Or use MeeCast for SailfishOS with Meecast Event View and Meecast Daemon, which are Free Software (in contrast to Foreca's / Jolla's "Weather" app) and offers many weather data providers (among them Foreca and Weather.com, the latter providing the best forecast, IMO).
Meecast Event View would not install. Meecast Daemon installs but besides making the phone blink every 5 secs while in use is useless. The good news is MeeCast works