Swan Lake Weather Forecast

    • 17
    • 29

    Snow Likely

    • 31
    • 38

    Rain/Snow

    • 29
    • 40

    Rain/Snow

    • 28
    • 41

    Rain/Snow

    • 28
    • 44

    Rain

    • 25
    • 39

    Rain/Snow

    • 21
    • 36

    Snow Likely

Today 20 Dec Centennial Mountains/Island Park

Sunny. Highs 26 to 33.

Tonight 20 Dec Centennial Mountains/Island Park

Mostly cloudy. A chance of snow after midnight. Snow accumulation up to 2 Inches. Lows 15 to 24.

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Swan Lake Temperature Statistics

December Temperature

West Yellowstone (31.7 miles)

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  • Average December

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Climate (2021–Present)

West Yellowstone (31.7 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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