Castle Rock State Park Entrance Rainfall ForecastUnited StatesCASanta Cruz CountyCastle Rock State Park EntranceToday 18 Apr10%Sat 19 AprNo RainSun 20 AprNo RainMon 21 AprNo RainTue 22 AprNo RainWed 23 AprNo RainThu 24 AprNo RainCastle Rock State Park Entrance 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 San Francisco RadarNational SatelliteNational SynopticGet WillyWeather+ to remove ads