Mormon Mountain Weather Forecast

    • 28
    • 39

    Mostly Sunny

    • 30
    • 42

    Mostly Sunny

    • 32
    • 49

    Sunny

    • 36
    • 52

    Mostly Sunny

    • 36
    • 52

    Partly Sunny

    • 37
    • 51

    Mostly Sunny

Today 13 Oct West Central Mountains

Widespread frost with Areas of fog this morning. Sunny. Not as cool with Highs 50 to 62.

Tonight 13 Oct West Central Mountains

Mostly clear. Widespread frost. Areas of fog after midnight. Lows 24 to 35.

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Mormon Mountain Temperature Statistics

October Temperature

Salmon, Lemhi County Airport (49.1 miles)

  • Lowest 8 October, 2026

    33.1 °F

  • Average October

    53.4 °F

  • Highest 9 October, 2026

    82.9 °F

Climate (2021–2026)

Salmon, Lemhi County Airport (49.1 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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