Lower Crystal Springs Reservoir Weather Forecast

    • 53
    • 71

    Mostly Sunny

    • 55
    • 78

    Mostly Sunny

    • 54
    • 76

    Partly Sunny

    • 55
    • 73

    Partly Sunny

    • 55
    • 72

    Partly Sunny

    • 54
    • 71

    Partly Sunny

    • 54
    • 71

    Partly Sunny

Today 19 Aug San Francisco Bay Shoreline

Sunny. Highs in the 70s. West Winds 10 to 20 Mph.

Tonight 19 Aug San Francisco Bay Shoreline

Mostly clear late in the evening then becoming partly cloudy. Lows in the upper 50s. West Winds 5 to 15 Mph.

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  • Temperature Real-Time

Lower Crystal Springs Reservoir Temperature Statistics

August Temperature

San Francisco, San Francisco International Airport (6.2 miles)

  • Lowest 2 August, 2025

    56.6 °F

  • Average August

    63.3 °F

  • Highest 6 August, 2025

    81.6 °F

Climate (2020–Present)

San Francisco, San Francisco International Airport (6.2 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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