Haleakala National Park Rainfall ForecastUnited StatesHIMauiHaleakala National ParkToday 19 Apr70%Sun 20 Apr60%Mon 21 Apr50%Tue 22 Apr40%Wed 23 Apr30%Thu 24 Apr25%Fri 25 Apr15%Haleakala National Park rainfall forecast issued today at 11:04 am. Next forecast at approx. 1:04 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