Grouse Creek Lake Weather Forecast

    • 17
    • 26

    Mostly Sunny

    • 14
    • 28

    Decreasing Clouds

    • 14
    • 27

    Mostly Sunny

    • 13
    • 26

    Partly Sunny

    • 11
    • 22

    Mostly Sunny

    • 15
    • 23

    Partly Sunny

    • 20
    • 27

    Mostly Cloudy

Today 19 Jan Lost River Range

Sunny. Highs 28 to 36.

Tonight 19 Jan Lost River Range

Mostly clear. Patchy freezing fog after midnight. Lows 13 to 21.

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Grouse Creek Lake Temperature Statistics

January Temperature

Salmon, Lemhi County Airport (49.1 miles)

  • Lowest 11 January, 2026

    14 °F

  • Average January

    27.9 °F

  • Highest 4 January, 2026

    48 °F

Climate (2021–Present)

Salmon, Lemhi County Airport (49.1 miles)

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  • Average Low 2021–2026

    32.7 °F

  • Average 2021–2026

    45.8 °F

  • Average High 2021–2026

    58.7 °F
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