Robert Louis Stevenson State Park Weather Forecast

    • 54
    • 62

    Sunny

    • 51
    • 63

    Sunny

    • 50
    • 62

    Sunny

    • 47
    • 59

    Mostly Sunny

    • 46
    • 56

    Mostly Sunny

    • 48
    • 53

    Mostly Cloudy

    • 50
    • 55

    Chance Rain

Today 9 Dec North Bay Interior Mountains

Sunny. Highs around 60. North Winds 5 to 10 Mph.

Tonight 9 Dec North Bay Interior Mountains

Mostly clear. Lows in the 40s to 50s. North Winds 5 to 10 Mph.

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Robert Louis Stevenson State Park Temperature Statistics

December Temperature

Santa Rosa, Santa Rosa Sonoma County Airport (14.9 miles)

  • Lowest 4 December, 2025

    34 °F

  • Average December

    45.3 °F

  • Highest 3 December, 2025

    68 °F

Climate (2020–Present)

Santa Rosa, Santa Rosa Sonoma County Airport (14.9 miles)

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  • Average Low 2020–2025

    45.5 °F

  • Average 2020–2025

    57.9 °F

  • Average High 2020–2025

    72.5 °F
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