Isle of Ferns Park Rainfall ForecastUnited StatesWIMarathon CountyIsle of Ferns ParkToday 18 Apr95%Sat 19 Apr35%Sun 20 Apr20%Mon 21 Apr85%Tue 22 Apr25%Wed 23 Apr45%Thu 24 Apr25%Isle of Ferns Park rainfall forecast issued today at 8:05 pm. Next forecast at approx. 10:05 am.1-Day3-Day5-Day Graph Plots Open in Graphs Rainfall Probability Forecast NOAA Rain Today Real-Time Green Bay RadarNational SatelliteNational SynopticGet WillyWeather+ to remove ads