Salmon Weather Forecast

    • 45
    • 76

    Increasing Clouds

    • 48
    • 82

    Mostly Sunny

    • 39
    • 81

    Slight Chance Rain

    • 39
    • 68

    Partly Sunny

    • 39
    • 70

    Chance Rain

    • 36
    • 66

    Partly Sunny

Today 23 Sep Eastern Lemhi County

Mostly sunny. Highs in the upper 50s to mid 60s.

Tonight 23 Sep Eastern Lemhi County

Mostly clear. Lows in the 40s. Southeast Winds to 15 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Salmon Temperature Statistics

September Temperature

Salmon, Lemhi County Airport (3.7 miles)

  • Lowest 15 September, 2026

    35.1 °F

  • Average September

    57.6 °F

  • Highest 10 September, 2026

    82.9 °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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