San Geronimo Weather Forecast

    • 49
    • 71

    Mostly Cloudy

    • 51
    • 63

    Rain Showers Likely

    • 51
    • 60

    Rain

    • 48
    • 59

    Rain Showers Likely

    • 47
    • 61

    Slight Chance Rain

    • 47
    • 63

    Mostly Sunny

Today 18 Apr Marin Coastal Range

Partly cloudy. Highs in the upper 60s. Southeast Winds around 5 Mph.

Tonight 18 Apr Marin Coastal Range

Partly cloudy. Lows in the mid 40s. West Winds around 5 Mph.

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  • Temperature Real-Time

San Geronimo Temperature Statistics

April Temperature

Novato / Gnoss Field (10.6 miles)

  • Lowest 3 April, 2026

    42.8 °F

  • Average April

    58.3 °F

  • Highest 5 April, 2026

    86 °F

Climate (2021–Present)

Novato / Gnoss Field (10.6 miles)

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  • Average Low 2021–2026

    46.7 °F

  • Average 2021–2026

    57.7 °F

  • Average High 2021–2026

    72.6 °F
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