Square Butte Rainfall ForecastUnited StatesMTChouteau CountySquare ButteToday 19 Apr15%Sun 20 Apr50%Mon 21 Apr85%Tue 22 Apr45%Wed 23 Apr30%Thu 24 Apr30%Fri 25 Apr40%Square Butte 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 Great Falls RadarNational SatelliteNational SynopticGet WillyWeather+ to remove ads