San Geronimo Weather Forecast

    • 50
    • 70

    Mostly Sunny

    • 54
    • 78

    Partly Sunny

    • 56
    • 82

    Mostly Sunny

    • 57
    • 83

    Mostly Sunny

    • 56
    • 81

    Mostly Sunny

    • 59
    • 83

    Partly Sunny

Today 14 Mar Marin Coastal Range

Sunny. Highs around 70. Northwest Winds 10 to 20 Mph.

Tonight 14 Mar Marin Coastal Range

Mostly clear. Lows in the lower 50s. Northwest Winds 10 to 20 Mph. Becoming 5 to 10 Mph after midnight.

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San Geronimo Temperature Statistics

March Temperature

Novato / Gnoss Field (10.6 miles)

  • Lowest 10 March, 2026

    42.8 °F

  • Average March

    59.4 °F

  • Highest 7 March, 2026

    80.6 °F

Climate (2021–Present)

Novato / Gnoss Field (10.6 miles)

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  • Average Low 2021–2026

    46.5 °F

  • Average 2021–2026

    57.5 °F

  • Average High 2021–2026

    72.4 °F
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