Maxwell Farms Regional Park Weather Forecast

    • 36
    • 54

    Partly Sunny

    • 35
    • 54

    Mostly Sunny

    • 35
    • 55

    Mostly Sunny

    • 36
    • 55

    Mostly Sunny

    • 38
    • 54

    Mostly Cloudy

    • 41
    • 52

    Chance Rain Showers

Today 27 Dec North Bay Interior Valleys

Sunny. Highs in the upper 40s to mid 50s. North Winds 5 to 10 Mph.

Tonight 27 Dec North Bay Interior Valleys

Mostly clear in the evening then becoming partly cloudy. Lows in the mid 30s to lower 40s. Northwest Winds around 5 Mph.

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Maxwell Farms Regional Park Temperature Statistics

December Temperature

Petaluma Municipal Airport (6.8 miles)

  • Lowest 4 December, 2025

    33.8 °F

  • Average December

    47 °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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