Petaluma River - Sears Point Road Bridge Weather Forecast

    • 44
    • 59

    Becoming Sunny

    • 45
    • 62

    Partly Sunny

    • 45
    • 63

    Partly Sunny

    • 46
    • 64

    Partly Sunny

    • 48
    • 64

    Partly Sunny

    • 47
    • 66

    Patchy Fog

Today 5 Dec North Bay Interior Valleys

Partly cloudy in the morning then becoming sunny. Patchy fog in the morning. Highs in the lower 50s to mid 60s. Southeast Winds 5 to 10 Mph. Becoming south in the afternoon.

Tonight 5 Dec North Bay Interior Valleys

Mostly clear in the evening then becoming partly cloudy. Patchy fog. Lows in the 40s. Southwest Winds 5 to 10 Mph. Becoming northeast 10 to 15 Mph after midnight.

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Petaluma River - Sears Point Road Bridge Temperature Statistics

December Temperature

Novato / Gnoss Field (3.1 miles)

  • Lowest 2 December, 2025

    37.4 °F

  • Average December

    48.7 °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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