Jewell Weather Forecast

    • 46
    • 57

    Mostly Cloudy

    • 42
    • 56

    Partly Sunny

    • 37
    • 54

    Mostly Sunny

    • 38
    • 53

    Mostly Sunny

    • 40
    • 54

    Mostly Cloudy

    • 41
    • 56

    Partly Sunny

    • 42
    • 57

    Mostly Sunny

Today 6 Jan Marin Coastal Range

Partly cloudy. Highs in the lower 50s. East Winds around 5 Mph.

Tonight 6 Jan Marin Coastal Range

Mostly cloudy. Lows in the mid 40s. West Winds 5 to 10 Mph.

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Jewell Temperature Statistics

January Temperature

Novato / Gnoss Field (12.4 miles)

  • Lowest 1 January, 2026

    48.2 °F

  • Average January

    54.8 °F

  • Highest 3 January, 2026

    62.6 °F

Climate (2021–Present)

Novato / Gnoss Field (12.4 miles)

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  • Average Low 2021–2026

    46.3 °F

  • Average 2021–2026

    57.4 °F

  • Average High 2021–2026

    72.3 °F
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