San Geronimo Weather Forecast

    • 42
    • 52

    Decreasing Clouds

    • 42
    • 57

    Partly Sunny

    • 46
    • 57

    Chance Rain

    • 45
    • 56

    Chance Rain

    • 46
    • 59

    Partly Sunny

    • 46
    • 58

    Mostly Cloudy

Today 25 Jan Marin Coastal Range

Mostly cloudy. Highs around 50. East Winds 5 to 10 Mph.

Tonight 25 Jan Marin Coastal Range

Mostly cloudy. Lows in the lower 40s. East Winds 5 to 10 Mph.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

San Geronimo Temperature Statistics

January Temperature

Novato / Gnoss Field (10.6 miles)

  • Lowest 12 January, 2026

    33.8 °F

  • Average January

    50.3 °F

  • Highest 22 January, 2026

    68 °F

Climate (2021–Present)

Novato / Gnoss Field (10.6 miles)

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

  • Average Low 2021–2026

    46.3 °F

  • Average 2021–2026

    57.4 °F

  • Average High 2021–2026

    72.3 °F
Get WillyWeather+ to remove ads