I don’t know about apps, but they ultimately all get it from the National Weather Service. Since it’s a government service, the website is totally free of ads and other garbage. Just use that. Weather.gov. You can search for your home, and since it uses absolute URLs, you can then bookmark the results page and just go straight to that every time.
You can wishlist it on Steam! The developer says he has been playtesting it on the Deck, too.