Rancho San Antonio Open Space Preserve Weather Forecast

    • 44
    • 61

    Mostly Sunny

    • 45
    • 62

    Mostly Sunny

    • 45
    • 64

    Partly Sunny

    • 46
    • 64

    Mostly Sunny

    • 47
    • 65

    Partly Sunny

    • 47
    • 66

    Partly Sunny

Today 5 Dec Santa Cruz Mountains

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

Tonight 5 Dec Santa Cruz Mountains

Clear. Lows in the mid 40s. North Winds 5 to 15 Mph.

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Rancho San Antonio Open Space Preserve Temperature Statistics

December Temperature

Palo Alto Airport (8.7 miles)

  • Lowest 2 December, 2025

    41 °F

  • Average December

    51.9 °F

  • Highest 3 December, 2025

    64.4 °F

Climate (2020–Present)

Palo Alto Airport (8.7 miles)

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  • Average Low 2020–2025

    50.8 °F

  • Average 2020–2025

    60.3 °F

  • Average High 2020–2025

    67.1 °F
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