South Santee River Mouth Rainfall ForecastUnited StatesSCCharleston CountySouth Santee River MouthToday 19 AprNo RainSun 20 AprNo RainMon 21 AprNo RainTue 22 Apr5%Wed 23 Apr25%Thu 24 Apr20%Fri 25 Apr10%South Santee River Mouth 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 Wilmington RadarNational SatelliteNational SynopticGet WillyWeather+ to remove ads