Salmon Weather Forecast

    • 45
    • 79

    Mostly Sunny

    • 47
    • 85

    Partly Sunny

    • 45
    • 77

    Mostly Sunny

    • 42
    • 75

    Rain

    • 35
    • 58

    Rain Showers Likely

    • 37
    • 65

    Mostly Sunny

Today 9 Sep Eastern Lemhi County

Mostly sunny. Highs in the upper 60s to mid 70s.

Tonight 9 Sep Eastern Lemhi County

Mostly clear. Lows in the 40s.

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Salmon Temperature Statistics

September Temperature

Salmon, Lemhi County Airport (3.7 miles)

  • Lowest 1 September, 2026

    46 °F

  • Average September

    59.7 °F

  • Highest 1 September, 2026

    82 °F

Climate (2021–2026)

Salmon, Lemhi County Airport (3.7 miles)

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  • Average Low 2021–2026

    33.1 °F

  • Average 2021–2026

    46.1 °F

  • Average High 2021–2026

    59.1 °F
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