Sonoma Mountain Weather Forecast

    • 51
    • 67

    Mostly Sunny

    • 53
    • 70

    Mostly Sunny

    • 53
    • 69

    Partly Sunny

    • 53
    • 63

    Mostly Cloudy

    • 51
    • 60

    Partly Sunny

    • 52
    • 58

    Partly Sunny

Today 29 Apr North Bay Interior Valleys

Sunny. Patchy fog in the morning. Highs in the 60s to upper 70s. West Winds up to 5 Mph increasing to southwest 10 to 15 Mph in the afternoon.

Tonight 29 Apr North Bay Interior Valleys

Mostly clear except patchy fog 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

Sonoma Mountain Temperature Statistics

April Temperature

Petaluma Municipal Airport (4.3 miles)

  • Lowest 18 April, 2026

    35.6 °F

  • Average April

    56.3 °F

  • Highest 5 April, 2026

    84.2 °F

Climate (2021–Present)

Petaluma Municipal Airport (4.3 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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