Saint Helena Island Rainfall ForecastUnited StatesCTNew Haven CountySaint Helena IslandToday 19 Apr20%Sun 20 Apr15%Mon 21 Apr5%Tue 22 Apr45%Wed 23 Apr5%Thu 24 Apr10%Fri 25 Apr25%Saint Helena Island rainfall forecast issued today at 7:04 pm. Next forecast at approx. 9:04 am.1-Day3-Day5-Day Graph Plots Open in Graphs Rainfall Probability Forecast NOAA Rain Today Real-Time Upton RadarNational SatelliteNational SynopticGet WillyWeather+ to remove ads