Brentwood Weather Forecast

    • 57
    • 86

    Sunny

    • 58
    • 90

    Sunny

    • 64
    • 97

    Hot

    • 65
    • 106

    Hot

    • 66
    • 103

    Hot

    • 64
    • 99

    Hot

    • 64
    • 98

    Sunny

Today 18 Aug East Bay Interior Valleys

Sunny. Highs in the lower 80s. West Winds 10 to 15 Mph.

Tonight 18 Aug East Bay Interior Valleys

Clear. Lows in the mid 50s. Southwest Winds 5 to 15 Mph.

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Brentwood Temperature Statistics

August Temperature

Livermore, Livermore Municipal Airport (17.4 miles)

  • Lowest 4 August, 2025

    55.7 °F

  • Average August

    73.1 °F

  • Highest 8 August, 2025

    100.7 °F

Climate (2020–Present)

Livermore, Livermore Municipal Airport (17.4 miles)

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  • Average Low 2020–2025

    48.7 °F

  • Average 2020–2025

    60.6 °F

  • Average High 2020–2025

    74.2 °F
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