Petaluma River - Black Point Weather Forecast

    • 44
    • 57

    Decreasing Clouds

    • 46
    • 61

    Mostly Cloudy

    • 47
    • 63

    Partly Sunny

    • 48
    • 65

    Patchy Fog

    • 46
    • 65

    Patchy Fog

    • 46
    • 64

    Partly Sunny

Today 7 Dec North Bay Interior Valleys

Mostly cloudy in the morning then becoming partly cloudy. Patchy dense fog in the morning. Highs in the lower 50s to mid 60s. West Winds 5 to 10 Mph.

Tonight 7 Dec North Bay Interior Valleys

Partly cloudy. Patchy fog. Lows in the 40s. North Winds 5 to 10 Mph.

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Petaluma River - Black Point Temperature Statistics

December Temperature

Novato / Gnoss Field (3.1 miles)

  • Lowest 2 December, 2025

    37.4 °F

  • Average December

    48 °F

  • Highest 3 December, 2025

    71.6 °F

Climate (2020–Present)

Novato / Gnoss Field (3.1 miles)

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  • Average Low 2020–2025

    46.1 °F

  • Average 2020–2025

    57.4 °F

  • Average High 2020–2025

    72.3 °F
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