Northwest Olympia Rainfall ForecastUnited StatesWAThurston CountyNorthwest OlympiaToday 17 AprNo RainFri 18 Apr10%Sat 19 Apr15%Sun 20 Apr55%Mon 21 Apr10%Tue 22 Apr5%Wed 23 Apr10%Northwest Olympia rainfall forecast issued today at 8:04 am. Next forecast at approx. 10:04 pm.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