Summit Reservoir Weather Forecast

    • 58
    • 79

    Mostly Sunny

    • 57
    • 72

    Partly Sunny

    • 57
    • 70

    Mostly Cloudy

    • 57
    • 69

    Mostly Cloudy

    • 56
    • 67

    Mostly Cloudy

    • 57
    • 67

    Partly Sunny

Today 1 Sep San Francisco Bay Shoreline

Sunny. Highs in the 70s to upper 80s. Northwest Winds 5 to 10 Mph increasing to 10 to 20 Mph in the afternoon.

Tonight 1 Sep San Francisco Bay Shoreline

Mostly clear. Lows in the lower 60s. West Winds 10 to 20 Mph. Becoming 5 to 10 Mph after midnight.

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Summit Reservoir Temperature Statistics

September Temperature

Oakland, Metro Oakland International Airport (13 miles)

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  • Average September

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Climate (2020–Present)

Oakland, Metro Oakland International Airport (13 miles)

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  • Average Low 2020–2025

    51 °F

  • Average 2020–2025

    58.7 °F

  • Average High 2020–2025

    67.2 °F
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