Mount Jefferson Weather Forecast

    • 29
    • 37

    Snow

    • 26
    • 31

    Snow

    • 25
    • 30

    Snow

    • 24
    • 30

    Chance Snow

    • 27
    • 31

    Slight Chance Snow

    • 25
    • 36

    Snow Likely

Today 14 Oct Centennial Mountains/Island Park

Rain Showers likely and a slight chance of Thunderstorms in the morning. Then a chance of rain Showers and a slight chance of Thunderstorms in the afternoon. Highs 49 to 59.

Tonight 14 Oct Centennial Mountains/Island Park

Rain Showers likely and a slight chance of Thunderstorms in the evening. Then rain Showers, snow Showers and a slight chance of Thunderstorms after midnight. Snow accumulation of 1 to 3 Inches. Lows 29 to 39.

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  • Temperature Real-Time

Mount Jefferson Temperature Statistics

October Temperature

West Yellowstone (20.5 miles)

  • Lowest 7 October, 2025

    19.4 °F

  • Average October

    43.1 °F

  • Highest 9 October, 2025

    69.8 °F

Climate (2020–Present)

West Yellowstone (20.5 miles)

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  • Average Low 2020–2025

    33.6 °F

  • Average 2020–2025

    50.8 °F

  • Average High 2020–2025

    66 °F
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