Northwest Olympia Rainfall ForecastUnited StatesWAThurston CountyNorthwest OlympiaToday 16 AprNo RainThu 17 AprNo RainFri 18 Apr5%Sat 19 Apr20%Sun 20 Apr50%Mon 21 Apr15%Tue 22 Apr5%Northwest Olympia rainfall forecast issued today at 7:03 pm. Next forecast at approx. 9:03 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