San Geronimo Weather Forecast

    • 47
    • 56

    Chance Rain

    • 52
    • 61

    Rain

    • 53
    • 56

    Rain

    • 49
    • 61

    Slight Chance Rain

    • 50
    • 63

    Partly Sunny

    • 51
    • 65

    Mostly Cloudy

Today 22 Feb Marin Coastal Range

Mostly cloudy. A chance of rain in the morning. A slight chance of rain in the afternoon. Highs in the mid 50s. South Winds 10 to 20 Mph.

Tonight 22 Feb Marin Coastal Range

Mostly cloudy. Lows in the upper 40s. Southeast Winds 5 to 10 Mph.

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San Geronimo Temperature Statistics

February Temperature

Novato / Gnoss Field (10.6 miles)

  • Lowest 18 February, 2026

    35.6 °F

  • Average February

    52.5 °F

  • Highest 2 February, 2026

    75.2 °F

Climate (2021–Present)

Novato / Gnoss Field (10.6 miles)

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  • Average Low 2021–2026

    46.4 °F

  • Average 2021–2026

    57.5 °F

  • Average High 2021–2026

    72.3 °F
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