San Geronimo Weather Forecast

    • 49
    • 71

    Becoming Sunny

    • 49
    • 71

    Mostly Sunny

    • 51
    • 68

    Mostly Sunny

    • 51
    • 71

    Mostly Sunny

    • 48
    • 67

    Mostly Sunny

    • 50
    • 70

    Partly Sunny

Today 21 Mar Marin Coastal Range

Partly cloudy. Highs in the lower 70s. Northwest Winds 10 to 20 Mph.

Tonight 21 Mar Marin Coastal Range

Mostly clear. Lows around 50. West Winds 10 to 20 Mph.

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  • Temperature Real-Time

San Geronimo Temperature Statistics

March Temperature

Novato / Gnoss Field (10.6 miles)

  • Lowest 10 March, 2026

    42.8 °F

  • Average March

    60.7 °F

  • Highest 18 March, 2026

    91.4 °F

Climate (2021–Present)

Novato / Gnoss Field (10.6 miles)

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  • Average Low 2021–2026

    46.5 °F

  • Average 2021–2026

    57.6 °F

  • Average High 2021–2026

    72.5 °F
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