40 Below
40 Below app icon

40 Below

Local Temperature in °F & °C

40 Below product family on iPhone, iPad, and Mac

See the temperature where you are in Fahrenheit and Celsius, check the hourly forecast, and share a clean temperature card in seconds.

40 Below was designed and built around one central purpose: to show you the current outdoor temperature in both Fahrenheit and Celsius. Many of us have friends, family, and co-workers who live in other countries, and even the simplest weather chat can get awkward when those relationships cross the F/C divide. 40 Below cuts through that. With its prominent temperature reading front and centre, you're always moments away from being able to tell someone what the weather is like in the temperature scale they'll understand.

Travellers, international teams, expats, and mixed-unit households alike will all find this compact weather app genuinely useful.

Additional thoughtful features:

  • See the “feels like” temperature in both °F and °C
  • Check the temperature forecast for the next few hours so you can plan your day
  • Share a beautifully rendered temperature card with or without your location

40 Below uses your location to show local conditions. You can control location access at any time in Settings.

What's New in Version 2.0

Thank you to everyone who has used and shared feedback on 40 Below! It has been a lot of fun building this little app, and this version includes some genuinely fun additions and improvements. The headline feature, though, has to be Siri support.

With this update, 40 Below now has full Siri and Siri Shortcuts support. That means you can ask Siri, "What's the temperature in 40 Below?" and it will helpfully tell you the temperature in both Fahrenheit and Celsius for your current location. This works when you have AirPods in and when your phone is connected to CarPlay. If you ask Siri, "Show me the weather in 40 Below," it will present a beautiful view right on the screen without needing to open the app. On top of that, these features are scriptable. The Shortcuts app exposes them so you can use them in your own Shortcuts.

40 Below rarely asks for a review, so if you've found it useful and you have a moment, a rating or review would be greatly appreciated.

NEW

  • Added new Siri Shortcuts and improved action support for Shortcuts and Siri.
  • Added a Siri forecast card.
  • Added a daily forecast view alongside the hourly forecast.
  • Added the ability to email support; check out the About sheet on iOS.

IMPROVED

  • Fixed an issue where the forecast drag handle could respond to taps but not actual dragging.
  • Improved reliability around location and weather refreshes.
  • Improved loading behaviour so progress stays visible until temperature and location details are fully updated.

FIXED

  • Adjusted App Store links to fix an issue where the App Store was reporting 40 Below as "not available" in certain regions.
  • Fixed an issue where temperatures might not update correctly after changing locations.
  • Reduced unhelpful location error messages.