Manhattan Rainfall ForecastUnited StatesKSRiley CountyManhattanToday 19 Apr35%Sun 20 Apr100%Mon 21 Apr30%Tue 22 Apr20%Wed 23 Apr65%Thu 24 Apr75%Fri 25 Apr70%Manhattan 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 Topeka RadarNational SatelliteNational SynopticGet WillyWeather+ to remove ads