Helen Putnam Regional Park Weather Forecast

    • 48
    • 77

    Mostly Sunny

    • 50
    • 78

    Mostly Sunny

    • 49
    • 75

    Mostly Sunny

    • 50
    • 76

    Mostly Sunny

    • 50
    • 76

    Mostly Sunny

    • 49
    • 76

    Partly Sunny

Today 17 Oct North Bay Interior Valleys

Partly cloudy in the morning then becoming sunny. Highs in the upper 60s to lower 80s. East Winds 5 to 10 Mph. Becoming southwest 10 to 20 Mph in the afternoon.

Tonight 17 Oct North Bay Interior Valleys

Mostly clear. Lows in the upper 40s to mid 50s. Southwest Winds 10 to 20 Mph. Becoming northwest 5 to 10 Mph after midnight.

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Helen Putnam Regional Park Temperature Statistics

October Temperature

Petaluma Municipal Airport (3.7 miles)

  • Lowest 10 October, 2025

    42.8 °F

  • Average October

    56.9 °F

  • Highest 7 October, 2025

    86 °F

Climate (2020–Present)

Petaluma Municipal Airport (3.7 miles)

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  • Average Low 2020–2025

    44.4 °F

  • Average 2020–2025

    55.1 °F

  • Average High 2020–2025

    68.9 °F
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