Copeland Lake Weather Forecast

    • 32
    • 54

    Mostly Sunny

    • 37
    • 58

    Mostly Sunny

    • 39
    • 62

    Mostly Sunny

    • 35
    • 57

    Slight Chance Thunderstorms

    • 33
    • 54

    Chance Snow Showers

    • 30
    • 50

    Chance Rain/Snow

Today 8 Sep Absaroka/Beartooth Mountains

Sunny. Highs in the lower 60s. West Winds 10 to 20 Mph.

Tonight 8 Sep Absaroka/Beartooth Mountains

Mostly clear. Lows in the upper 20s. West Winds 5 to 15 Mph.

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Copeland Lake Temperature Statistics

September Temperature

Yellowstone Lake (46.6 miles)

  • Lowest 4 September, 2026

    35.7 °F

  • Average September

    52.2 °F

  • Highest 5 September, 2026

    71.1 °F

Climate (2021–2026)

Yellowstone Lake (46.6 miles)

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  • Average Low 2021–2026

    23 °F

  • Average 2021–2026

    35.8 °F

  • Average High 2021–2026

    48.6 °F
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