Summer Lake Weather Forecast

    • 54
    • 89

    Sunny

    • 51
    • 83

    Sunny

    • 50
    • 71

    Partly Sunny

    • 53
    • 71

    Chance Rain

    • 54
    • 72

    Slight Chance Rain

    • 52
    • 71

    Mostly Sunny

    • 49
    • 73

    Sunny

Today 17 Oct East Bay Interior Valleys

Sunny. Highs near 90. North Winds 5 to 10 Mph.

Tonight 17 Oct East Bay Interior Valleys

Clear. Lows in the mid 50s. Light Winds. Becoming south up to 5 Mph after midnight.

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Summer Lake Temperature Statistics

October Temperature

Livermore, Livermore Municipal Airport (22.4 miles)

  • Lowest 11 October, 2026

    45.6 °F

  • Average October

    72.3 °F

  • Highest 6 October, 2026

    102.7 °F

Climate (2021–2026)

Livermore, Livermore Municipal Airport (22.4 miles)

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  • Average Low 2021–2026

    49.1 °F

  • Average 2021–2026

    61.1 °F

  • Average High 2021–2026

    74.2 °F
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