Opihikao Rainfall ForecastUnited StatesHIHawaiiOpihikaoToday 21 Apr45%Tue 22 Apr40%Wed 23 Apr30%Thu 24 Apr30%Fri 25 Apr30%Sat 26 Apr50%Sun 27 Apr50%Opihikao rainfall forecast issued today at 2:04 am. Next forecast at approx. 4:04 pm.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