Guerneville Weather Forecast
- 49
- 78
Partly Sunny
- 51
- 75
Partly Sunny
- 53
- 77
Mostly Sunny
- 56
- 83
Partly Sunny
- 57
- 85
Mostly Sunny
- 56
- 85
Mostly Sunny
- 57
- 83
Mostly Sunny
Today 12 Mar North Bay Interior Valleys
Sunny. Highs in the 70s to lower 80s. West Winds 5 to 10 Mph.
Tonight 12 Mar North Bay Interior Valleys
Partly cloudy. Lows in the 40s to mid 50s. West Winds 5 to 10 Mph.
Guerneville Temperature Statistics
March Temperature
Santa Rosa, Santa Rosa Sonoma County Airport (9.3 miles)
Lowest 10 March, 2026
39.9 °FAverage March
58.6 °FHighest 8 March, 2026
80.1 °F
Climate (2021–Present)
Santa Rosa, Santa Rosa Sonoma County Airport (9.3 miles)
Average Low 2021–2026
45.7 °FAverage 2021–2026
58.1 °FAverage High 2021–2026
72.6 °F