Hillsdale Weather Forecast

    • 66
    • 96

    Mostly Sunny

    • 60
    • 85

    Decreasing Clouds

    • 58
    • 79

    Mostly Sunny

    • 57
    • 73

    Breezy

    • 56
    • 77

    Mostly Sunny

    • 57
    • 77

    Mostly Sunny

    • 57
    • 73

    Partly Sunny

Today 9 Sep San Francisco Bay Shoreline

Partly cloudy. Highs in the 90s. Northwest Winds 5 to 15 Mph.

Tonight 9 Sep San Francisco Bay Shoreline

Partly cloudy. Lows in the mid 60s to lower 70s. West Winds 10 to 15 Mph. Becoming southwest up to 5 Mph after midnight.

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  • Temperature Real-Time

Hillsdale Temperature Statistics

September Temperature

San Carlos Airport (3.1 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 (3.1 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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