Sebastopol Weather Forecast

    • 56
    • 88

    Becoming Sunny

    • 54
    • 90

    Mostly Sunny

    • 55
    • 89

    Mostly Sunny

    • 55
    • 82

    Partly Sunny

    • 54
    • 80

    Partly Sunny

    • 54
    • 78

    Partly Sunny

Today 15 Sep North Bay Interior Valleys

Sunny. Highs in the 80s to 90s. South Winds 5 to 10 Mph.

Tonight 15 Sep North Bay Interior Valleys

Clear. Lows in the 50s to mid 60s. West Winds 5 to 10 Mph.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Sebastopol Temperature Statistics

September Temperature

Santa Rosa, Santa Rosa Sonoma County Airport (6.2 miles)

  • Lowest 7 September, 2025

    48.9 °F

  • Average September

    65.6 °F

  • Highest 1 September, 2025

    99 °F

Climate (2020–Present)

Santa Rosa, Santa Rosa Sonoma County Airport (6.2 miles)

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

  • Average Low 2020–2025

    45.3 °F

  • Average 2020–2025

    57.9 °F

  • Average High 2020–2025

    72.8 °F
Get WillyWeather+ to remove ads