Glen Ellen Weather Forecast

    • 54
    • 84

    Sunny

    • 57
    • 88

    Sunny

    • 59
    • 94

    Sunny

    • 58
    • 97

    Hot

    • 56
    • 95

    Sunny

    • 55
    • 90

    Mostly Sunny

    • 55
    • 85

    Mostly Sunny

Today 13 Sep North Bay Interior Valleys

Partly cloudy in the morning then becoming sunny. Patchy dense fog in the morning. Highs in the lower 70s to mid 80s. Southwest Winds 5 to 15 Mph.

Tonight 13 Sep North Bay Interior Valleys

Mostly clear. Lows in the 50s to lower 60s. West Winds 10 to 15 Mph.

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Glen Ellen Temperature Statistics

September Temperature

Petaluma Municipal Airport (8.1 miles)

  • Lowest 7 September, 2025

    50 °F

  • Average September

    62.9 °F

  • Highest 1 September, 2025

    93.2 °F

Climate (2020–Present)

Petaluma Municipal Airport (8.1 miles)

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  • Average Low 2020–2025

    44.4 °F

  • Average 2020–2025

    55.2 °F

  • Average High 2020–2025

    69.1 °F
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