Jack London State Historic Park Weather Forecast

    • 50
    • 74

    Becoming Sunny

    • 52
    • 80

    Sunny

    • 52
    • 85

    Mostly Sunny

    • 53
    • 81

    Mostly Sunny

    • 55
    • 86

    Sunny

    • 54
    • 84

    Mostly Sunny

Today 30 May North Bay Interior Valleys

Sunny. Patchy fog in the morning. Highs in the upper 60s to lower 80s. West Winds 5 to 15 Mph.

Tonight 30 May North Bay Interior Valleys

Mostly clear. Lows in the 40s to mid 50s. West Winds 5 to 15 Mph.

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Jack London State Historic Park Temperature Statistics

May Temperature

Petaluma Municipal Airport (6.8 miles)

  • Lowest 4 May, 2026

    42.8 °F

  • Average May

    58.4 °F

  • Highest 19 May, 2026

    87.8 °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

    68.5 °F
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