Lower Granite State Airport Rainfall ForecastUnited StatesWAWhitman CountyLower Granite State AirportToday 19 Apr30%Sun 20 Apr50%Mon 21 Apr25%Tue 22 AprNo RainWed 23 AprNo RainThu 24 Apr10%Fri 25 Apr30%Lower Granite State Airport rainfall forecast issued today at 4:04 pm. Next forecast at approx. 6:04 am.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