Anderson Marsh State Historical Park Weather Forecast

    • 37
    • 69

    Sunny

    • 38
    • 71

    Sunny

    • 45
    • 71

    Sunny

    • 43
    • 70

    Mostly Sunny

    • 40
    • 67

    Mostly Sunny

    • 41
    • 63

    Mostly Cloudy

    • 44
    • 60

    Chance Rain Showers

Today 9 Dec Southern Lake County

Sunny. Highs 62 to 72.

Tonight 9 Dec Southern Lake County

Clear. Lows 41 to 51.

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Anderson Marsh State Historical Park Temperature Statistics

December Temperature

Santa Rosa, Santa Rosa Sonoma County Airport (31.1 miles)

  • Lowest 4 December, 2025

    34 °F

  • Average December

    45.3 °F

  • Highest 3 December, 2025

    68 °F

Climate (2020–Present)

Santa Rosa, Santa Rosa Sonoma County Airport (31.1 miles)

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  • Average Low 2020–2025

    45.5 °F

  • Average 2020–2025

    57.9 °F

  • Average High 2020–2025

    72.5 °F
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