Castle Rock State Park Weather Forecast
- 44
- 55
Mostly Cloudy
- 44
- 55
Chance Rain
- 46
- 55
Chance Rain
- 44
- 56
Partly Sunny
- 48
- 66
Mostly Sunny
- 49
- 70
Partly Sunny
Today 24 Apr Santa Cruz Mountains
Mostly cloudy. Patchy fog in the morning. Highs in the 50s to lower 60s. West Winds 5 to 10 Mph.
Tonight 24 Apr Santa Cruz Mountains
Cloudy. Lows in the lower 40s. Northwest Winds 5 to 10 Mph.
Castle Rock State Park Temperature Statistics
April Temperature
San Jose, San Jose International Airport (13.7 miles)
Lowest 3 April, 2025
40.6 °FAverage April
59.9 °FHighest 13 April, 2025
80.7 °F
Climate (2020–Present)
San Jose, San Jose International Airport (13.7 miles)
Average Low 2020–2025
51.9 °FAverage 2020–2025
61.6 °FAverage High 2020–2025
72.8 °F