Ontario County Park Rainfall ForecastUnited StatesNYOntario CountyOntario County ParkToday 19 Apr80%Sun 20 Apr30%Mon 21 Apr50%Tue 22 Apr50%Wed 23 Apr15%Thu 24 Apr15%Fri 25 Apr30%Ontario County Park rainfall forecast issued today at 8:04 am. Next forecast at approx. 10:04 pm.1-Day3-Day5-Day Graph Plots Open in Graphs Rainfall Probability Forecast NOAA Rain Today Real-Time Buffalo RadarNational SatelliteNational SynopticGet WillyWeather+ to remove ads