Jack London State Historic Park Weather Forecast

    • 52
    • 90

    Sunny

    • 45
    • 76

    Mostly Sunny

    • 45
    • 65

    Mostly Cloudy

    • 49
    • 68

    Slight Chance Rain Showers

    • 49
    • 69

    Partly Sunny

    • 46
    • 69

    Mostly Sunny

    • 46
    • 71

    Mostly Sunny

Today 17 Oct North Bay Interior Valleys

Partly cloudy. Highs in the 60s to lower 70s.

Tonight 17 Oct North Bay Interior Valleys

Mostly clear. Lows in the mid 40s to upper 50s. West Winds 5 to 10 Mph.

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Jack London State Historic Park Temperature Statistics

October Temperature

Petaluma Municipal Airport (6.8 miles)

  • Lowest 13 October, 2026

    39.2 °F

  • Average October

    65.1 °F

  • Highest 3 October, 2026

    98.6 °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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