Rancho San Antonio Open Space Preserve Weather Forecast

    • 53
    • 73

    Mostly Sunny

    • 52
    • 76

    Partly Sunny

    • 53
    • 81

    Mostly Sunny

    • 54
    • 82

    Partly Sunny

    • 53
    • 78

    Partly Sunny

    • 55
    • 81

    Mostly Sunny

Today 16 Sep Santa Cruz Mountains

Mostly cloudy in the morning then becoming partly cloudy. Patchy fog in the morning. Highs in the 60s to lower 70s. Southwest Winds 5 to 10 Mph.

Tonight 16 Sep Santa Cruz Mountains

Partly cloudy in the evening then becoming mostly cloudy. A slight chance of drizzle after midnight. Lows in the mid 50s. Southwest Winds up to 5 Mph.

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Rancho San Antonio Open Space Preserve Temperature Statistics

September Temperature

Palo Alto Airport (8.7 miles)

  • Lowest 6 September, 2026

    51.8 °F

  • Average September

    70 °F

  • Highest 9 September, 2026

    93.2 °F

Climate (2021–2026)

Palo Alto Airport (8.7 miles)

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  • Average Low 2021–2026

    51.2 °F

  • Average 2021–2026

    60.7 °F

  • Average High 2021–2026

    67.4 °F
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