Twin Lakes Weather Forecast

    • 59
    • 93

    Sunny

    • 60
    • 95

    Partly Sunny

    • 56
    • 90

    Mostly Cloudy

    • 56
    • 82

    Partly Sunny

    • 58
    • 86

    Mostly Sunny

    • 60
    • 91

    Mostly Sunny

    • 59
    • 92

    Mostly Sunny

Today 16 Sep Southern Lake County

Sunny. Highs 85 to 96.

Tonight 16 Sep Southern Lake County

Clear. Lows 59 to 69.

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Twin Lakes Temperature Statistics

September Temperature

Santa Rosa, Santa Rosa Sonoma County Airport (28.6 miles)

  • Lowest 14 September, 2025

    48 °F

  • Average September

    65.3 °F

  • Highest 1 September, 2025

    99 °F

Climate (2020–Present)

Santa Rosa, Santa Rosa Sonoma County Airport (28.6 miles)

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  • Average Low 2020–2025

    45.3 °F

  • Average 2020–2025

    57.9 °F

  • Average High 2020–2025

    72.8 °F
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