Guerneville Weather Forecast

    • 45
    • 55

    Rain

    • 41
    • 55

    Chance Rain

    • 38
    • 55

    Partly Sunny

    • 39
    • 56

    Mostly Cloudy

    • 42
    • 55

    Chance Rain

    • 44
    • 55

    Chance Rain

    • 47
    • 57

    Chance Rain

Today 13 Dec North Bay Mountains

A chance of rain late in the Morning, then rain likely in the afternoon. Highs in the 50s. Southwest Winds 5 to 10 Mph.

Tonight 13 Dec North Bay Mountains

Mostly cloudy. Patchy fog in the evening. A chance of rain in the Evening, then a slight chance of rain after midnight. Lows in the mid 40s. Southwest Winds 5 to 10 Mph. Becoming west 10 to 20 Mph after midnight.

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Guerneville Temperature Statistics

December Temperature

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

  • Lowest 9 December, 2019

    43 °F

  • Average December

    52.6 °F

  • Highest 6 December, 2019

    63 °F

Climate (2010–Present)

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

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  • Average Low 2010–Present

    46 °F

  • Average 2010–Present

    56.5 °F

  • Average High 2010–Present

    72 °F
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