South Santee River - Drum Islands Rainfall ForecastUnited StatesSCCharleston CountySouth Santee River - Drum IslandsToday 19 AprNo RainSun 20 AprNo RainMon 21 AprNo RainTue 22 Apr5%Wed 23 Apr25%Thu 24 Apr30%Fri 25 Apr20%South Santee River - Drum Islands 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 Wilmington RadarNational SatelliteNational SynopticGet WillyWeather+ to remove ads