Potholes State Park Rainfall ForecastUnited StatesWAGrant CountyPotholes State ParkToday 19 Apr20%Sun 20 AprNo RainMon 21 AprNo RainTue 22 AprNo RainWed 23 AprNo RainThu 24 Apr5%Fri 25 Apr10%Potholes State Park rainfall forecast issued today at 2:04 am. Next forecast at approx. 4:04 pm.1-Day3-Day5-Day Graph Plots Open in Graphs Rainfall Probability Forecast NOAA Rain Today Real-Time Pendleton RadarNational SatelliteNational SynopticGet WillyWeather+ to remove ads