Sonoma Mountain Weather Forecast

    • 58
    • 63

    Rain Likely

    • 56
    • 67

    Mostly Sunny

    • 54
    • 72

    Sunny

    • 55
    • 71

    Mostly Sunny

    • 53
    • 69

    Mostly Sunny

    • 54
    • 65

    Mostly Sunny

Today 25 Sep North Bay Interior Valleys

Mostly cloudy. A chance of rain and a slight chance of drizzle in the afternoon. Highs in the 60s to mid 70s. South Winds 10 to 20 Mph.

Tonight 25 Sep North Bay Interior Valleys

A chance of drizzle in the evening. Rain likely. Lows in the mid 50s to lower 60s. South Winds 10 to 20 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Sonoma Mountain Temperature Statistics

September Temperature

Petaluma Municipal Airport (4.3 miles)

  • Lowest 22 September, 2023

    42.8 °F

  • Average September

    60.5 °F

  • Highest 11 September, 2023

    84.2 °F

Climate (2011–Present)

Petaluma Municipal Airport (4.3 miles)

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  • Average Low 2011–Present

    45 °F

  • Average 2011–Present

    55.8 °F

  • Average High 2011–Present

    70.1 °F
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