Mount Jefferson Weather Forecast

    • 31
    • 43

    Mostly Sunny

    • 31
    • 42

    Mostly Sunny

    • 30
    • 44

    Mostly Sunny

    • 34
    • 44

    Partly Sunny

    • 34
    • 43

    Chance Rain/Snow

    • 36
    • 43

    Chance Snow

Today 16 Oct Centennial Mountains/Island Park

Mostly cloudy with a chance of rain and snow. Highs 43 to 51.

Tonight 16 Oct Centennial Mountains/Island Park

Partly cloudy. Lows 26 to 36.

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Mount Jefferson Temperature Statistics

October Temperature

West Yellowstone (20.5 miles)

  • Lowest 4 October, 2026

    24.8 °F

  • Average October

    44.9 °F

  • Highest 5 October, 2026

    75.2 °F

Climate (2021–2026)

West Yellowstone (20.5 miles)

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  • Average Low 2021–2026

    34 °F

  • Average 2021–2026

    50.9 °F

  • Average High 2021–2026

    66.1 °F
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