Jewell Weather Forecast

    • 56
    • 81

    Sunny

    • 61
    • 83

    Mostly Sunny

    • 63
    • 87

    Partly Sunny

    • 59
    • 82

    Mostly Sunny

    • 56
    • 75

    Partly Sunny

    • 55
    • 73

    Partly Sunny

Today 7 Sep Marin Coastal Range

Sunny. Highs in the mid 80s. Light Winds. Becoming southwest around 5 Mph in the afternoon.

Tonight 7 Sep Marin Coastal Range

Mostly clear. Lows in the upper 50s. West Winds 5 to 10 Mph in the evening. Becoming light.

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Jewell Temperature Statistics

September Temperature

Novato / Gnoss Field (12.4 miles)

  • Lowest 4 September, 2026

    51.8 °F

  • Average September

    64.4 °F

  • Highest 2 September, 2026

    77 °F

Climate (2021–2026)

Novato / Gnoss Field (12.4 miles)

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  • Average Low 2021–2026

    46.9 °F

  • Average 2021–2026

    57.8 °F

  • Average High 2021–2026

    72.5 °F
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