Williams Airpatch Airport Rainfall ForecastUnited StatesWASnohomish CountyWilliams Airpatch AirportToday 19 Apr50%Sun 20 Apr90%Mon 21 Apr45%Tue 22 AprNo RainWed 23 Apr5%Thu 24 Apr20%Fri 25 Apr35%Williams Airpatch Airport 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 Seattle RadarNational SatelliteNational SynopticGet WillyWeather+ to remove ads