Walnut Creek Weather Forecast

    • 63
    • 91

    Sunny

    • 60
    • 83

    Mostly Sunny

    • 57
    • 77

    Mostly Sunny

    • 57
    • 81

    Mostly Sunny

    • 57
    • 85

    Sunny

    • 60
    • 92

    Sunny

Today 15 Aug East Bay Interior Valleys

Sunny. Highs in the upper 80s to mid 90s. West Winds 5 to 10 Mph increasing to 10 to 20 Mph in the afternoon.

Tonight 15 Aug East Bay Interior Valleys

Mostly clear. Lows in the mid 60s. Southwest Winds 10 to 20 Mph.

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Walnut Creek Temperature Statistics

August Temperature

Concord, Buchanan Field (5.6 miles)

  • Lowest 2 August, 2025

    56.6 °F

  • Average August

    72.2 °F

  • Highest 8 August, 2025

    99.6 °F

Climate (2020–Present)

Concord, Buchanan Field (5.6 miles)

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  • Average Low 2020–2025

    50.8 °F

  • Average 2020–2025

    61.4 °F

  • Average High 2020–2025

    74.6 °F
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