San Pablo Bay - Petaluma River Entrance Weather Forecast

    • 56
    • 68

    Rain Showers

    • 55
    • 65

    Rain Showers

    • 54
    • 69

    Mostly Cloudy

    • 52
    • 70

    Mostly Cloudy

    • 51
    • 73

    Partly Sunny

    • 53
    • 73

    Mostly Cloudy

    • 52
    • 74

    Partly Sunny

Today 4 Nov North Bay Interior Valleys

Mostly cloudy. Highs in the 60s to lower 70s. South Winds 5 to 10 Mph increasing to 10 to 20 Mph in the afternoon.

Tonight 4 Nov North Bay Interior Valleys

Very windy. Rain in the Evening, then Showers and a slight chance of Thunderstorms after midnight. Lows in the 50s. South Winds 20 to 30 Mph increasing to 35 to 45 Mph after midnight.

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  • Temperature Real-Time

San Pablo Bay - Petaluma River Entrance Temperature Statistics

November Temperature

Novato / Gnoss Field (3.7 miles)

  • Lowest 1 November, 2025

    42.8 °F

  • Average November

    59.5 °F

  • Highest 1 November, 2025

    80.6 °F

Climate (2020–Present)

Novato / Gnoss Field (3.7 miles)

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  • Average Low 2020–2025

    46 °F

  • Average 2020–2025

    57.3 °F

  • Average High 2020–2025

    72.4 °F
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