Peterson Lake Rainfall ForecastUnited StatesMTRavalli CountyPeterson LakeToday 19 Apr15%Sun 20 Apr55%Mon 21 Apr80%Tue 22 Apr15%Wed 23 Apr15%Thu 24 Apr20%Fri 25 Apr35%Peterson Lake rainfall forecast issued today at 2:04 am. Next forecast at approx. 4:04 pm.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