Summer Lake Weather Forecast

    • 51
    • 79

    Mostly Sunny

    • 52
    • 76

    Mostly Sunny

    • 53
    • 75

    Mostly Sunny

    • 55
    • 79

    Mostly Sunny

    • 54
    • 80

    Mostly Sunny

    • 54
    • 79

    Mostly Sunny

    • 52
    • 81

    Sunny

Today 24 May East Bay Interior Valleys

Sunny. Highs in the 70s to lower 80s. West Winds 15 to 20 Mph.

Tonight 24 May East Bay Interior Valleys

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

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Summer Lake Temperature Statistics

May Temperature

Livermore, Livermore Municipal Airport (22.4 miles)

  • Lowest 14 May, 2026

    47.6 °F

  • Average May

    65.2 °F

  • Highest 21 May, 2026

    92.6 °F

Climate (2021–Present)

Livermore, Livermore Municipal Airport (22.4 miles)

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  • Average Low 2021–2026

    49 °F

  • Average 2021–2026

    60.9 °F

  • Average High 2021–2026

    74.2 °F
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