Chino Hills State Park Rainfall ForecastUnited StatesCASan Bernardino CountyChino Hills State ParkToday 19 AprNo RainSun 20 AprNo RainMon 21 AprNo RainTue 22 AprNo RainWed 23 AprNo RainThu 24 AprNo RainFri 25 AprNo RainChino Hills State Park 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 Santa Ana Mountains RadarNational SatelliteNational SynopticGet WillyWeather+ to remove ads