Salmon Weather Forecast

    • 36
    • 45

    Rain

    • 36
    • 48

    Rain/Snow

    • 38
    • 52

    Rain

    • 34
    • 51

    Chance Rain

    • 27
    • 51

    Partly Sunny

    • 27
    • 49

    Partly Sunny

Today 8 Dec Eastern Lemhi County

Mostly cloudy. Slight chance of snow early in the morning. Areas of snow and a slight chance of rain late in the afternoon. Chance of precipitation 50 percent. Highs in the mid 30s to lower 40s. Southwest Winds to 15 Mph.

Tonight 8 Dec Eastern Lemhi County

A chance of rain. Snow likely in the Evening, then slight chance of snow after midnight. Chance of precipitation 90 percent. Little or no new snow accumulation. Lows in the 30s. Southwest Winds 15 to 25 Mph with Gusts to around 35 Mph.

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Salmon Temperature Statistics

December Temperature

Salmon, Lemhi County Airport (3.7 miles)

  • Lowest 1 December, 2025

    12 °F

  • Average December

    28.6 °F

  • Highest 6 December, 2025

    42.1 °F

Climate (2020–Present)

Salmon, Lemhi County Airport (3.7 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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