Koester Reservoir Rainfall ForecastUnited StatesNEThayer CountyKoester ReservoirToday 19 Apr5%Sun 20 Apr95%Mon 21 Apr35%Tue 22 Apr20%Wed 23 Apr50%Thu 24 Apr70%Fri 25 Apr60%Koester Reservoir rainfall forecast issued today at 4:04 am. Next forecast at approx. 6:04 pm.1-Day3-Day5-Day Graph Plots Open in Graphs Rainfall Probability Forecast NOAA Rain Today Real-Time Hastings RadarNational SatelliteNational SynopticGet WillyWeather+ to remove ads