I Googled the Weather Home app and got page after page of hits talking about how malicious the app is. The techies stop short of calling it a virus, but it's a definitely do-not-install app. You might consider checking stuff out before you install it.
I have used Weather Underground for years - as does my son-in-law who is a pilot for one of the major airlines. It's a good, streamlined app that does not harm your phone or setup. It uses NWS data as well as other reliable sources. There are professional meteorologists involved in managing the information and WU has very accurate condition reporting and forecasts. (I have no affiliation with WU.)
Rob