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. Areas of fog in the morning. Highs in the mid 60s to upper 70s. South Winds 5 to 10 Mph.

Tonight 14 Aug North Bay Interior Mountains

Mostly clear in the evening then becoming partly cloudy. Areas of fog after midnight. Lows in the 50s. Southwest Winds up to 5 Mph.

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  • Temperature Real-Time

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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