Fahrenheit/Celsius
or Celsius/Fahrenheit
American abroad? Foreigner visiting America? Or just want your weather in a different language than your phone's default? Fahrenheit Celsius Dual Degree is the cross-border weather app.
Download on the App StoreForecasts powered by Apple WeatherKit and Open-Meteo.
Support
Have a question, found a bug, want to suggest a feature? Email support@motomatic.com. A real human reads every message.
Please include your iOS version and the app version (Settings → About) so we can reproduce.
FAQ
Why show both scales at the same time?
If you grew up with one scale and live with the other, you spend a small bit of mental energy converting every time you check the weather. Fahrenheit Celsius Dual Degree removes that step entirely.
Is the app free?
Yes. Seven-day forecasts, two saved cities, the main widget, and basic air quality are free and ad-free. Dual Degree Plus adds 15-day forecasts, unlimited saved cities, advanced widgets, detailed air quality, and rain and lightning notifications. In the U.S., Plus is $39.99 USD lifetime, $14.99 USD per year with a 7-day free trial for eligible new subscribers, or $1.99 USD per month. App Store prices may vary by country.
Where does the data come from?
Open-Meteo drives temperature, conditions, and forecasts, with Apple WeatherKit as the backup source and the provider of severe weather alerts and minute-by-minute precipitation. Lightning detections come from NOAA's GOES Geostationary Lightning Mapper.
When does the Lightning card show up?
When at least one strike has landed within 50 km of the selected city in the last 30 minutes. The card shows the closest strike and the count for the window. Tap the corner bolt for a full-screen map of every recent strike, with coordinates, address, and a one-tap handoff to Google Maps or Apple Maps. Coverage today is the Americas and adjacent oceans, sourced from NOAA's GOES satellite lightning data.
Does it work outside the United States?
Yes. Forecasts, current conditions, and air quality are global. Severe weather alerts and minute-by-minute precipitation come from Apple WeatherKit, so they appear only where Apple offers them; elsewhere, next-hour precipitation uses Open-Meteo's 15-minute forecast. Lightning coverage is currently the Americas and adjacent oceans.
What languages does the app support?
Thirteen: English, Spanish, German, French, Italian, Portuguese, Japanese, Korean, Simplified Chinese, Traditional Chinese, Greek, Russian, and Ukrainian. The app follows your iOS language by default; you can override it inside the app.
My current location is wrong or the weather isn't updating.
First, pull-to-refresh on the main screen. If that doesn't help, check that Location Services is enabled for Fahrenheit Celsius Dual Degree in iOS Settings → Privacy & Security → Location Services. For widgets, removing and re-adding the widget often unsticks a stale timeline.
I paid for Dual Degree before Plus. Do I need to pay again?
No. If you paid to download Dual Degree while it was a paid app, Plus is included permanently. Downloads from the earlier free period remain on the Free plan. If Plus does not appear, open Settings → Dual Degree Plus and tap Restore Purchases, or email support.
Is there an Android version?
Not yet. iOS first.