Apple's new weather app is fun lately. My SO and I will sit next to each other on the couch, each with the new Apple weather app open to our town. The two instances of the app will show contradictory information. In most cases, neither instance of the app reflects what's actually going on outside. We live just outside a major city so it's not like we're in an unknown area. Needless to say, I really miss Dark Sky and mostly use the NWS mobile site now. -_-
I always have a tab open with merrysky. I really like the extra detail they show in the graph of wind/temp/precipitation and the break down of the day.
For Seattle area in particular most weather apps will show the entire week as cloudy and rainy, but there is a lot more to it and merrysky is able to surface that.
For Germany, the DWD weather app [1] is pretty great. I'm usually able to avoid specific rain moments based on their localized cloud mapping. The DWD is a federal agency. [2]
Yes, this is true. A competitor won a lawsuit against DWD. Their competition was considered unfair, as they are publicly funded. They either had to charge money or run advertisements and, against this background, opted for a one-time payment.
I don't mind the stock Android/Pixel weather app, but I have no idea why it requires pixel perfect accuracy to launch it from the stock home screen. And if there's any sort of traffic alert or reminder that displays adjacent to the weather on the home screen it usually takes me 3-5 attempts to launch the weather app. Have the flashlight on? Can't check the weather! It's been like this for as long as I can remember.
Flowx has an extremely innovative display of very fine scaled data from a wide range of US, Canadian, EU and other weather agencies (NOAA GFS, CMC GDPS, ECMHWF HIRES, CMC RDPS, CMC HRDPS, DWD ICON Global, NOAA NAM, NOAA HRR, down to 3km resolution). The UI for manipulating the data display is wonderful.
Foreca has a great at-a-glance current and forecast listing.
Rainy Days has excellent recent-to-current radar display.
Just a note that Flowx label their ECMWF forecast as "HIRES" when it's the open-data >40km resolution 6 hourly data with limited parameters and not the actual HIRES 9km resolution 1 hourly.
It gives me prediction models and large set of data sources in one platform. It's definitely more information than you need than a "weather app" but maybe you can learn thing or two while you are at it even if you are not a weather nerd...