Thornewood Open Space Preserve Weather Forecast

    • 67
    • 98

    Mostly Sunny

    • 58
    • 89

    Mostly Sunny

    • 54
    • 80

    Mostly Sunny

    • 53
    • 71

    Sunny

    • 52
    • 76

    Mostly Sunny

    • 53
    • 78

    Mostly Sunny

    • 53
    • 71

    Mostly Sunny

Today 9 Sep Santa Cruz Mountains

Partly cloudy late in the morning then becoming sunny. Highs in the 80s to upper 90s. Light Winds. Becoming north around 5 Mph in the afternoon.

Tonight 9 Sep Santa Cruz Mountains

Mostly clear. Lows in the 60s to mid 70s. North Winds around 5 Mph in the evening. Becoming light.

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Thornewood Open Space Preserve Temperature Statistics

September Temperature

San Carlos Airport (8.7 miles)

  • Lowest 7 September, 2026

    53.6 °F

  • Average September

    63.5 °F

  • Highest 7 September, 2026

    84.2 °F

Climate (2021–2026)

San Carlos Airport (8.7 miles)

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  • Average Low 2021–2026

    51.8 °F

  • Average 2021–2026

    57 °F

  • Average High 2021–2026

    68.3 °F
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