Portland Rainfall ForecastUnited StatesWIDodge CountyPortlandToday 17 Apr50%Fri 18 Apr55%Sat 19 Apr45%Sun 20 Apr50%Mon 21 Apr80%Tue 22 Apr30%Wed 23 Apr40%Portland rainfall forecast issued today at 2:04 pm. Next forecast at approx. 4:04 am.1-Day3-Day5-Day Graph Plots Open in Graphs Rainfall Probability Forecast NOAA Rain Today Real-Time Milwaukee RadarNational SatelliteNational SynopticGet WillyWeather+ to remove ads