Mormon Mountain Weather Forecast

    • 20
    • 23

    Snow Likely

    • 25
    • 25

    Snow

    • 28
    • 30

    Blizzard

    • 29
    • 33

    Snow

    • 28
    • 34

    Snow

    • 26
    • 31

    Chance Snow

Today 6 Dec West Central Mountains

Snow. Areas of fog this morning. Patchy fog this afternoon. Chance of snow 90 percent. Snow accumulation up to 1 inch across the lower Elevations, with up to 4 Inches over the Mountains. Highs 31 to 42.

Tonight 6 Dec West Central Mountains

Snow Likely, mainly in the evening. Areas of fog. Chance of snow 70 percent. Snow accumulation up to 1 inch across the lower Elevations, with up to 3 Inches over the Mountains. Lows 24 to 31.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Mormon Mountain Temperature Statistics

December Temperature

Salmon, Lemhi County Airport (49.1 miles)

  • Lowest 1 December, 2025

    12 °F

  • Average December

    26.6 °F

  • Highest 3 December, 2025

    37.9 °F

Climate (2020–Present)

Salmon, Lemhi County Airport (49.1 miles)

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  • Average Low 2020–2025

    32.5 °F

  • Average 2020–2025

    45.5 °F

  • Average High 2020–2025

    58.5 °F
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