloud coverage forecast layer.
JAPANESE LOCALIZATION
Mercury is now available in Japanese.
FIXES
Improved tide fetch reliability and fixed a rare hang when switching weather sources, plus a few small widget and localization fixes.
Kai & Malin 3.4.1 Feb 21 This update improves map sharing, adds a cloud coverage forecast to the weather map, adds Japanese localization, and includes a handful of fixes.
MAP SHARING IMPROVEMENTS
Sharing hurricane, storm, and radar maps is faster and more reliable, with sharper exports and a new storm‑only option.
CLOUD COVERAGE FORECAST
The weather map now includes a cloud coverage forecast layer.
JAPANESE LOCALIZATION
Mercury is now available in Japanese.
FIXES
Improved tide fetch reliability and fixed a rare hang when switching weather sources, plus a few small widget and localization fixes.
Kai & Malin 3.4 Feb 19 This update introduces a new Screenshot Composer for sharing hurricane and radar maps.
SHARING HURRICANE AND STORM MAPS
Share a customizable image or GIF of the weather map. Choose what to include, like the rain radar, upcoming hurricanes, and favorite location pins.
Kai & Malin 3.3 Feb 7 This update adds Shortcuts support for trips, improves snow charts, and fixes a Screenshot Composer chart issue.
SHORTCUTS
Added actions to get upcoming trips, view past trips, and add new trips.
CHARTS
Adjusted snow charts and improved chart scales for better readability.
SCREENSHOT FIXES
Fixed missing daily chart details in the Screenshot Composer on iOS 26.
Kai & Malin 3.2.1 Jan 28 This update adds Shortcuts support for trips, improves snow charts, and fixes a Screenshot Composer chart issue.
SHORTCUTS
Added actions to get upcoming trips, view past trips, and add new trips.
CHARTS
Adjusted snow charts and improved chart scales for better readability.
SCREENSHOT FIXES
Fixed missing daily chart details in the Screenshot Composer on iOS 26.
Kai & Malin 3.2 Jan 26 This update improves chart performance and fixes a couple of layout issues on iOS 26.
PERFORMANCE
Hourly and daily forecast charts are smoother, especially when resizing windows on iPadOS.
FIXES
Fixed clipping when sharing current conditions on iOS 26 and a shadow clipping issue on iOS 26.2 (thanks, Manuel).
Kai & Malin 3.1.3 Jan 5
version 3.7.2
posted on 2026-09-24
Version History Mercury is ready for iOS 27! This is a big one: deeper Siri integration and new extra-large widgets. Plus, a more flexible Trip Forecast, new Tide widgets, and Monthly Averages comparisons to help plan your next adventure.
SIRI INTEGRATION
Ask Siri about upcoming or past trips, or add a new trip destination to Mercury. Natural-language requests and conversational follow-ups make it easier to plan your travels.
EXTRA-LARGE WIDGETS
On iOS 27, a new extra-large widget brings current conditions, upcoming rain, and hourly and daily forecasts together in one place.
FLEXIBLE LAYOUTS
The user interface now adapts as you resize its window in iPhone Mirroring.
TRIP FORECAST 2.0
Spend the morning in one place and the afternoon somewhere else, or plan a multi-stop road trip. Add precise trip times and multiple stops in a single day, with the weather for each destination appearing in your daily and hourly forecasts, including widgets and Apple Watch.
TIDE WIDGETS
Keep an eye on the tides from your Home Screen or Lock Screen. Choose a tide station to see the current tide height and upcoming highs and lows. The Tide widget also supports the new extra-large size on iOS 27. Available for supported coastal areas in the U.S. and Canada.
COMPARE MONTHLY AVERAGES
Compare temperatures, rainfall, sunshine, and daylight between two places throughout the year. See how a destination compares with home before planning your next trip.
OTHER IMPROVEMENTS
Clearer weather warning colors and more reliable forecast refreshes and radar loading.
Kai & Malin 3.7.2 1d ago Mercury is ready for iOS 27! This is a big one: deeper Siri integration and new extra-large widgets. Plus, a more flexible Trip Forecast, new Tide widgets, and Monthly Averages comparisons to help plan your next adventure.
SIRI INTEGRATION
Ask Siri about upcoming or past trips, or add a new trip destination to Mercury. Natural-language requests and conversational follow-ups make it easier to plan your travels.
EXTRA-LARGE WIDGETS
On iOS 27, a new extra-large widget brings current conditions, upcoming rain, and hourly and daily forecasts together in one place.
FLEXIBLE LAYOUTS
The user interface now adapts as you resize its window in iPhone Mirroring.
TRIP FORECAST 2.0
Spend the morning in one place and the afternoon somewhere else, or plan a multi-stop road trip. Add precise trip times and multiple stops in a single day, with the weather for each destination appearing in your daily and hourly forecasts, including widgets and Apple Watch.
TIDE WIDGETS
Keep an eye on the tides from your Home Screen or Lock Screen. Choose a tide station to see the current tide height and upcoming highs and lows. The Tide widget also supports the new extra-large size on iOS 27. Available for supported coastal areas in the U.S. and Canada.
COMPARE MONTHLY AVERAGES
Compare temperatures, rainfall, sunshine, and daylight between two places throughout the year. See how a destination compares with home before planning your next trip.
OTHER IMPROVEMENTS
Clearer weather warning colors and more reliable forecast refreshes and radar loading.
Kai & Malin 3.7.1 2d ago Mercury is ready for iOS 27! This is a big one: deeper Siri integration and new extra-large widgets. Plus, a more flexible Trip Forecast, new Tide widgets, and Monthly Averages comparisons to help plan your next adventure.
SIRI INTEGRATION
Ask Siri about upcoming or past trips, or add a new trip destination to Mercury. Natural-language requests and conversational follow-ups make it easier to plan your travels.
EXTRA-LARGE WIDGETS
On iOS 27, a new extra-large widget brings current conditions, upcoming rain, and hourly and daily forecasts together in one place.
FLEXIBLE LAYOUTS
The user interface now adapts as you resize its window in iPhone Mirroring.
TRIP FORECAST 2.0
Spend the morning in one place and the afternoon somewhere else, or plan a multi-stop road trip. Add precise trip times and multiple stops in a single day, with the weather for each destination appearing in your daily and hourly forecasts, including widgets and Apple Watch.
TIDE WIDGETS
Keep an eye on the tides from your Home Screen or Lock Screen. Choose a tide station to see the current tide height and upcoming highs and lows. The Tide widget also supports the new extra-large size on iOS 27. Available for supported coastal areas in the U.S. and Canada.
COMPARE MONTHLY AVERAGES
Compare temperatures, rainfall, sunshine, and daylight between two places throughout the year. See how a destination compares with home before planning your next trip.
OTHER IMPROVEMENTS
Clearer weather warning colors and more reliable forecast refreshes and radar loading.
Kai & Malin 3.7 Sep 11 This update brings more detailed wildfire coverage and a couple of fixes.
WILDFIRE MAP IMPROVEMENTS
California fire maps now include CAL FIRE incidents and boundaries for more complete coverage. British Columbia fires have clearer names and links to official details.
FIXES
Fixed an issue where the Daily widget could get stuck after editing its configuration. Also fixed chart labels overlapping in large widgets on iPad mini and improved forecast reliability in Australia.
Kai & Malin 3.6.3 Aug 26 This update brings more detailed wildfire coverage and a couple of fixes.
WILDFIRE MAP IMPROVEMENTS
California fire maps now include CAL FIRE incidents and boundaries for more complete coverage. British Columbia fires have clearer names and links to official details.
FIXES
Fixed chart labels overlapping in large widgets on iPad mini and improved forecast reliability in Australia.
Kai & Malin 3.6.2 Aug 23 This update adds a new Sun Graph, more flexible forecast widgets, local temperatures for travel, and a broad round of accessibility and reliability improvements.
SUN GRAPH
See how sunrise, sunset, and daylight length change throughout the year in Monthly Averages.
MORE WIDGET CONFIGURATIONS
New 5-hour and 5-day layouts give you more ways to view the forecast, with an every-other-hour option for supported widgets.
TRAVEL TEMPERATURES
When traveling, hourly details already show temperatures in both your preferred unit and the local unit. Now daily forecasts and Apple Watch do too.
ACCESSIBILITY
Charts are easier to use with VoiceOver and larger text.
OTHER IMPROVEMENTS
Fire maps, storm tracking, and alerts load faster, widget refreshes are more reliable, and map navigation is smoother.
Kai & Malin 3.6.1 Aug 4 This update adds a new Sun Graph, more flexible forecast widgets, local temperatures for travel, and a broad round of accessibility and reliability improvements.
SUN GRAPH
See how sunrise, sunset, and daylight length change throughout the year in Monthly Averages.
MORE WIDGET CONFIGURATIONS
New 5-hour and 5-day layouts give you more ways to view the forecast, with an every-other-hour option for supported widgets.
TRAVEL TEMPERATURES
When traveling, hourly details already show temperatures in both your preferred unit and the local unit. Now daily forecasts and Apple Watch do too.
ACCESSIBILITY
Charts are easier to use with VoiceOver and larger text.
OTHER IMPROVEMENTS
Fire maps, storm tracking, and alerts load faster, widget refreshes are more reliable, and map navigation is smoother.
Kai & Malin 3.6 Jul 26 This update fixes several chart issues on iOS 27, resolves a couple of widget issues, improves overall performance, refines the UV and AQI detail charts, and fixes a few localization inconsistencies.
Kai & Malin 3.5.3 Jun 20 This update fixes a bunch of chart issues on iOS 27, improves overall performance, refines the UV and AQI extra detail charts, and fixes a few localization inconsistencies.
Kai & Malin 3.5.2 Jun 17 This update adds new fire, air quality, UV, and temperature map layers, hourly pressure and visibility details, and favorite location switching on Apple Watch.
FIRE MAPS & ENVIRONMENTAL LAYERS
Mercury’s weather maps now include fire activity, air quality, UV, and temperature layers. Fire Maps show active fires, fire size, affected area, and containment level, making it easier to understand nearby environmental conditions at a glance.
HOURLY FORECAST DETAILS
Hourly details now include pressure and visibility for each hour, making it easier to compare changing conditions throughout the day.
APPLE WATCH LOCATION SWITCHING
Saved locations are now available directly on Apple Watch, so you can quickly check forecasts for your favorite locations, home, and upcoming trips.
Kai & Malin 3.5.1 Jun 2 This update adds new fire, air quality, UV, and temperature map layers, hourly pressure and visibility details, and favorite location switching on Apple Watch.
FIRE MAPS & ENVIRONMENTAL LAYERS
Mercury’s weather maps now include fire activity, air quality, UV, and temperature layers. Fire Maps show active fires, fire size, affected area, and containment level, making it easier to understand nearby environmental conditions at a glance.
HOURLY FORECAST DETAILS
Hourly details now include pressure and visibility for each hour, making it easier to compare changing conditions throughout the day.
APPLE WATCH LOCATION SWITCHING
Saved locations are now available directly on Apple Watch, so you can quickly check forecasts for your favorite locations, home, and upcoming trips.
Kai & Malin 3.5 May 26 This update improves the cloud coverage layer with more historical data and a longer forecast horizon.
Kai & Malin 3.4.9 May 15 This update keeps radar playback running correctly while scrubbing the timeline, fixes a rare crash when saved locations or trips change, and includes a few small localization fixes.
Kai & Malin 3.4.8 Apr 29 This update improves trip forecast refresh speed after adding or editing a trip, fixes a daily chart display issue when sharing screenshots on iOS 26.2+, and includes a couple of small Apple Watch improvements, including cleaner trip headers and faster premium unlock after purchasing on another device.
Kai & Malin 3.4.7 Apr 22 This update improves radar and storm widgets, makes tide fetches faster, and includes a few recent reliability fixes.
RADAR & STORM WIDGETS
Radar and storm widgets now open to the map view with better zoom alignment.
PERFORMANCE & FIXES
Tide fetches are faster, and we fixed a rare confetti crash plus a shadow clipping issue on iOS 26.
Kai & Malin 3.4.6 Apr 2 This update adds 10 more languages, improves right-to-left support, and includes a round of sharing, export, and reliability fixes.
MORE LANGUAGES
Mercury is now available in Arabic, Traditional Chinese, Korean, Portuguese, Turkish (thank you, Murat!), Finnish, Italian, Dutch, Norwegian, and Hebrew.
RIGHT-TO-LEFT SUPPORT
Added better right-to-left layout and text handling for Hebrew and Arabic.
MAP & SHARING IMPROVEMENTS
Map exports now match the preview more closely, timeline prefetching is smarter, and sharing and radar interactions are more reliable.
RELIABILITY
Improved locale refreshes and polished translations throughout the app.
Kai & Malin 3.4.5 Mar 9 This update adds 10 more languages, improves right-to-left support, and includes a round of sharing, export, and reliability fixes.
MORE LANGUAGES
Mercury is now available in Arabic, Traditional Chinese, Korean, Portuguese, Turkish, Finnish, Italian, Dutch, Norwegian, and Hebrew.
RIGHT-TO-LEFT SUPPORT
Added better right-to-left layout and text handling for Hebrew and Arabic.
MAP & SHARING IMPROVEMENTS
Map exports now match the preview more closely, timeline prefetching is smarter, and sharing and radar interactions are more reliable.
RELIABILITY
Improved locale refreshes and polished translations throughout the app.
Kai & Malin 3.4.4 Mar 6 This update adds 10 more languages, improves right-to-left support, and includes a round of sharing, export, and reliability fixes.
MORE LANGUAGES
Mercury is now available in Arabic, Traditional Chinese, Korean, Portuguese, Turkish, Finnish, Italian, Dutch, Norwegian, and Hebrew.
RIGHT-TO-LEFT SUPPORT
Added better right-to-left layout and text handling for Hebrew and Arabic.
MAP & SHARING IMPROVEMENTS
Map exports now match the preview more closely, timeline prefetching is smarter, and sharing and radar interactions are more reliable.
RELIABILITY
Improved locale refreshes and polished translations throughout the app.
Kai & Malin 3.4.3 Mar 6 This update improves map sharing, adds a cloud coverage forecast to the weather map, adds Japanese localization, and includes a handful of fixes.
MAP SHARING IMPROVEMENTS
Sharing hurricane, storm, and radar maps is faster and more reliable, with sharper exports and a new storm‑only option.
CLOUD COVERAGE FORECAST
The weather map now includes a cloud coverage forecast layer.
JAPANESE LOCALIZATION
Mercury is now available in Japanese.
FIXES
Improved tide fetch reliability and fixed a rare hang when switching weather sources, plus a few small widget and localization fixes.
Kai & Malin 3.4.2 Feb 24 This update improves map sharing, adds a cloud coverage forecast to the weather map, adds Japanese localization, and includes a handful of fixes.
MAP SHARING IMPROVEMENTS
Sharing hurricane, storm, and radar maps is faster and more reliable, with sharper exports and a new storm‑only option.
CLOUD COVERAGE FORECAST
The weather map now includes a cloud coverage forecast layer.
JAPANESE LOCALIZATION
Mercury is now available in Japanese.
FIXES
Improved tide fetch reliability and fixed a rare hang when switching weather sources, plus a few small widget and localization fixes.
Kai & Malin 3.4.1 Feb 21 This update improves map sharing, adds a cloud coverage forecast to the weather map, adds Japanese localization, and includes a handful of fixes.
MAP SHARING IMPROVEMENTS
Sharing hurricane, storm, and radar maps is faster and more reliable, with sharper exports and a new storm‑only option.
CLOUD COVERAGE FORECAST
The weather map now includes a cloud coverage forecast layer.
JAPANESE LOCALIZATION
Mercury is now available in Japanese.
FIXES
Improved tide fetch reliability and fixed a rare hang when switching weather sources, plus a few small widget and localization fixes.
Kai & Malin 3.4 Feb 19 This update introduces a new Screenshot Composer for sharing hurricane and radar maps.
SHARING HURRICANE AND STORM MAPS
Share a customizable image or GIF of the weather map. Choose what to include, like the rain radar, upcoming hurricanes, and favorite location pins.
Kai & Malin 3.3 Feb 7 This update adds Shortcuts support for trips, improves snow charts, and fixes a Screenshot Composer chart issue.
SHORTCUTS
Added actions to get upcoming trips, view past trips, and add new trips.
CHARTS
Adjusted snow charts and improved chart scales for better readability.
SCREENSHOT FIXES
Fixed missing daily chart details in the Screenshot Composer on iOS 26.
Kai & Malin 3.2.1 Jan 28 This update adds Shortcuts support for trips, improves snow charts, and fixes a Screenshot Composer chart issue.
SHORTCUTS
Added actions to get upcoming trips, view past trips, and add new trips.
CHARTS
Adjusted snow charts and improved chart scales for better readability.
SCREENSHOT FIXES
Fixed missing daily chart details in the Screenshot Composer on iOS 26.
Kai & Malin 3.2 Jan 26 This update improves chart performance and fixes a couple of layout issues on iOS 26.
PERFORMANCE
Hourly and daily forecast charts are smoother, especially when resizing windows on iPadOS.
FIXES
Fixed clipping when sharing current conditions on iOS 26 and a shadow clipping issue on iOS 26.2 (thanks, Manuel).
Kai & Malin 3.1.3 Jan 5
version 3.7
posted on 2026-09-17
Version History Mercury is ready for iOS 27! This is a big one: deeper Siri integration and new extra-large widgets. Plus, a more flexible Trip Forecast, new Tide widgets, and Monthly Averages comparisons to help plan your next adventure.
SIRI INTEGRATION
Ask Siri about upcoming or past trips, or add a new trip destination to Mercury. Natural-language requests and conversational follow-ups make it easier to plan your travels.
EXTRA-LARGE WIDGETS
On iOS 27, a new extra-large widget brings current conditions, upcoming rain, and hourly and daily forecasts together in one place.
FLEXIBLE LAYOUTS
The user interface now adapts as you resize its window in iPhone Mirroring.
TRIP FORECAST 2.0
Spend the morning in one place and the afternoon somewhere else, or plan a multi-stop road trip. Add precise trip times and multiple stops in a single day, with the weather for each destination appearing in your daily and hourly forecasts, including widgets and Apple Watch.
TIDE WIDGETS
Keep an eye on the tides from your Home Screen or Lock Screen. Choose a tide station to see the current tide height and upcoming highs and lows. The Tide widget also supports the new extra-large size on iOS 27. Available for supported coastal areas in the U.S. and Canada.
COMPARE MONTHLY AVERAGES
Compare temperatures, rainfall, sunshine, and daylight between two places throughout the year. See how a destination compares with home before planning your next trip.
OTHER IMPROVEMENTS
Clearer weather warning colors and more reliable forecast refreshes and radar loading.
Kai & Malin 3.7 5d ago This update brings more detailed wildfire coverage and a couple of fixes.
WILDFIRE MAP IMPROVEMENTS
California fire maps now include CAL FIRE incidents and boundaries for more complete coverage. British Columbia fires have clearer names and links to official details.
FIXES
Fixed an issue where the Daily widget could get stuck after editing its configuration. Also fixed chart labels overlapping in large widgets on iPad mini and improved forecast reliability in Australia.
Kai & Malin 3.6.3 Aug 26 This update brings more detailed wildfire coverage and a couple of fixes.
WILDFIRE MAP IMPROVEMENTS
California fire maps now include CAL FIRE incidents and boundaries for more complete coverage. British Columbia fires have clearer names and links to official details.
FIXES
Fixed chart labels overlapping in large widgets on iPad mini and improved forecast reliability in Australia.
Kai & Malin 3.6.2 Aug 23 This update adds a new Sun Graph, more flexible forecast widgets, local temperatures for travel, and a broad round of accessibility and reliability improvements.
SUN GRAPH
See how sunrise, sunset, and daylight length change throughout the year in Monthly Averages.
MORE WIDGET CONFIGURATIONS
New 5-hour and 5-day layouts give you more ways to view the forecast, with an every-other-hour option for supported widgets.
TRAVEL TEMPERATURES
When traveling, hourly details already show temperatures in both your preferred unit and the local unit. Now daily forecasts and Apple Watch do too.
ACCESSIBILITY
Charts are easier to use with VoiceOver and larger text.
OTHER IMPROVEMENTS
Fire maps, storm tracking, and alerts load faster, widget refreshes are more reliable, and map navigation is smoother.
Kai & Malin 3.6.1 Aug 4 This update adds a new Sun Graph, more flexible forecast widgets, local temperatures for travel, and a broad round of accessibility and reliability improvements.
SUN GRAPH
See how sunrise, sunset, and daylight length change throughout the year in Monthly Averages.
MORE WIDGET CONFIGURATIONS
New 5-hour and 5-day layouts give you more ways to view the forecast, with an every-other-hour option for supported widgets.
TRAVEL TEMPERATURES
When traveling, hourly details already show temperatures in both your preferred unit and the local unit. Now daily forecasts and Apple Watch do too.
ACCESSIBILITY
Charts are easier to use with VoiceOver and larger text.
OTHER IMPROVEMENTS
Fire maps, storm tracking, and alerts load faster, widget refreshes are more reliable, and map navigation is smoother.
Kai & Malin 3.6 Jul 26 This update fixes several chart issues on iOS 27, resolves a couple of widget issues, improves overall performance, refines the UV and AQI detail charts, and fixes a few localization inconsistencies.
Kai & Malin 3.5.3 Jun 20 This update fixes a bunch of chart issues on iOS 27, improves overall performance, refines the UV and AQI extra detail charts, and fixes a few localization inconsistencies.
Kai & Malin 3.5.2 Jun 17 This update adds new fire, air quality, UV, and temperature map layers, hourly pressure and visibility details, and favorite location switching on Apple Watch.
FIRE MAPS & ENVIRONMENTAL LAYERS
Mercury’s weather maps now include fire activity, air quality, UV, and temperature layers. Fire Maps show active fires, fire size, affected area, and containment level, making it easier to understand nearby environmental conditions at a glance.
HOURLY FORECAST DETAILS
Hourly details now include pressure and visibility for each hour, making it easier to compare changing conditions throughout the day.
APPLE WATCH LOCATION SWITCHING
Saved locations are now available directly on Apple Watch, so you can quickly check forecasts for your favorite locations, home, and upcoming trips.
Kai & Malin 3.5.1 Jun 2 This update adds new fire, air quality, UV, and temperature map layers, hourly pressure and visibility details, and favorite location switching on Apple Watch.
FIRE MAPS & ENVIRONMENTAL LAYERS
Mercury’s weather maps now include fire activity, air quality, UV, and temperature layers. Fire Maps show active fires, fire size, affected area, and containment level, making it easier to understand nearby environmental conditions at a glance.
HOURLY FORECAST DETAILS
Hourly details now include pressure and visibility for each hour, making it easier to compare changing conditions throughout the day.
APPLE WATCH LOCATION SWITCHING
Saved locations are now available directly on Apple Watch, so you can quickly check forecasts for your favorite locations, home, and upcoming trips.
Kai & Malin 3.5 May 26 This update improves the cloud coverage layer with more historical data and a longer forecast horizon.
Kai & Malin 3.4.9 May 15 This update keeps radar playback running correctly while scrubbing the timeline, fixes a rare crash when saved locations or trips change, and includes a few small localization fixes.
Kai & Malin 3.4.8 Apr 29 This update improves trip forecast refresh speed after adding or editing a trip, fixes a daily chart display issue when sharing screenshots on iOS 26.2+, and includes a couple of small Apple Watch improvements, including cleaner trip headers and faster premium unlock after purchasing on another device.
Kai & Malin 3.4.7 Apr 22 This update improves radar and storm widgets, makes tide fetches faster, and includes a few recent reliability fixes.
RADAR & STORM WIDGETS
Radar and storm widgets now open to the map view with better zoom alignment.
PERFORMANCE & FIXES
Tide fetches are faster, and we fixed a rare confetti crash plus a shadow clipping issue on iOS 26.
Kai & Malin 3.4.6 Apr 2 This update adds 10 more languages, improves right-to-left support, and includes a round of sharing, export, and reliability fixes.
MORE LANGUAGES
Mercury is now available in Arabic, Traditional Chinese, Korean, Portuguese, Turkish (thank you, Murat!), Finnish, Italian, Dutch, Norwegian, and Hebrew.
RIGHT-TO-LEFT SUPPORT
Added better right-to-left layout and text handling for Hebrew and Arabic.
MAP & SHARING IMPROVEMENTS
Map exports now match the preview more closely, timeline prefetching is smarter, and sharing and radar interactions are more reliable.
RELIABILITY
Improved locale refreshes and polished translations throughout the app.
Kai & Malin 3.4.5 Mar 9 This update adds 10 more languages, improves right-to-left support, and includes a round of sharing, export, and reliability fixes.
MORE LANGUAGES
Mercury is now available in Arabic, Traditional Chinese, Korean, Portuguese, Turkish, Finnish, Italian, Dutch, Norwegian, and Hebrew.
RIGHT-TO-LEFT SUPPORT
Added better right-to-left layout and text handling for Hebrew and Arabic.
MAP & SHARING IMPROVEMENTS
Map exports now match the preview more closely, timeline prefetching is smarter, and sharing and radar interactions are more reliable.
RELIABILITY
Improved locale refreshes and polished translations throughout the app.
Kai & Malin 3.4.4 Mar 6 This update adds 10 more languages, improves right-to-left support, and includes a round of sharing, export, and reliability fixes.
MORE LANGUAGES
Mercury is now available in Arabic, Traditional Chinese, Korean, Portuguese, Turkish, Finnish, Italian, Dutch, Norwegian, and Hebrew.
RIGHT-TO-LEFT SUPPORT
Added better right-to-left layout and text handling for Hebrew and Arabic.
MAP & SHARING IMPROVEMENTS
Map exports now match the preview more closely, timeline prefetching is smarter, and sharing and radar interactions are more reliable.
RELIABILITY
Improved locale refreshes and polished translations throughout the app.
Kai & Malin 3.4.3 Mar 6 This update improves map sharing, adds a cloud coverage forecast to the weather map, adds Japanese localization, and includes a handful of fixes.
MAP SHARING IMPROVEMENTS
Sharing hurricane, storm, and radar maps is faster and more reliable, with sharper exports and a new storm‑only option.
CLOUD COVERAGE FORECAST
The weather map now includes a cloud coverage forecast layer.
JAPANESE LOCALIZATION
Mercury is now available in Japanese.
FIXES
Improved tide fetch reliability and fixed a rare hang when switching weather sources, plus a few small widget and localization fixes.
Kai & Malin 3.4.2 Feb 24 This update improves map sharing, adds a cloud coverage forecast to the weather map, adds Japanese localization, and includes a handful of fixes.
MAP SHARING IMPROVEMENTS
Sharing hurricane, storm, and radar maps is faster and more reliable, with sharper exports and a new storm‑only option.
CLOUD COVERAGE FORECAST
The weather map now includes a cloud coverage forecast layer.
JAPANESE LOCALIZATION
Mercury is now available in Japanese.
FIXES
Improved tide fetch reliability and fixed a rare hang when switching weather sources, plus a few small widget and localization fixes.
Kai & Malin 3.4.1 Feb 21 This update improves map sharing, adds a cloud coverage forecast to the weather map, adds Japanese localization, and includes a handful of fixes.
MAP SHARING IMPROVEMENTS
Sharing hurricane, storm, and radar maps is faster and more reliable, with sharper exports and a new storm‑only option.
CLOUD COVERAGE FORECAST
The weather map now includes a cloud coverage forecast layer.
JAPANESE LOCALIZATION
Mercury is now available in Japanese.
FIXES
Improved tide fetch reliability and fixed a rare hang when switching weather sources, plus a few small widget and localization fixes.
Kai & Malin 3.4 Feb 19 This update introduces a new Screenshot Composer for sharing hurricane and radar maps.
SHARING HURRICANE AND STORM MAPS
Share a customizable image or GIF of the weather map. Choose what to include, like the rain radar, upcoming hurricanes, and favorite location pins.
Kai & Malin 3.3 Feb 7 This update adds Shortcuts support for trips, improves snow charts, and fixes a Screenshot Composer chart issue.
SHORTCUTS
Added actions to get upcoming trips, view past trips, and add new trips.
CHARTS
Adjusted snow charts and improved chart scales for better readability.
SCREENSHOT FIXES
Fixed missing daily chart details in the Screenshot Composer on iOS 26.
Kai & Malin 3.2.1 Jan 28 This update adds Shortcuts support for trips, improves snow charts, and fixes a Screenshot Composer chart issue.
SHORTCUTS
Added actions to get upcoming trips, view past trips, and add new trips.
CHARTS
Adjusted snow charts and improved chart scales for better readability.
SCREENSHOT FIXES
Fixed missing daily chart details in the Screenshot Composer on iOS 26.
Kai & Malin 3.2 Jan 26 This update improves chart performance and fixes a couple of layout issues on iOS 26.
PERFORMANCE
Hourly and daily forecast charts are smoother, especially when resizing windows on iPadOS.
FIXES
Fixed clipping when sharing current conditions on iOS 26 and a shadow clipping issue on iOS 26.2 (thanks, Manuel).
Kai & Malin 3.1.3 Jan 5 This update improves chart performance and fixes a couple of layout issues on iOS 26.
PERFORMANCE
Hourly and daily forecast charts are smoother, especially when resizing windows on iPadOS.
FIXES
Fixed clipping when sharing current conditions on iOS 26 and a shadow clipping issue on iOS 26.2 (thanks, Manuel).
Kai & Malin 3.1.2 Jan 4 This update makes precipitation forecasts clearer and more accurate across the app and widgets.
PRECIPITATION IMPROVEMENTS
Minute and hourly forecasts now do a better job at distinguishing rain, snow, and sleet and snow charts scale more naturally.
RELIABILITY
Improved favorite location caching, a fix for deleting favorites, and a few storm tracking and other reliability improvements.
Kai & Malin 3.1.1 12/29/2025
version 3.6.3
posted on 2026-09-10
Version History This update brings more detailed wildfire coverage and a couple of fixes.
WILDFIRE MAP IMPROVEMENTS
California fire maps now include CAL FIRE incidents and boundaries for more complete coverage. British Columbia fires have clearer names and links to official details.
FIXES
Fixed an issue where the Daily widget could get stuck after editing its configuration. Also fixed chart labels overlapping in large widgets on iPad mini and improved forecast reliability in Australia.
Kai & Malin 3.6.3 Aug 26 This update brings more detailed wildfire coverage and a couple of fixes.
WILDFIRE MAP IMPROVEMENTS
California fire maps now include CAL FIRE incidents and boundaries for more complete coverage. British Columbia fires have clearer names and links to official details.
FIXES
Fixed chart labels overlapping in large widgets on iPad mini and improved forecast reliability in Australia.
Kai & Malin 3.6.2 Aug 23 This update adds a new Sun Graph, more flexible forecast widgets, local temperatures for travel, and a broad round of accessibility and reliability improvements.
SUN GRAPH
See how sunrise, sunset, and daylight length change throughout the year in Monthly Averages.
MORE WIDGET CONFIGURATIONS
New 5-hour and 5-day layouts give you more ways to view the forecast, with an every-other-hour option for supported widgets.
TRAVEL TEMPERATURES
When traveling, hourly details already show temperatures in both your preferred unit and the local unit. Now daily forecasts and Apple Watch do too.
ACCESSIBILITY
Charts are easier to use with VoiceOver and larger text.
OTHER IMPROVEMENTS
Fire maps, storm tracking, and alerts load faster, widget refreshes are more reliable, and map navigation is smoother.
Kai & Malin 3.6.1 Aug 4 This update adds a new Sun Graph, more flexible forecast widgets, local temperatures for travel, and a broad round of accessibility and reliability improvements.
SUN GRAPH
See how sunrise, sunset, and daylight length change throughout the year in Monthly Averages.
MORE WIDGET CONFIGURATIONS
New 5-hour and 5-day layouts give you more ways to view the forecast, with an every-other-hour option for supported widgets.
TRAVEL TEMPERATURES
When traveling, hourly details already show temperatures in both your preferred unit and the local unit. Now daily forecasts and Apple Watch do too.
ACCESSIBILITY
Charts are easier to use with VoiceOver and larger text.
OTHER IMPROVEMENTS
Fire maps, storm tracking, and alerts load faster, widget refreshes are more reliable, and map navigation is smoother.
Kai & Malin 3.6 Jul 26 This update fixes several chart issues on iOS 27, resolves a couple of widget issues, improves overall performance, refines the UV and AQI detail charts, and fixes a few localization inconsistencies.
Kai & Malin 3.5.3 Jun 20 This update fixes a bunch of chart issues on iOS 27, improves overall performance, refines the UV and AQI extra detail charts, and fixes a few localization inconsistencies.
Kai & Malin 3.5.2 Jun 17 This update adds new fire, air quality, UV, and temperature map layers, hourly pressure and visibility details, and favorite location switching on Apple Watch.
FIRE MAPS & ENVIRONMENTAL LAYERS
Mercury’s weather maps now include fire activity, air quality, UV, and temperature layers. Fire Maps show active fires, fire size, affected area, and containment level, making it easier to understand nearby environmental conditions at a glance.
HOURLY FORECAST DETAILS
Hourly details now include pressure and visibility for each hour, making it easier to compare changing conditions throughout the day.
APPLE WATCH LOCATION SWITCHING
Saved locations are now available directly on Apple Watch, so you can quickly check forecasts for your favorite locations, home, and upcoming trips.
Kai & Malin 3.5.1 Jun 2 This update adds new fire, air quality, UV, and temperature map layers, hourly pressure and visibility details, and favorite location switching on Apple Watch.
FIRE MAPS & ENVIRONMENTAL LAYERS
Mercury’s weather maps now include fire activity, air quality, UV, and temperature layers. Fire Maps show active fires, fire size, affected area, and containment level, making it easier to understand nearby environmental conditions at a glance.
HOURLY FORECAST DETAILS
Hourly details now include pressure and visibility for each hour, making it easier to compare changing conditions throughout the day.
APPLE WATCH LOCATION SWITCHING
Saved locations are now available directly on Apple Watch, so you can quickly check forecasts for your favorite locations, home, and upcoming trips.
Kai & Malin 3.5 May 26 This update improves the cloud coverage layer with more historical data and a longer forecast horizon.
Kai & Malin 3.4.9 May 15 This update keeps radar playback running correctly while scrubbing the timeline, fixes a rare crash when saved locations or trips change, and includes a few small localization fixes.
Kai & Malin 3.4.8 Apr 29 This update improves trip forecast refresh speed after adding or editing a trip, fixes a daily chart display issue when sharing screenshots on iOS 26.2+, and includes a couple of small Apple Watch improvements, including cleaner trip headers and faster premium unlock after purchasing on another device.
Kai & Malin 3.4.7 Apr 22 This update improves radar and storm widgets, makes tide fetches faster, and includes a few recent reliability fixes.
RADAR & STORM WIDGETS
Radar and storm widgets now open to the map view with better zoom alignment.
PERFORMANCE & FIXES
Tide fetches are faster, and we fixed a rare confetti crash plus a shadow clipping issue on iOS 26.
Kai & Malin 3.4.6 Apr 2 This update adds 10 more languages, improves right-to-left support, and includes a round of sharing, export, and reliability fixes.
MORE LANGUAGES
Mercury is now available in Arabic, Traditional Chinese, Korean, Portuguese, Turkish (thank you, Murat!), Finnish, Italian, Dutch, Norwegian, and Hebrew.
RIGHT-TO-LEFT SUPPORT
Added better right-to-left layout and text handling for Hebrew and Arabic.
MAP & SHARING IMPROVEMENTS
Map exports now match the preview more closely, timeline prefetching is smarter, and sharing and radar interactions are more reliable.
RELIABILITY
Improved locale refreshes and polished translations throughout the app.
Kai & Malin 3.4.5 Mar 9 This update adds 10 more languages, improves right-to-left support, and includes a round of sharing, export, and reliability fixes.
MORE LANGUAGES
Mercury is now available in Arabic, Traditional Chinese, Korean, Portuguese, Turkish, Finnish, Italian, Dutch, Norwegian, and Hebrew.
RIGHT-TO-LEFT SUPPORT
Added better right-to-left layout and text handling for Hebrew and Arabic.
MAP & SHARING IMPROVEMENTS
Map exports now match the preview more closely, timeline prefetching is smarter, and sharing and radar interactions are more reliable.
RELIABILITY
Improved locale refreshes and polished translations throughout the app.
Kai & Malin 3.4.4 Mar 6 This update adds 10 more languages, improves right-to-left support, and includes a round of sharing, export, and reliability fixes.
MORE LANGUAGES
Mercury is now available in Arabic, Traditional Chinese, Korean, Portuguese, Turkish, Finnish, Italian, Dutch, Norwegian, and Hebrew.
RIGHT-TO-LEFT SUPPORT
Added better right-to-left layout and text handling for Hebrew and Arabic.
MAP & SHARING IMPROVEMENTS
Map exports now match the preview more closely, timeline prefetching is smarter, and sharing and radar interactions are more reliable.
RELIABILITY
Improved locale refreshes and polished translations throughout the app.
Kai & Malin 3.4.3 Mar 6 This update improves map sharing, adds a cloud coverage forecast to the weather map, adds Japanese localization, and includes a handful of fixes.
MAP SHARING IMPROVEMENTS
Sharing hurricane, storm, and radar maps is faster and more reliable, with sharper exports and a new storm‑only option.
CLOUD COVERAGE FORECAST
The weather map now includes a cloud coverage forecast layer.
JAPANESE LOCALIZATION
Mercury is now available in Japanese.
FIXES
Improved tide fetch reliability and fixed a rare hang when switching weather sources, plus a few small widget and localization fixes.
Kai & Malin 3.4.2 Feb 24 This update improves map sharing, adds a cloud coverage forecast to the weather map, adds Japanese localization, and includes a handful of fixes.
MAP SHARING IMPROVEMENTS
Sharing hurricane, storm, and radar maps is faster and more reliable, with sharper exports and a new storm‑only option.
CLOUD COVERAGE FORECAST
The weather map now includes a cloud coverage forecast layer.
JAPANESE LOCALIZATION
Mercury is now available in Japanese.
FIXES
Improved tide fetch reliability and fixed a rare hang when switching weather sources, plus a few small widget and localization fixes.
Kai & Malin 3.4.1 Feb 21 This update improves map sharing, adds a cloud coverage forecast to the weather map, adds Japanese localization, and includes a handful of fixes.
MAP SHARING IMPROVEMENTS
Sharing hurricane, storm, and radar maps is faster and more reliable, with sharper exports and a new storm‑only option.
CLOUD COVERAGE FORECAST
The weather map now includes a cloud coverage forecast layer.
JAPANESE LOCALIZATION
Mercury is now available in Japanese.
FIXES
Improved tide fetch reliability and fixed a rare hang when switching weather sources, plus a few small widget and localization fixes.
Kai & Malin 3.4 Feb 19 This update introduces a new Screenshot Composer for sharing hurricane and radar maps.
SHARING HURRICANE AND STORM MAPS
Share a customizable image or GIF of the weather map. Choose what to include, like the rain radar, upcoming hurricanes, and favorite location pins.
Kai & Malin 3.3 Feb 7 This update adds Shortcuts support for trips, improves snow charts, and fixes a Screenshot Composer chart issue.
SHORTCUTS
Added actions to get upcoming trips, view past trips, and add new trips.
CHARTS
Adjusted snow charts and improved chart scales for better readability.
SCREENSHOT FIXES
Fixed missing daily chart details in the Screenshot Composer on iOS 26.
Kai & Malin 3.2.1 Jan 28 This update adds Shortcuts support for trips, improves snow charts, and fixes a Screenshot Composer chart issue.
SHORTCUTS
Added actions to get upcoming trips, view past trips, and add new trips.
CHARTS
Adjusted snow charts and improved chart scales for better readability.
SCREENSHOT FIXES
Fixed missing daily chart details in the Screenshot Composer on iOS 26.
Kai & Malin 3.2 Jan 26 This update improves chart performance and fixes a couple of layout issues on iOS 26.
PERFORMANCE
Hourly and daily forecast charts are smoother, especially when resizing windows on iPadOS.
FIXES
Fixed clipping when sharing current conditions on iOS 26 and a shadow clipping issue on iOS 26.2 (thanks, Manuel).
Kai & Malin 3.1.3 Jan 5 This update improves chart performance and fixes a couple of layout issues on iOS 26.
PERFORMANCE
Hourly and daily forecast charts are smoother, especially when resizing windows on iPadOS.
FIXES
Fixed clipping when sharing current conditions on iOS 26 and a shadow clipping issue on iOS 26.2 (thanks, Manuel).
Kai & Malin 3.1.2 Jan 4 This update makes precipitation forecasts clearer and more accurate across the app and widgets.
PRECIPITATION IMPROVEMENTS
Minute and hourly forecasts now do a better job at distinguishing rain, snow, and sleet and snow charts scale more naturally.
RELIABILITY
Improved favorite location caching, a fix for deleting favorites, and a few storm tracking and other reliability improvements.
Kai & Malin 3.1.1 12/29/2025 EXPANDED STORM COVERAGE
Storm tracking now covers more parts of the world, including the Western Pacific and Indian Ocean.
Kai & Malin 3.1 12/22/2025
version 3.5.3
posted on 2026-07-23
Version History This update fixes several chart issues on iOS 27, resolves a couple of widget issues, improves overall performance, refines the UV and AQI detail charts, and fixes a few localization inconsistencies.
Kai & Malin 3.5.3 Jun 20 This update fixes a bunch of chart issues on iOS 27, improves overall performance, refines the UV and AQI extra detail charts, and fixes a few localization inconsistencies.
Kai & Malin 3.5.2 Jun 17 This update adds new fire, air quality, UV, and temperature map layers, hourly pressure and visibility details, and favorite location switching on Apple Watch.
FIRE MAPS & ENVIRONMENTAL LAYERS
Mercury’s weather maps now include fire activity, air quality, UV, and temperature layers. Fire Maps show active fires, fire size, affected area, and containment level, making it easier to understand nearby environmental conditions at a glance.
HOURLY FORECAST DETAILS
Hourly details now include pressure and visibility for each hour, making it easier to compare changing conditions throughout the day.
APPLE WATCH LOCATION SWITCHING
Saved locations are now available directly on Apple Watch, so you can quickly check forecasts for your favorite locations, home, and upcoming trips.
Kai & Malin 3.5.1 Jun 2 This update adds new fire, air quality, UV, and temperature map layers, hourly pressure and visibility details, and favorite location switching on Apple Watch.
FIRE MAPS & ENVIRONMENTAL LAYERS
Mercury’s weather maps now include fire activity, air quality, UV, and temperature layers. Fire Maps show active fires, fire size, affected area, and containment level, making it easier to understand nearby environmental conditions at a glance.
HOURLY FORECAST DETAILS
Hourly details now include pressure and visibility for each hour, making it easier to compare changing conditions throughout the day.
APPLE WATCH LOCATION SWITCHING
Saved locations are now available directly on Apple Watch, so you can quickly check forecasts for your favorite locations, home, and upcoming trips.
Kai & Malin 3.5 May 26 This update improves the cloud coverage layer with more historical data and a longer forecast horizon.
Kai & Malin 3.4.9 May 15 This update keeps radar playback running correctly while scrubbing the timeline, fixes a rare crash when saved locations or trips change, and includes a few small localization fixes.
Kai & Malin 3.4.8 Apr 29 This update improves trip forecast refresh speed after adding or editing a trip, fixes a daily chart display issue when sharing screenshots on iOS 26.2+, and includes a couple of small Apple Watch improvements, including cleaner trip headers and faster premium unlock after purchasing on another device.
Kai & Malin 3.4.7 Apr 22 This update improves radar and storm widgets, makes tide fetches faster, and includes a few recent reliability fixes.
RADAR & STORM WIDGETS
Radar and storm widgets now open to the map view with better zoom alignment.
PERFORMANCE & FIXES
Tide fetches are faster, and we fixed a rare confetti crash plus a shadow clipping issue on iOS 26.
Kai & Malin 3.4.6 Apr 2 This update adds 10 more languages, improves right-to-left support, and includes a round of sharing, export, and reliability fixes.
MORE LANGUAGES
Mercury is now available in Arabic, Traditional Chinese, Korean, Portuguese, Turkish (thank you, Murat!), Finnish, Italian, Dutch, Norwegian, and Hebrew.
RIGHT-TO-LEFT SUPPORT
Added better right-to-left layout and text handling for Hebrew and Arabic.
MAP & SHARING IMPROVEMENTS
Map exports now match the preview more closely, timeline prefetching is smarter, and sharing and radar interactions are more reliable.
RELIABILITY
Improved locale refreshes and polished translations throughout the app.
Kai & Malin 3.4.5 Mar 9 This update adds 10 more languages, improves right-to-left support, and includes a round of sharing, export, and reliability fixes.
MORE LANGUAGES
Mercury is now available in Arabic, Traditional Chinese, Korean, Portuguese, Turkish, Finnish, Italian, Dutch, Norwegian, and Hebrew.
RIGHT-TO-LEFT SUPPORT
Added better right-to-left layout and text handling for Hebrew and Arabic.
MAP & SHARING IMPROVEMENTS
Map exports now match the preview more closely, timeline prefetching is smarter, and sharing and radar interactions are more reliable.
RELIABILITY
Improved locale refreshes and polished translations throughout the app.
Kai & Malin 3.4.4 Mar 6 This update adds 10 more languages, improves right-to-left support, and includes a round of sharing, export, and reliability fixes.
MORE LANGUAGES
Mercury is now available in Arabic, Traditional Chinese, Korean, Portuguese, Turkish, Finnish, Italian, Dutch, Norwegian, and Hebrew.
RIGHT-TO-LEFT SUPPORT
Added better right-to-left layout and text handling for Hebrew and Arabic.
MAP & SHARING IMPROVEMENTS
Map exports now match the preview more closely, timeline prefetching is smarter, and sharing and radar interactions are more reliable.
RELIABILITY
Improved locale refreshes and polished translations throughout the app.
Kai & Malin 3.4.3 Mar 6 This update improves map sharing, adds a cloud coverage forecast to the weather map, adds Japanese localization, and includes a handful of fixes.
MAP SHARING IMPROVEMENTS
Sharing hurricane, storm, and radar maps is faster and more reliable, with sharper exports and a new storm‑only option.
CLOUD COVERAGE FORECAST
The weather map now includes a cloud coverage forecast layer.
JAPANESE LOCALIZATION
Mercury is now available in Japanese.
FIXES
Improved tide fetch reliability and fixed a rare hang when switching weather sources, plus a few small widget and localization fixes.
Kai & Malin 3.4.2 Feb 24 This update improves map sharing, adds a cloud coverage forecast to the weather map, adds Japanese localization, and includes a handful of fixes.
MAP SHARING IMPROVEMENTS
Sharing hurricane, storm, and radar maps is faster and more reliable, with sharper exports and a new storm‑only option.
CLOUD COVERAGE FORECAST
The weather map now includes a cloud coverage forecast layer.
JAPANESE LOCALIZATION
Mercury is now available in Japanese.
FIXES
Improved tide fetch reliability and fixed a rare hang when switching weather sources, plus a few small widget and localization fixes.
Kai & Malin 3.4.1 Feb 21 This update improves map sharing, adds a cloud coverage forecast to the weather map, adds Japanese localization, and includes a handful of fixes.
MAP SHARING IMPROVEMENTS
Sharing hurricane, storm, and radar maps is faster and more reliable, with sharper exports and a new storm‑only option.
CLOUD COVERAGE FORECAST
The weather map now includes a cloud coverage forecast layer.
JAPANESE LOCALIZATION
Mercury is now available in Japanese.
FIXES
Improved tide fetch reliability and fixed a rare hang when switching weather sources, plus a few small widget and localization fixes.
Kai & Malin 3.4 Feb 19 This update introduces a new Screenshot Composer for sharing hurricane and radar maps.
SHARING HURRICANE AND STORM MAPS
Share a customizable image or GIF of the weather map. Choose what to include, like the rain radar, upcoming hurricanes, and favorite location pins.
Kai & Malin 3.3 Feb 7 This update adds Shortcuts support for trips, improves snow charts, and fixes a Screenshot Composer chart issue.
SHORTCUTS
Added actions to get upcoming trips, view past trips, and add new trips.
CHARTS
Adjusted snow charts and improved chart scales for better readability.
SCREENSHOT FIXES
Fixed missing daily chart details in the Screenshot Composer on iOS 26.
Kai & Malin 3.2.1 Jan 28 This update adds Shortcuts support for trips, improves snow charts, and fixes a Screenshot Composer chart issue.
SHORTCUTS
Added actions to get upcoming trips, view past trips, and add new trips.
CHARTS
Adjusted snow charts and improved chart scales for better readability.
SCREENSHOT FIXES
Fixed missing daily chart details in the Screenshot Composer on iOS 26.
Kai & Malin 3.2 Jan 26 This update improves chart performance and fixes a couple of layout issues on iOS 26.
PERFORMANCE
Hourly and daily forecast charts are smoother, especially when resizing windows on iPadOS.
FIXES
Fixed clipping when sharing current conditions on iOS 26 and a shadow clipping issue on iOS 26.2 (thanks, Manuel).
Kai & Malin 3.1.3 Jan 5 This update improves chart performance and fixes a couple of layout issues on iOS 26.
PERFORMANCE
Hourly and daily forecast charts are smoother, especially when resizing windows on iPadOS.
FIXES
Fixed clipping when sharing current conditions on iOS 26 and a shadow clipping issue on iOS 26.2 (thanks, Manuel).
Kai & Malin 3.1.2 Jan 4 This update makes precipitation forecasts clearer and more accurate across the app and widgets.
PRECIPITATION IMPROVEMENTS
Minute and hourly forecasts now do a better job at distinguishing rain, snow, and sleet and snow charts scale more naturally.
RELIABILITY
Improved favorite location caching, a fix for deleting favorites, and a few storm tracking and other reliability improvements.
Kai & Malin 3.1.1 12/29/2025 EXPANDED STORM COVERAGE
Storm tracking now covers more parts of the world, including the Western Pacific and Indian Ocean.
Kai & Malin 3.1 12/22/2025 This time, we fixed an issue where widgets could briefly show the previous hour when set to locations with 30-minute time zone offsets. We also replaced the generic clock glyph in the hourly details bubble with one that actually shows the selected time.
New in Mercury Weather 3.0:
HURRICANE & TROPICAL STORM TRACKING
• Track hurricanes and tropical storms with real‑time positions, forecast cones, and recent tracks for the Atlantic and Pacific
• New Storm widgets show current position and storm intensity
• Configure storm widgets by basin, or follow the nearest storm. Customize map style, zoom, and past‑track length
TIDE FORECASTS
• Tide forecasts for U.S. and Canadian coastal areas with 48-hour predictions and current conditions
• Tide forecasts are automatically shown when you’re at the coast (or viewing a coastal location)
UV & AIR QUALITY
• A new 24-hour UV forecast chart, accessible from the UV label in the current weather card
• Air quality forecasts are available whenever the AQI is expected to reach moderate or higher levels
OTHER IMPROVEMENTS
• Faster radar widgets with smarter caching and better recovery on slow networks
• Cleaner widget gallery placeholders
• Fix for a rare display issue when viewing locations with an upcoming time zone change 3.0.5 11/13/2025 This time, we’ve resolved some OpenWeather data source problems and visual glitches on upcoming OS versions.
New in Mercury Weather 3.0:
HURRICANE & TROPICAL STORM TRACKING
• Track hurricanes and tropical storms with real‑time positions, forecast cones, and recent tracks for the Atlantic and Pacific
• New Storm widgets show current position and storm intensity
• Configure storm widgets by basin, or follow the nearest storm. Customize map style, zoom, and past‑track length
TIDE FORECASTS
• Tide forecasts for U.S. and Canadian coastal areas with 48-hour predictions and current conditions
• Tide forecasts are automatically shown when you’re at the coast (or viewing a coastal location)
UV & AIR QUALITY
• A new 24-hour UV forecast chart, accessible from the UV label in the current weather card
• Air quality forecasts are available whenever the AQI is expected to reach moderate or higher levels
OTHER IMPROVEMENTS
• Faster radar widgets with smarter caching and better recovery on slow networks
• Cleaner widget gallery placeholders
• Fix for a rare display issue when viewing locations with an upcoming time zone change 3.0.4 11/10/2025 This time, we've fixed text truncation issues in the top section on watchOS, fixed some scrolling issues on watchOS 26, and fixed a widget issue that could cause the iPad to show an empty state when opening a widget with the location set to “Home”.
New in Mercury Weather 3.0:
HURRICANE & TROPICAL STORM TRACKING
• Track hurricanes and tropical storms with real‑time positions, forecast cones, and recent tracks for the Atlantic and Pacific
• New Storm widgets show current position and storm intensity
• Configure storm widgets by basin, or follow the nearest storm. Customize map style, zoom, and past‑track length
TIDE FORECASTS
• Tide forecasts for U.S. and Canadian coastal areas with 48-hour predictions and current conditions
• Tide forecasts are automatically shown when you’re at the coast (or viewing a coastal location)
UV & AIR QUALITY
• A new 24-hour UV forecast chart, accessible from the UV label in the current weather card
• Air quality forecasts are available whenever the AQI is expected to reach moderate or higher levels
OTHER IMPROVEMENTS
• Faster radar widgets with smarter caching and better recovery on slow networks
• Cleaner widget gallery placeholders
• Fix for a rare display issue when viewing locations with an upcoming time zone change 3.0.2 10/17/2025 This time, we've added a new color theme for the Current Weather widget, added tide info to the top section on watchOS, and fixed an issue where incorrectly formatted storms were not handled gracefully.
New in Mercury Weather 3.0:
HURRICANE & TROPICAL STORM TRACKING
• Track hurricanes and tropical storms with real‑time positions, forecast cones, and recent tracks for the Atlantic and Pacific
• New Storm widgets show current position and storm intensity
• Configure storm widgets by basin, or follow the nearest storm. Customize map style, zoom, and past‑track length
TIDE FORECASTS
• Tide forecasts for U.S. and Canadian coastal areas with 48-hour predictions and current conditions
• Tide forecasts are automatically shown when you’re at the coast (or viewing a coastal location)
UV & AIR QUALITY
• A new 24-hour UV forecast chart, accessible from the UV label in the current weather card
• Air quality forecasts are available whenever the AQI is expected to reach moderate or higher levels
OTHER IMPROVEMENTS
• Faster radar widgets with smarter caching and better recovery on slow networks
• Cleaner widget gallery placeholders
• Fix for a rare display issue when viewing locations with an upcoming time zone change 3.0.1 10/09/2025
version 3.5
posted on 2026-05-27
Version History This update adds new fire, air quality, UV, and temperature map layers, hourly pressure and visibility details, and favorite location switching on Apple Watch.
FIRE MAPS & ENVIRONMENTAL LAYERS
Mercury’s weather maps now include fire activity, air quality, UV, and temperature layers. Fire Maps show active fires, fire size, affected area, and containment level, making it easier to understand nearby environmental conditions at a glance.
HOURLY FORECAST DETAILS
Hourly details now include pressure and visibility for each hour, making it easier to compare changing conditions throughout the day.
APPLE WATCH LOCATION SWITCHING
Saved locations are now available directly on Apple Watch, so you can quickly check forecasts for your favorite locations, home, and upcoming trips.
Kai & Malin 3.5 20h ago This update improves the cloud coverage layer with more historical data and a longer forecast horizon.
Kai & Malin 3.4.9 May 15 This update keeps radar playback running correctly while scrubbing the timeline, fixes a rare crash when saved locations or trips change, and includes a few small localization fixes.
Kai & Malin 3.4.8 Apr 29 This update improves trip forecast refresh speed after adding or editing a trip, fixes a daily chart display issue when sharing screenshots on iOS 26.2+, and includes a couple of small Apple Watch improvements, including cleaner trip headers and faster premium unlock after purchasing on another device.
Kai & Malin 3.4.7 Apr 22 This update improves radar and storm widgets, makes tide fetches faster, and includes a few recent reliability fixes.
RADAR & STORM WIDGETS
Radar and storm widgets now open to the map view with better zoom alignment.
PERFORMANCE & FIXES
Tide fetches are faster, and we fixed a rare confetti crash plus a shadow clipping issue on iOS 26.
Kai & Malin 3.4.6 Apr 2 This update adds 10 more languages, improves right-to-left support, and includes a round of sharing, export, and reliability fixes.
MORE LANGUAGES
Mercury is now available in Arabic, Traditional Chinese, Korean, Portuguese, Turkish (thank you, Murat!), Finnish, Italian, Dutch, Norwegian, and Hebrew.
RIGHT-TO-LEFT SUPPORT
Added better right-to-left layout and text handling for Hebrew and Arabic.
MAP & SHARING IMPROVEMENTS
Map exports now match the preview more closely, timeline prefetching is smarter, and sharing and radar interactions are more reliable.
RELIABILITY
Improved locale refreshes and polished translations throughout the app.
Kai & Malin 3.4.5 Mar 9 This update adds 10 more languages, improves right-to-left support, and includes a round of sharing, export, and reliability fixes.
MORE LANGUAGES
Mercury is now available in Arabic, Traditional Chinese, Korean, Portuguese, Turkish, Finnish, Italian, Dutch, Norwegian, and Hebrew.
RIGHT-TO-LEFT SUPPORT
Added better right-to-left layout and text handling for Hebrew and Arabic.
MAP & SHARING IMPROVEMENTS
Map exports now match the preview more closely, timeline prefetching is smarter, and sharing and radar interactions are more reliable.
RELIABILITY
Improved locale refreshes and polished translations throughout the app.
Kai & Malin 3.4.4 Mar 6 This update adds 10 more languages, improves right-to-left support, and includes a round of sharing, export, and reliability fixes.
MORE LANGUAGES
Mercury is now available in Arabic, Traditional Chinese, Korean, Portuguese, Turkish, Finnish, Italian, Dutch, Norwegian, and Hebrew.
RIGHT-TO-LEFT SUPPORT
Added better right-to-left layout and text handling for Hebrew and Arabic.
MAP & SHARING IMPROVEMENTS
Map exports now match the preview more closely, timeline prefetching is smarter, and sharing and radar interactions are more reliable.
RELIABILITY
Improved locale refreshes and polished translations throughout the app.
Kai & Malin 3.4.3 Mar 6 This update improves map sharing, adds a cloud coverage forecast to the weather map, adds Japanese localization, and includes a handful of fixes.
MAP SHARING IMPROVEMENTS
Sharing hurricane, storm, and radar maps is faster and more reliable, with sharper exports and a new storm‑only option.
CLOUD COVERAGE FORECAST
The weather map now includes a cloud coverage forecast layer.
JAPANESE LOCALIZATION
Mercury is now available in Japanese.
FIXES
Improved tide fetch reliability and fixed a rare hang when switching weather sources, plus a few small widget and localization fixes.
Kai & Malin 3.4.2 Feb 24 This update improves map sharing, adds a cloud coverage forecast to the weather map, adds Japanese localization, and includes a handful of fixes.
MAP SHARING IMPROVEMENTS
Sharing hurricane, storm, and radar maps is faster and more reliable, with sharper exports and a new storm‑only option.
CLOUD COVERAGE FORECAST
The weather map now includes a cloud coverage forecast layer.
JAPANESE LOCALIZATION
Mercury is now available in Japanese.
FIXES
Improved tide fetch reliability and fixed a rare hang when switching weather sources, plus a few small widget and localization fixes.
Kai & Malin 3.4.1 Feb 21 This update improves map sharing, adds a cloud coverage forecast to the weather map, adds Japanese localization, and includes a handful of fixes.
MAP SHARING IMPROVEMENTS
Sharing hurricane, storm, and radar maps is faster and more reliable, with sharper exports and a new storm‑only option.
CLOUD COVERAGE FORECAST
The weather map now includes a cloud coverage forecast layer.
JAPANESE LOCALIZATION
Mercury is now available in Japanese.
FIXES
Improved tide fetch reliability and fixed a rare hang when switching weather sources, plus a few small widget and localization fixes.
Kai & Malin 3.4 Feb 19 This update introduces a new Screenshot Composer for sharing hurricane and radar maps.
SHARING HURRICANE AND STORM MAPS
Share a customizable image or GIF of the weather map. Choose what to include, like the rain radar, upcoming hurricanes, and favorite location pins.
Kai & Malin 3.3 Feb 7 This update adds Shortcuts support for trips, improves snow charts, and fixes a Screenshot Composer chart issue.
SHORTCUTS
Added actions to get upcoming trips, view past trips, and add new trips.
CHARTS
Adjusted snow charts and improved chart scales for better readability.
SCREENSHOT FIXES
Fixed missing daily chart details in the Screenshot Composer on iOS 26.
Kai & Malin 3.2.1 Jan 28 This update adds Shortcuts support for trips, improves snow charts, and fixes a Screenshot Composer chart issue.
SHORTCUTS
Added actions to get upcoming trips, view past trips, and add new trips.
CHARTS
Adjusted snow charts and improved chart scales for better readability.
SCREENSHOT FIXES
Fixed missing daily chart details in the Screenshot Composer on iOS 26.
Kai & Malin 3.2 Jan 26 This update improves chart performance and fixes a couple of layout issues on iOS 26.
PERFORMANCE
Hourly and daily forecast charts are smoother, especially when resizing windows on iPadOS.
FIXES
Fixed clipping when sharing current conditions on iOS 26 and a shadow clipping issue on iOS 26.2 (thanks, Manuel).
Kai & Malin 3.1.3 Jan 5 This update improves chart performance and fixes a couple of layout issues on iOS 26.
PERFORMANCE
Hourly and daily forecast charts are smoother, especially when resizing windows on iPadOS.
FIXES
Fixed clipping when sharing current conditions on iOS 26 and a shadow clipping issue on iOS 26.2 (thanks, Manuel).
Kai & Malin 3.1.2 Jan 4 This update makes precipitation forecasts clearer and more accurate across the app and widgets.
PRECIPITATION IMPROVEMENTS
Minute and hourly forecasts now do a better job at distinguishing rain, snow, and sleet and snow charts scale more naturally.
RELIABILITY
Improved favorite location caching, a fix for deleting favorites, and a few storm tracking and other reliability improvements.
Kai & Malin 3.1.1 12/29/2025 EXPANDED STORM COVERAGE
Storm tracking now covers more parts of the world, including the Western Pacific and Indian Ocean.
Kai & Malin 3.1 12/22/2025 This time, we fixed an issue where widgets could briefly show the previous hour when set to locations with 30-minute time zone offsets. We also replaced the generic clock glyph in the hourly details bubble with one that actually shows the selected time.
New in Mercury Weather 3.0:
HURRICANE & TROPICAL STORM TRACKING
• Track hurricanes and tropical storms with real‑time positions, forecast cones, and recent tracks for the Atlantic and Pacific
• New Storm widgets show current position and storm intensity
• Configure storm widgets by basin, or follow the nearest storm. Customize map style, zoom, and past‑track length
TIDE FORECASTS
• Tide forecasts for U.S. and Canadian coastal areas with 48-hour predictions and current conditions
• Tide forecasts are automatically shown when you’re at the coast (or viewing a coastal location)
UV & AIR QUALITY
• A new 24-hour UV forecast chart, accessible from the UV label in the current weather card
• Air quality forecasts are available whenever the AQI is expected to reach moderate or higher levels
OTHER IMPROVEMENTS
• Faster radar widgets with smarter caching and better recovery on slow networks
• Cleaner widget gallery placeholders
• Fix for a rare display issue when viewing locations with an upcoming time zone change 3.0.5 11/13/2025 This time, we’ve resolved some OpenWeather data source problems and visual glitches on upcoming OS versions.
New in Mercury Weather 3.0:
HURRICANE & TROPICAL STORM TRACKING
• Track hurricanes and tropical storms with real‑time positions, forecast cones, and recent tracks for the Atlantic and Pacific
• New Storm widgets show current position and storm intensity
• Configure storm widgets by basin, or follow the nearest storm. Customize map style, zoom, and past‑track length
TIDE FORECASTS
• Tide forecasts for U.S. and Canadian coastal areas with 48-hour predictions and current conditions
• Tide forecasts are automatically shown when you’re at the coast (or viewing a coastal location)
UV & AIR QUALITY
• A new 24-hour UV forecast chart, accessible from the UV label in the current weather card
• Air quality forecasts are available whenever the AQI is expected to reach moderate or higher levels
OTHER IMPROVEMENTS
• Faster radar widgets with smarter caching and better recovery on slow networks
• Cleaner widget gallery placeholders
• Fix for a rare display issue when viewing locations with an upcoming time zone change 3.0.4 11/10/2025 This time, we've fixed text truncation issues in the top section on watchOS, fixed some scrolling issues on watchOS 26, and fixed a widget issue that could cause the iPad to show an empty state when opening a widget with the location set to “Home”.
New in Mercury Weather 3.0:
HURRICANE & TROPICAL STORM TRACKING
• Track hurricanes and tropical storms with real‑time positions, forecast cones, and recent tracks for the Atlantic and Pacific
• New Storm widgets show current position and storm intensity
• Configure storm widgets by basin, or follow the nearest storm. Customize map style, zoom, and past‑track length
TIDE FORECASTS
• Tide forecasts for U.S. and Canadian coastal areas with 48-hour predictions and current conditions
• Tide forecasts are automatically shown when you’re at the coast (or viewing a coastal location)
UV & AIR QUALITY
• A new 24-hour UV forecast chart, accessible from the UV label in the current weather card
• Air quality forecasts are available whenever the AQI is expected to reach moderate or higher levels
OTHER IMPROVEMENTS
• Faster radar widgets with smarter caching and better recovery on slow networks
• Cleaner widget gallery placeholders
• Fix for a rare display issue when viewing locations with an upcoming time zone change 3.0.2 10/17/2025 This time, we've added a new color theme for the Current Weather widget, added tide info to the top section on watchOS, and fixed an issue where incorrectly formatted storms were not handled gracefully.
New in Mercury Weather 3.0:
HURRICANE & TROPICAL STORM TRACKING
• Track hurricanes and tropical storms with real‑time positions, forecast cones, and recent tracks for the Atlantic and Pacific
• New Storm widgets show current position and storm intensity
• Configure storm widgets by basin, or follow the nearest storm. Customize map style, zoom, and past‑track length
TIDE FORECASTS
• Tide forecasts for U.S. and Canadian coastal areas with 48-hour predictions and current conditions
• Tide forecasts are automatically shown when you’re at the coast (or viewing a coastal location)
UV & AIR QUALITY
• A new 24-hour UV forecast chart, accessible from the UV label in the current weather card
• Air quality forecasts are available whenever the AQI is expected to reach moderate or higher levels
OTHER IMPROVEMENTS
• Faster radar widgets with smarter caching and better recovery on slow networks
• Cleaner widget gallery placeholders
• Fix for a rare display issue when viewing locations with an upcoming time zone change 3.0.1 10/09/2025 Mercury Weather 3.0 is here and brings hurricane tracking, tide forecasts, and more UV and air‑quality insights, plus a bunch of other improvements.
HURRICANE & TROPICAL STORM TRACKING
• Track hurricanes and tropical storms with real‑time positions, forecast cones, and recent tracks for the Atlantic and Pacific
• New Storm widgets show current position and storm intensity
• Configure storm widgets by basin, or follow the nearest storm. Customize map style, zoom, and past‑track length
TIDE FORECASTS
• Tide forecasts for U.S. and Canadian coastal areas with 48-hour predictions and current conditions
• Tide forecasts are automatically shown when you’re at the coast (or viewing a coastal location)
UV & AIR QUALITY
• A new 24-hour UV forecast chart, accessible from the UV label in the current weather card
• Air quality forecasts are available whenever the AQI is expected to reach moderate or higher levels
OTHER IMPROVEMENTS
• Faster radar widgets with smarter caching and better recovery on slow networks
• Cleaner widget gallery placeholders
• Fix for a rare display issue when viewing locations with an upcoming time zone change 3.0 10/02/2025 This update adds support for iOS 26, iPadOS 26 and watchOS 26!
Liquid Glass
Mercury Weather embraces the new Liquid Glass design language introduced with iOS 26 (and aligned releases), featuring fluid transitions and dynamic material layers that respond to content and context. And, of course, an updated app icon with specular highlights!
iPadOS Windowing
Full support for the new windowing system on iPadOS 26. Open multiple Mercury windows simultaneously and resize and arrange them freely. Perfect for travel planning or monitoring weather across multiple locations.
Kai & Malin 2.13.1 09/24/2025 This update adds support for iOS 26, iPadOS 26 and watchOS 26!
Liquid Glass
Mercury Weather embraces the new Liquid Glass design language introduced with iOS 26 (and aligned releases), featuring fluid transitions and dynamic material layers that respond to content and context. And, of course, an updated app icon with specular highlights!
iPadOS Windowing
Full support for the new windowing system on iPadOS 26. Open multiple Mercury windows simultaneously and resize and arrange them freely. Perfect for travel planning or monitoring weather across multiple locations.
Kai & Malin 2.13 09/12/2025
version 3.4.5
posted on 2026-03-09
This update adds 10 more languages, improves right-to-left support, and includes a round of sharing, export, and reliability fixes.
MORE LANGUAGES
Mercury is now available in Arabic, Traditional Chinese, Korean, Portuguese, Turkish (thank you, Murat!), Finnish, Italian, Dutch, Norwegian, and Hebrew.
RIGHT-TO-LEFT SUPPORT
Added better right-to-left layout and text handling for Hebrew and Arabic.
MAP & SHARING IMPROVEMENTS
Map exports now match the preview more closely, timeline prefetching is smarter, and sharing and radar interactions are more reliable.
RELIABILITY
Improved locale refreshes and polished translations throughout the app.
Kai & Malin
version 3.3
posted on 2026-02-07
This update introduces a new Screenshot Composer for sharing hurricane and radar maps.
SHARING HURRICANE AND STORM MAPS
Share a customizable image or GIF of the weather map. Choose what to include, like the rain radar, upcoming hurricanes, and favorite location pins.
Kai & Malin
version 2.13.1
posted on 2025-09-24
Sep 24, 2025
Version 2.13.1
This update adds support for macOS 26!
Liquid Glass
Mercury Weather embraces the new Liquid Glass design language introduced with macOS 26, featuring fluid transitions and dynamic material layers that respond to content and context. And, of course, an updated app icon with specular highlights!
More Keyboard Shortcuts
You can now move through the radar timeline in the map view with the left and right arrow keys and pause and resume playback with the space bar.
Kai & Malin
Disclaimer
Official App Store Link
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