Charleston Rainfall ForecastUnited StatesARFranklin CountyCharlestonToday 16 Apr15%Thu 17 AprNo RainFri 18 Apr15%Sat 19 Apr70%Sun 20 Apr75%Mon 21 Apr40%Tue 22 Apr30%Charleston rainfall forecast issued today at 4:04 am. Next forecast at approx. 6:04 pm.1-Day3-Day5-Day Graph Plots Open in Graphs Rainfall Probability Forecast NOAA Rain Today Real-Time Fort Smith RadarNational SatelliteNational SynopticGet WillyWeather+ to remove ads