South Fork Reservoir Rainfall ForecastUnited StatesORHarney CountySouth Fork ReservoirToday 19 Apr5%Sun 20 AprNo RainMon 21 AprNo RainTue 22 Apr5%Wed 23 Apr5%Thu 24 Apr10%Fri 25 Apr25%South Fork Reservoir rainfall forecast issued today at 5:04 am. Next forecast at approx. 7:04 pm.1-Day3-Day5-Day Graph Plots Open in Graphs Rainfall Probability Forecast NOAA Rain Today Real-Time Boise RadarNational SatelliteNational SynopticGet WillyWeather+ to remove ads