Sonoma Weather Forecast

    • 40
    • 73

    Mostly Sunny

    • 41
    • 74

    Partly Sunny

    • 44
    • 79

    Sunny

    • 45
    • 86

    Sunny

    • 46
    • 87

    Mostly Sunny

    • 45
    • 87

    Sunny

Today 18 Oct North Bay Interior Valleys

Sunny. Highs in the lower 60s to mid 70s. West Winds 10 to 20 Mph.

Tonight 18 Oct North Bay Interior Valleys

Mostly clear. A slight chance of Showers after midnight. Lows in the upper 30s to lower 50s. West Winds 10 to 20 Mph.

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Sonoma Temperature Statistics

October Temperature

Petaluma Municipal Airport (8.1 miles)

  • Lowest 11 October, 2019

    35.6 °F

  • Average October

    56.5 °F

  • Highest 8 October, 2019

    82.4 °F

Climate (2011–Present)

Petaluma Municipal Airport (8.1 miles)

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  • Average Low 2011–Present

    46.1 °F

  • Average 2011–Present

    56.6 °F

  • Average High 2011–Present

    70.4 °F
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