Tomyhoi Lake Rainfall ForecastUnited StatesWAWhatcom CountyTomyhoi LakeToday 18 Apr30%Sat 19 Apr45%Sun 20 Apr90%Mon 21 Apr70%Tue 22 Apr10%Wed 23 Apr15%Thu 24 Apr25%Tomyhoi Lake rainfall forecast issued today at 5:04 pm. Next forecast at approx. 7:04 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