Northwest Snohomish Rainfall ForecastUnited StatesWASnohomish CountyNorthwest SnohomishToday 19 Apr40%Sun 20 Apr75%Mon 21 Apr30%Tue 22 AprNo RainWed 23 Apr5%Thu 24 Apr20%Fri 25 Apr35%Northwest Snohomish rainfall forecast issued today at 3:04 pm. Next forecast at approx. 5:04 am.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