Simpson College Rainfall ForecastUnited StatesCAShasta CountySimpson CollegeToday 19 AprNo RainSun 20 AprNo RainMon 21 AprNo RainTue 22 Apr5%Wed 23 Apr5%Thu 24 Apr15%Fri 25 Apr25%Simpson College rainfall forecast issued today at 1:04 am. Next forecast at approx. 3:04 pm.1-Day3-Day5-Day Graph Plots Open in Graphs Rainfall Probability Forecast NOAA Rain Today Real-Time Beale RadarNational SatelliteNational SynopticGet WillyWeather+ to remove ads