West Branch Cooper River - Old Rice Mill Rainfall ForecastUnited StatesSCBerkeley CountyWest Branch Cooper River - Old Rice MillToday 21 AprNo RainTue 22 Apr10%Wed 23 Apr50%Thu 24 Apr40%Fri 25 Apr20%Sat 26 Apr25%Sun 27 Apr30%West Branch Cooper River - Old Rice Mill rainfall forecast issued today at 4:04 pm. Next forecast at approx. 6:04 am.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