Porcupine Mountains Rainfall ForecastUnited StatesMIOntonagon CountyPorcupine MountainsToday 21 Apr100%Tue 22 Apr20%Wed 23 Apr25%Thu 24 Apr35%Fri 25 Apr65%Sat 26 Apr10%Sun 27 Apr10%Porcupine Mountains 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 Marquette RadarNational SatelliteNational SynopticGet WillyWeather+ to remove ads