Castle Rock State Park Entrance Weather Forecast

    • 47
    • 57

    Mostly Sunny

    • 45
    • 62

    Mostly Sunny

    • 46
    • 63

    Partly Sunny

    • 43
    • 55

    Partly Sunny

    • 46
    • 58

    Mostly Sunny

    • 48
    • 63

    Partly Sunny

Today 4 Apr Santa Cruz Mountains

Sunny. Highs in the 50s to upper 60s. North Winds 5 to 10 Mph.

Tonight 4 Apr Santa Cruz Mountains

Mostly clear in the evening then becoming partly cloudy. Lows in the mid 40s. Northwest Winds 5 to 10 Mph.

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  • Temperature Real-Time

Castle Rock State Park Entrance Temperature Statistics

April Temperature

San Jose, San Jose International Airport (12.4 miles)

  • Lowest 1 April, 2025

    46 °F

  • Average April

    50.3 °F

  • Highest 1 April, 2025

    55.9 °F

Climate (2020–Present)

San Jose, San Jose International Airport (12.4 miles)

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  • Average Low 2020–2025

    51.9 °F

  • Average 2020–2025

    61.6 °F

  • Average High 2020–2025

    72.7 °F
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