Duvall Lake Weather Forecast

    • 49
    • 78

    Partly Sunny

    • 50
    • 81

    Partly Sunny

    • 52
    • 85

    Partly Sunny

    • 51
    • 82

    Partly Sunny

    • 55
    • 86

    Partly Sunny

    • 55
    • 88

    Partly Sunny

Today 14 Aug North Bay Interior Mountains

Mostly cloudy in the morning then becoming sunny. Patchy fog in the morning. Highs in the lower 60s to mid 70s. South Winds 5 to 10 Mph.

Tonight 14 Aug North Bay Interior Mountains

Mostly cloudy. Areas of fog. Lows in the 50s. South Winds up to 5 Mph.

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Duvall Lake Temperature Statistics

August Temperature

Santa Rosa, Santa Rosa Sonoma County Airport (20.5 miles)

  • Lowest 10 August, 2026

    49.6 °F

  • Average August

    69.7 °F

  • Highest 1 August, 2026

    98.7 °F

Climate (2021–2026)

Santa Rosa, Santa Rosa Sonoma County Airport (20.5 miles)

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  • Average Low 2021–2026

    45.9 °F

  • Average 2021–2026

    58.6 °F

  • Average High 2021–2026

    72.8 °F
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