Willow River State Park Rainfall ForecastUnited StatesWISt Croix CountyWillow River State ParkToday 18 Apr95%Sat 19 Apr5%Sun 20 Apr20%Mon 21 Apr70%Tue 22 Apr35%Wed 23 Apr35%Thu 24 Apr40%Willow River State Park rainfall forecast issued today at 7:04 pm. Next forecast at approx. 9:04 am.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