Sonoma Weather Forecast

    • 48
    • 60

    Rain

    • 45
    • 61

    Rain

    • 41
    • 64

    Chance Rain

    • 43
    • 70

    Mostly Sunny

    • 46
    • 73

    Mostly Sunny

    • 47
    • 69

    Partly Sunny

Today 20 Apr North Bay Interior Valleys

Rain likely in the Morning, then rain in the afternoon. Highs in the mid 50s to upper 60s. South Winds 10 to 20 Mph.

Tonight 20 Apr North Bay Interior Valleys

Mostly cloudy. A chance of rain. Lows in the 40s to mid 50s. Southeast Winds 10 to 15 Mph.

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Sonoma Temperature Statistics

April Temperature

Petaluma Municipal Airport (8.1 miles)

  • Lowest 15 April, 2026

    39.2 °F

  • Average April

    56.3 °F

  • Highest 5 April, 2026

    84.2 °F

Climate (2021–Present)

Petaluma Municipal Airport (8.1 miles)

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  • Average Low 2021–2026

    44.8 °F

  • Average 2021–2026

    55.2 °F

  • Average High 2021–2026

    68.6 °F
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