Kupapau Point Rainfall ForecastUnited StatesHIHawaiiKupapau PointToday 19 Apr45%Sun 20 Apr60%Mon 21 Apr65%Tue 22 Apr40%Wed 23 Apr35%Thu 24 Apr30%Fri 25 Apr30%Kupapau Point rainfall forecast issued today at 12:04 pm. Next forecast at approx. 2:04 am.1-Day3-Day5-Day Graph Plots Open in Graphs Rainfall Probability Forecast NOAA Rain Today Real-Time South Shore RadarNational SatelliteNational SynopticGet WillyWeather+ to remove ads