Tamalpais Valley Weather Forecast

    • 54
    • 69

    Breezy

    • 53
    • 70

    Mostly Sunny

    • 54
    • 75

    Mostly Sunny

    • 54
    • 71

    Partly Sunny

    • 55
    • 68

    Partly Sunny

    • 55
    • 70

    Partly Sunny

Today 12 Sep Coastal North Bay Including Point Reyes National Seashore

Partly cloudy in the morning then becoming sunny. Highs in the mid 60s to lower 70s. West Winds 10 to 20 Mph.

Tonight 12 Sep Coastal North Bay Including Point Reyes National Seashore

Mostly clear. Lows in the mid 50s. Northwest Winds 10 to 20 Mph.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Tamalpais Valley Temperature Statistics

September Temperature

Novato / Gnoss Field (18 miles)

  • Lowest 6 September, 2026

    48.2 °F

  • Average September

    68.1 °F

  • Highest 9 September, 2026

    100.4 °F

Climate (2021–2026)

Novato / Gnoss Field (18 miles)

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

  • Average Low 2021–2026

    47 °F

  • Average 2021–2026

    57.8 °F

  • Average High 2021–2026

    72.5 °F
Get WillyWeather+ to remove ads