Hillsborough Weather Forecast

    • 54
    • 73

    Mostly Sunny

    • 54
    • 72

    Mostly Sunny

    • 55
    • 77

    Mostly Sunny

    • 55
    • 87

    Mostly Sunny

    • 55
    • 82

    Mostly Sunny

    • 56
    • 79

    Partly Sunny

Today 18 Aug San Francisco Bay Shoreline

Partly cloudy in the morning then becoming sunny. Highs in the 70s. West Winds 5 to 10 Mph increasing to 10 to 20 Mph in the afternoon.

Tonight 18 Aug San Francisco Bay Shoreline

Mostly clear. Lows in the upper 50s. West Winds 10 to 20 Mph. Becoming 5 to 10 Mph after midnight.

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Hillsborough Temperature Statistics

August Temperature

San Francisco, San Francisco International Airport (3.1 miles)

  • Lowest 2 August, 2025

    56.6 °F

  • Average August

    63.2 °F

  • Highest 6 August, 2025

    81.6 °F

Climate (2020–Present)

San Francisco, San Francisco International Airport (3.1 miles)

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  • Average Low 2020–2025

    52.2 °F

  • Average 2020–2025

    58.3 °F

  • Average High 2020–2025

    66.6 °F
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