Mulkey Lake Weather Forecast

    • 29
    • 61

    Increasing Clouds

    • 30
    • 61

    Rain

    • 17
    • 40

    Rain/Snow

    • 17
    • 42

    Partly Sunny

    • 19
    • 47

    Partly Sunny

    • 19
    • 48

    Partly Sunny

Today 21 Oct Northwest Beaverhead County

Sunny. Highs 52 to 60. Southwest Winds 5 to 10 Mph.

Tonight 21 Oct Northwest Beaverhead County

Partly cloudy. Lows 32 to 40. South Winds up to 10 Mph.

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Mulkey Lake Temperature Statistics

October Temperature

Salmon, Lemhi County Airport (26.1 miles)

  • Lowest 16 October, 2026

    25 °F

  • Average October

    48.6 °F

  • Highest 9 October, 2026

    82.9 °F

Climate (2021–2026)

Salmon, Lemhi County Airport (26.1 miles)

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  • Average Low 2021–2026

    33.1 °F

  • Average 2021–2026

    46.1 °F

  • Average High 2021–2026

    59.2 °F
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