Folsom Lake Rainfall ForecastUnited StatesWIPolk CountyFolsom LakeToday 17 Apr80%Fri 18 Apr95%Sat 19 Apr15%Sun 20 Apr25%Mon 21 Apr45%Tue 22 Apr35%Wed 23 Apr35%Folsom Lake rainfall forecast issued today at 8:08 am. Next forecast at approx. 10:08 pm.1-Day3-Day5-Day Graph Plots Open in Graphs Rainfall Probability Forecast NOAA Rain Today Real-Time Minneapolis RadarNational SatelliteNational SynopticGet WillyWeather+ to remove ads