San Rafael Bay - West Marin Island Weather Forecast

    • 52
    • 60

    Increasing Clouds

    • 53
    • 64

    Becoming Sunny

    • 54
    • 66

    Mostly Sunny

    • 55
    • 67

    Mostly Sunny

    • 54
    • 66

    Partly Sunny

    • 54
    • 64

    Partly Sunny

    • 55
    • 62

    Partly Sunny

Today 27 Apr North Bay Interior Valleys

Partly cloudy. A slight chance of drizzle. Highs in the 50s to upper 60s. West Winds 10 to 15 Mph.

Tonight 27 Apr North Bay Interior Valleys

Partly cloudy. A slight chance of drizzle late in the evening. Areas of fog after midnight. Lows in the 40s to lower 50s. West Winds 5 to 10 Mph.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

San Rafael Bay - West Marin Island Temperature Statistics

April Temperature

Novato / Gnoss Field (12.4 miles)

  • Lowest 3 April, 2026

    42.8 °F

  • Average April

    58.5 °F

  • Highest 5 April, 2026

    86 °F

Climate (2021–Present)

Novato / Gnoss Field (12.4 miles)

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

  • Average Low 2021–2026

    46.7 °F

  • Average 2021–2026

    57.7 °F

  • Average High 2021–2026

    72.6 °F
Get WillyWeather+ to remove ads