Ashley River - Duck Island Rainfall ForecastUnited StatesSCCharleston CountyAshley River - Duck IslandToday 19 AprNo RainSun 20 AprNo RainMon 21 AprNo RainTue 22 Apr5%Wed 23 Apr25%Thu 24 Apr30%Fri 25 Apr20%Ashley River - Duck Island rainfall forecast issued today at 9:08 am. Next forecast at approx. 11:08 pm.1-Day3-Day5-Day Graph Plots Open in Graphs Rainfall Probability Forecast NOAA Rain Today Real-Time Charleston RadarNational SatelliteNational SynopticGet WillyWeather+ to remove ads