St John Rainfall ForecastUnited StatesWICalumet CountySt JohnToday 18 Apr85%Sat 19 Apr60%Sun 20 Apr30%Mon 21 Apr90%Tue 22 Apr15%Wed 23 Apr45%Thu 24 Apr25%St John 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