Waimanu Bay Rainfall ForecastUnited StatesHIHawaiiWaimanu BayToday 18 Apr65%Sat 19 Apr60%Sun 20 Apr65%Mon 21 Apr65%Tue 22 Apr60%Wed 23 Apr45%Thu 24 Apr45%Waimanu Bay 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 Kohala RadarNational SatelliteNational SynopticGet WillyWeather+ to remove ads