Santa Rosa Weather Forecast

    • 53
    • 74

    Increasing Clouds

    • 53
    • 69

    Mostly Cloudy

    • 53
    • 70

    Chance Rain

    • 52
    • 70

    Slight Chance Rain

    • 51
    • 73

    Partly Sunny

    • 51
    • 74

    Partly Sunny

    • 55
    • 78

    Mostly Sunny

Today 31 Aug North Bay Interior Valleys

Partly cloudy. Highs in the mid 60s to upper 70s. Southwest Winds 10 to 20 Mph.

Tonight 31 Aug North Bay Interior Valleys

Partly cloudy in the evening then becoming mostly cloudy. Lows in the 40s to upper 50s. West Winds 10 to 20 Mph.

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Santa Rosa Temperature Statistics

August Temperature

Santa Rosa, Santa Rosa Sonoma County Airport (6.8 miles)

  • Lowest 22 August, 2026

    47.6 °F

  • Average August

    69.3 °F

  • Highest 1 August, 2026

    98.7 °F

Climate (2021–2026)

Santa Rosa, Santa Rosa Sonoma County Airport (6.8 miles)

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  • Average Low 2021–2026

    45.9 °F

  • Average 2021–2026

    58.6 °F

  • Average High 2021–2026

    72.9 °F
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