Jack London State Historic Park Weather Forecast

    • 46
    • 60

    Mostly Cloudy

    • 41
    • 62

    Partly Sunny

    • 43
    • 66

    Mostly Sunny

    • 44
    • 71

    Sunny

    • 46
    • 73

    Mostly Sunny

    • 47
    • 74

    Mostly Sunny

Today 25 Apr North Bay Interior Valleys

Mostly cloudy. Areas of fog in the morning. Highs in the upper 50s to mid 60s. West Winds 5 to 10 Mph. Becoming southwest 10 to 20 Mph in the afternoon.

Tonight 25 Apr North Bay Interior Valleys

Mostly cloudy. Patchy fog after midnight. A slight chance of rain after midnight. Lows in the 40s to mid 50s. Southwest Winds 10 to 20 Mph. Becoming 5 to 10 Mph after midnight.

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Jack London State Historic Park Temperature Statistics

April Temperature

Petaluma Municipal Airport (6.8 miles)

  • Lowest 18 April, 2026

    35.6 °F

  • Average April

    56.3 °F

  • Highest 5 April, 2026

    84.2 °F

Climate (2021–Present)

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

    68.6 °F
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