Petaluma River - San Antonio Creek Entrance Weather Forecast

    • 44
    • 64

    Chance Rain Showers

    • 42
    • 67

    Mostly Sunny

    • 46
    • 68

    Mostly Cloudy

    • 46
    • 66

    Chance Rain

    • 45
    • 69

    Partly Sunny

    • 44
    • 71

    Partly Sunny

Today 31 Oct North Bay Interior Valleys

Mostly cloudy in the morning then becoming partly cloudy. Areas of fog in the morning. Highs in the upper 50s to mid 60s. West Winds 5 to 10 Mph.

Tonight 31 Oct North Bay Interior Valleys

Partly cloudy. A slight chance of Showers in the evening. A chance of Showers after midnight. Patchy fog after midnight. Lows in the upper 30s to lower 50s. West Winds 5 to 10 Mph.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Petaluma River - San Antonio Creek Entrance Temperature Statistics

October Temperature

Novato / Gnoss Field (1.2 miles)

  • Lowest 13 October, 2026

    42.8 °F

  • Average October

    61.5 °F

  • Highest 3 October, 2026

    100.4 °F

Climate (2021–2026)

Novato / Gnoss Field (1.2 miles)

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

  • Average Low 2021–2026

    47 °F

  • Average 2021–2026

    57.9 °F

  • Average High 2021–2026

    72.6 °F
Get WillyWeather+ to remove ads