If you are in the United States, you may be interested in the scientific forecaster discussions produced by your local NWS office. They provide more insight into forecast confidence and general regional dynamics. Theyre produced several times a day and are often quite fun to read.
Its amazing how far we have come in weather prediction. A few decades ago, 5-day forecasts did not exist and now we get 10-day forecasts that are reliable enough that we take it for granted.
In my experience, nothing beats getting the forecast straight from the horses mouth (NWS that is). Some companies are notorious for producing 30+ day forecasts, which cant have any meaningful levels of skill.
I never understood why NOAA/NWS didnt just create their own mobile app. I use Wx[0], which parses NWS data directly and can be found on f-droid.