I'm very happy with the unofficial NOAA app by graniteapps: https://play.google.com/store/apps/details?id=com.nstudio.weatherhere.free https://play.google.com/s

I'm very happy with the unofficial NOAA app by graniteapps: https://play.google.com/store/apps/details?id=com.nstudio.weatherhere.free https://play.google.com/store/apps/details?id=com.nstudio.we... It gives a graph of the % chance of rain on an hourly basis.