Keystone Rainfall ForecastUnited StatesIABenton CountyKeystoneToday 19 Apr30%Sun 20 Apr95%Mon 21 Apr95%Tue 22 Apr50%Wed 23 Apr25%Thu 24 Apr60%Fri 25 Apr55%Keystone rainfall forecast issued today at 6:04 pm. Next forecast at approx. 8:04 am.1-Day3-Day5-Day Graph Plots Open in Graphs Rainfall Probability Forecast NOAA Rain Today Real-Time Des Moines RadarNational SatelliteNational SynopticGet WillyWeather+ to remove ads