Mason Lake Rainfall ForecastUnited StatesWASpokane CountyMason LakeToday 19 Apr60%Sun 20 Apr15%Mon 21 Apr25%Tue 22 AprNo RainWed 23 AprNo RainThu 24 Apr10%Fri 25 Apr20%Mason Lake rainfall forecast issued today at 3:04 am. Next forecast at approx. 5:04 pm.1-Day3-Day5-Day Graph Plots Open in Graphs Rainfall Probability Forecast NOAA Rain Today Real-Time Spokane RadarNational SatelliteNational SynopticGet WillyWeather+ to remove ads