Helena Rainfall ForecastUnited StatesILLawrence CountyHelenaToday 18 Apr15%Sat 19 Apr90%Sun 20 Apr70%Mon 21 Apr75%Tue 22 Apr5%Wed 23 Apr10%Thu 24 Apr40%Helena 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 Evansville RadarNational SatelliteNational SynopticGet WillyWeather+ to remove ads