Sheridan Reservoir Weather Forecast

    • 22
    • 42

    Mostly Sunny

    • 25
    • 38

    Partly Sunny

    • 29
    • 37

    Rain/Snow

    • 15
    • 40

    Snow Likely

    • 25
    • 30

    Snow

    • 22
    • 37

    Snow

    • 18
    • 33

    Chance Snow

Today 14 Dec Centennial Mountains/Island Park

Sunny. Highs 41 to 48.

Tonight 14 Dec Centennial Mountains/Island Park

Mostly clear. Lows 18 to 28.

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Sheridan Reservoir Temperature Statistics

December Temperature

West Yellowstone (32.3 miles)

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  • Average December

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Climate (2021–Present)

West Yellowstone (32.3 miles)

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  • Average Low 2021–2025

    34 °F

  • Average 2021–2025

    51.3 °F

  • Average High 2021–2025

    66.6 °F
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