Sonoma Weather Forecast

    • 43
    • 72

    Mostly Sunny

    • 45
    • 77

    Mostly Sunny

    • 49
    • 81

    Sunny

    • 51
    • 90

    Sunny

    • 50
    • 91

    Sunny

    • 49
    • 87

    Mostly Sunny

    • 47
    • 78

    Mostly Sunny

Today 12 Oct North Bay Interior Valleys

Sunny. Highs in the lower 60s to mid 70s. West Winds 10 to 15 Mph.

Tonight 12 Oct North Bay Interior Valleys

Mostly clear. Areas of fog in the evening. Lows in the 40s to lower 50s. Northwest Winds 5 to 10 Mph.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Sonoma Temperature Statistics

October Temperature

Petaluma Municipal Airport (8.1 miles)

  • Lowest 1 October, 2026

    44.6 °F

  • Average October

    66.4 °F

  • Highest 3 October, 2026

    98.6 °F

Climate (2021–2026)

Petaluma Municipal Airport (8.1 miles)

Take a look at our website widgetsAvailable free! Find Out More

  • Average Low 2021–2026

    44.7 °F

  • Average 2021–2026

    55.2 °F

  • Average High 2021–2026

    68.5 °F
Get WillyWeather+ to remove ads