Middle Sister Peak Rainfall ForecastUnited StatesIDShoshone CountyMiddle Sister PeakToday 19 Apr70%Sun 20 Apr80%Mon 21 Apr90%Tue 22 Apr20%Wed 23 Apr5%Thu 24 Apr15%Fri 25 Apr40%Middle Sister Peak rainfall forecast issued today at 4:04 pm. Next forecast at approx. 6:04 am.1-Day3-Day5-Day Graph Plots Open in Graphs Rainfall Probability Forecast NOAA Rain Today Real-Time Missoula RadarNational SatelliteNational SynopticGet WillyWeather+ to remove ads