Lake Sonoma Weather Forecast

    • 51
    • 70

    Drizzle Likely

    • 53
    • 68

    Rain

    • 49
    • 68

    Rain

    • 48
    • 72

    Mostly Sunny

    • 49
    • 74

    Mostly Sunny

    • 51
    • 76

    Mostly Sunny

    • 55
    • 80

    Mostly Sunny

Today 1 Sep Sonoma Coastal Range

Partly cloudy. Highs in the lower 70s. Southwest Winds around 5 Mph.

Tonight 1 Sep Sonoma Coastal Range

Partly cloudy in the evening then becoming mostly cloudy. A chance of drizzle in the Evening, then drizzle likely after midnight. Areas of fog after midnight. Lows in the lower 50s. Southwest Winds up to 5 Mph in the evening. Becoming light.

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Lake Sonoma Temperature Statistics

September Temperature

Santa Rosa, Santa Rosa Sonoma County Airport (21.1 miles)

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  • Average September

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Climate (2021–2026)

Santa Rosa, Santa Rosa Sonoma County Airport (21.1 miles)

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  • Average Low 2021–2026

    45.9 °F

  • Average 2021–2026

    58.6 °F

  • Average High 2021–2026

    72.9 °F
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