Jack London State Historic Park Weather Forecast

    • 57
    • 89

    Mostly Sunny

    • 55
    • 92

    Partly Sunny

    • 53
    • 85

    Partly Sunny

    • 53
    • 85

    Partly Sunny

    • 56
    • 89

    Partly Sunny

    • 56
    • 90

    Mostly Sunny

Today 22 Aug North Bay Interior Valleys

Sunny. Highs in the mid 70s to lower 90s. Southwest Winds 5 to 10 Mph increasing to 10 to 20 Mph in the afternoon.

Tonight 22 Aug North Bay Interior Valleys

Mostly clear in the evening then becoming partly cloudy. Lows in the 50s. West Winds 10 to 20 Mph. Becoming southwest 5 to 10 Mph after midnight.

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Jack London State Historic Park Temperature Statistics

August Temperature

Petaluma Municipal Airport (6.8 miles)

  • Lowest 10 August, 2026

    46.4 °F

  • Average August

    62.7 °F

  • Highest 2 August, 2026

    93.2 °F

Climate (2021–2026)

Petaluma Municipal Airport (6.8 miles)

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  • Average Low 2021–2026

    44.7 °F

  • Average 2021–2026

    55.2 °F

  • Average High 2021–2026

    68.5 °F
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