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.
Duvall Lake Temperature Statistics
August Temperature
Santa Rosa, Santa Rosa Sonoma County Airport (20.5 miles)
Lowest 10 August, 2026
49.6 °FAverage August
69.7 °FHighest 1 August, 2026
98.7 °F
Climate (2021–2026)
Santa Rosa, Santa Rosa Sonoma County Airport (20.5 miles)
Average Low 2021–2026
45.9 °FAverage 2021–2026
58.6 °FAverage High 2021–2026
72.8 °F