Petaluma Weather Forecast

    • 49
    • 78

    Mostly Cloudy

    • 48
    • 66

    Chance Rain

    • 44
    • 63

    Rain Likely

    • 40
    • 64

    Mostly Sunny

    • 44
    • 73

    Sunny

    • 46
    • 78

    Mostly Sunny

Today 30 Mar North Bay Interior Valleys

Mostly cloudy. Highs in the 70s to lower 80s. West Winds up to 5 Mph increasing to 10 to 15 Mph in the afternoon.

Tonight 30 Mar North Bay Interior Valleys

Mostly cloudy. A slight chance of rain after midnight. Lows in the 40s to mid 50s. West Winds 5 to 15 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Petaluma Temperature Statistics

March Temperature

Petaluma Municipal Airport (2.5 miles)

  • Lowest 10 March, 2026

    37.4 °F

  • Average March

    56.8 °F

  • Highest 18 March, 2026

    89.6 °F

Climate (2021–Present)

Petaluma Municipal Airport (2.5 miles)

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  • Average Low 2021–2026

    44.7 °F

  • Average 2021–2026

    55.2 °F

  • Average High 2021–2026

    68.6 °F
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