Boulder River Wilderness Rainfall ForecastUnited StatesWASnohomish CountyBoulder River WildernessToday 19 Apr60%Sun 20 Apr90%Mon 21 Apr55%Tue 22 Apr5%Wed 23 Apr10%Thu 24 Apr25%Fri 25 Apr40%Boulder River Wilderness 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