Olathe Rainfall ForecastUnited StatesKSJohnson CountyOlatheToday 19 Apr70%Sun 20 Apr100%Mon 21 Apr50%Tue 22 Apr25%Wed 23 Apr50%Thu 24 Apr55%Fri 25 Apr60%Olathe rainfall forecast issued today at 8:08 am. Next forecast at approx. 10:08 pm.1-Day3-Day5-Day Graph Plots Open in Graphs Rainfall Probability Forecast NOAA Rain Today Real-Time Kansas City/Pleasant Hill RadarNational SatelliteNational SynopticGet WillyWeather+ to remove ads