Sonoma Weather Forecast

    • 51
    • 77

    Increasing Clouds

    • 52
    • 72

    Mostly Cloudy

    • 52
    • 74

    Partly Sunny

    • 50
    • 75

    Chance Rain

    • 48
    • 77

    Mostly Sunny

    • 50
    • 78

    Mostly Sunny

Today 31 Aug North Bay Interior Valleys

Partly cloudy late in the morning then becoming sunny. 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 mid 40s to upper 50s. West Winds 10 to 20 Mph.

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Sonoma Temperature Statistics

August Temperature

Petaluma Municipal Airport (8.1 miles)

  • Lowest 10 August, 2026

    46.4 °F

  • Average August

    63 °F

  • Highest 2 August, 2026

    93.2 °F

Climate (2021–2026)

Petaluma Municipal Airport (8.1 miles)

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  • Average Low 2021–2026

    44.7 °F

  • Average 2021–2026

    55.2 °F

  • Average High 2021–2026

    68.5 °F
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