Forecastie https://f-droid.org/en/packages/cz.martykan.forecastie/

https://github.com/breezy-weather/breezy-weather There is a newer fork for geometric weather if you want to check it out. As geometric is not being maintained.

geometric weather is my go to weather app and it’s available on fdroid

Prognoza

There is a fork of abandoned Geometric Weather.

Breezy Weather: https://github.com/breezy-weather/breezy-weather

Breezy weather is actively maintained fork of geometric weather which is abandoned.

I like this one: https://f-droid.org/en/packages/org.woheller69.omweather/

I use weather rock!