Jack London State Historic Park Weather Forecast

    • 36
    • 53

    Mostly Sunny

    • 36
    • 54

    Sunny

    • 37
    • 54

    Mostly Sunny

    • 41
    • 52

    Chance Rain

    • 46
    • 48

    Rain Likely

    • 45
    • 52

    Chance Rain

Today 28 Dec North Bay Interior Valleys

Sunny. Highs in the 50s. Northeast Winds around 5 Mph. Becoming southeast up to 5 Mph in the afternoon.

Tonight 28 Dec North Bay Interior Valleys

Mostly clear except patchy fog after midnight. Lows in the 30s to mid 40s. Northeast Winds 5 to 10 Mph.

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Jack London State Historic Park Temperature Statistics

December Temperature

Petaluma Municipal Airport (6.8 miles)

  • Lowest 4 December, 2025

    33.8 °F

  • Average December

    47.1 °F

  • Highest 3 December, 2025

    66.2 °F

Climate (2020–Present)

Petaluma Municipal Airport (6.8 miles)

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  • Average Low 2020–2025

    44.6 °F

  • Average 2020–2025

    55.1 °F

  • Average High 2020–2025

    68.6 °F
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