Copalis State Airport Rainfall ForecastUnited StatesWAGrays Harbor CountyCopalis State AirportToday 16 AprNo RainThu 17 AprNo RainFri 18 Apr10%Sat 19 Apr10%Sun 20 Apr40%Mon 21 Apr10%Tue 22 Apr5%Copalis State Airport rainfall forecast issued today at 10:04 am. Next forecast at approx. 12:04 am.1-Day3-Day5-Day Graph Plots Open in Graphs Rainfall Probability Forecast NOAA Rain Today Real-Time Langley Hill RadarNational SatelliteNational SynopticGet WillyWeather+ to remove ads