Cimmerian Lake Rainfall ForecastUnited StatesMTStillwater CountyCimmerian LakeToday 19 Apr5%Sun 20 Apr65%Mon 21 Apr95%Tue 22 Apr55%Wed 23 Apr55%Thu 24 Apr50%Fri 25 Apr65%Cimmerian Lake rainfall forecast issued today at 4:04 am. Next forecast at approx. 6:04 pm.1-Day3-Day5-Day Graph Plots Open in Graphs Rainfall Probability Forecast NOAA Rain Today Real-Time Billings RadarNational SatelliteNational SynopticGet WillyWeather+ to remove ads