Guerneville Weather Forecast

    • 45
    • 57

    Chance Rain Showers

    • 46
    • 61

    Areas Fog

    • 48
    • 59

    Rain

    • 45
    • 57

    Chance Rain

    • 45
    • 64

    Mostly Sunny

    • 46
    • 65

    Mostly Sunny

    • 47
    • 64

    Partly Sunny

Today 17 Nov North Bay Interior Valleys

Mostly cloudy. A chance of Showers and isolated Thunderstorms. Highs in the 50s to lower 60s. Northwest Winds 10 to 20 Mph.

Tonight 17 Nov North Bay Interior Valleys

Mostly cloudy in the evening then becoming partly cloudy. A chance of Showers in the evening. Patchy fog after midnight. Lows in the 40s. Northeast Winds 10 to 20 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Guerneville Temperature Statistics

November Temperature

Santa Rosa, Santa Rosa Sonoma County Airport (9.3 miles)

  • Lowest 1 November, 2025

    42.1 °F

  • Average November

    58.1 °F

  • Highest 2 November, 2025

    79 °F

Climate (2020–Present)

Santa Rosa, Santa Rosa Sonoma County Airport (9.3 miles)

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  • Average Low 2020–2025

    45.4 °F

  • Average 2020–2025

    57.9 °F

  • Average High 2020–2025

    72.6 °F
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