Thornewood Open Space Preserve Weather Forecast

    • 43
    • 58

    Becoming Sunny

    • 46
    • 62

    Mostly Sunny

    • 46
    • 61

    Mostly Sunny

    • 46
    • 62

    Partly Sunny

    • 46
    • 63

    Partly Sunny

    • 47
    • 64

    Partly Sunny

    • 48
    • 65

    Partly Sunny

Today 4 Dec Santa Cruz Mountains

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

Tonight 4 Dec Santa Cruz Mountains

Mostly clear. Lows in the mid 40s. North Winds 5 to 10 Mph.

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Thornewood Open Space Preserve Temperature Statistics

December Temperature

San Carlos Airport (8.7 miles)

  • Lowest 1 December, 2025

    44.6 °F

  • Average December

    48.2 °F

  • Highest 2 December, 2025

    60.8 °F

Climate (2020–Present)

San Carlos Airport (8.7 miles)

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  • Average Low 2020–2025

    51.3 °F

  • Average 2020–2025

    56.6 °F

  • Average High 2020–2025

    68.1 °F
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