Jack London State Historic Park Weather Forecast

    • 55
    • 86

    Sunny

    • 54
    • 85

    Mostly Sunny

    • 58
    • 87

    Sunny

    • 59
    • 92

    Sunny

    • 57
    • 91

    Sunny

    • 56
    • 90

    Mostly Sunny

Today 25 Jul North Bay Interior Valleys

Sunny. Highs in the mid 70s to upper 80s. West Winds 10 to 20 Mph.

Tonight 25 Jul North Bay Interior Valleys

Mostly clear. Lows in the 50s. West Winds 10 to 20 Mph.

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Jack London State Historic Park Temperature Statistics

July Temperature

Petaluma Municipal Airport (6.8 miles)

  • Lowest 17 July, 2026

    44.6 °F

  • Average July

    62.6 °F

  • Highest 21 July, 2026

    96.8 °F

Climate (2021–2026)

Petaluma Municipal Airport (6.8 miles)

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  • Average Low 2021–2026

    44.8 °F

  • Average 2021–2026

    55.2 °F

  • Average High 2021–2026

    68.5 °F
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