Hillsborough Heights Weather Forecast

    • 60
    • 76

    Chance Rain Showers

    • 59
    • 78

    Slight Chance Rain Showers

    • 58
    • 79

    Mostly Sunny

    • 59
    • 80

    Mostly Sunny

    • 60
    • 86

    Mostly Sunny

    • 61
    • 81

    Slight Chance Rain Showers

    • 59
    • 78

    Partly Sunny

Today 18 Sep San Francisco Bay Shoreline

Mostly cloudy. A slight chance of Showers and isolated Thunderstorms. Highs in the mid 70s to lower 80s. West Winds 5 to 15 Mph.

Tonight 18 Sep San Francisco Bay Shoreline

Mostly cloudy. Isolated Thunderstorms in the evening. A chance of Showers. Lows in the mid 60s. West Winds 10 to 15 Mph. Becoming northwest around 5 Mph after midnight.

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Hillsborough Heights Temperature Statistics

September Temperature

San Francisco, San Francisco International Airport (3.7 miles)

  • Lowest 1 September, 2025

    57 °F

  • Average September

    65.5 °F

  • Highest 15 September, 2025

    82 °F

Climate (2020–Present)

San Francisco, San Francisco International Airport (3.7 miles)

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  • Average Low 2020–2025

    52.3 °F

  • Average 2020–2025

    58.3 °F

  • Average High 2020–2025

    66.7 °F
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