Steptoe Butte State Park Rainfall ForecastUnited StatesWAWhitman CountySteptoe Butte State ParkToday 19 Apr20%Sun 20 Apr30%Mon 21 Apr30%Tue 22 AprNo RainWed 23 Apr5%Thu 24 Apr10%Fri 25 Apr20%Steptoe Butte State Park 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 Spokane RadarNational SatelliteNational SynopticGet WillyWeather+ to remove ads