Salmon Weather Forecast

    • 51
    • 92

    Chance Rain Showers

    • 50
    • 89

    Mostly Sunny

    • 51
    • 93

    Mostly Sunny

    • 53
    • 94

    Partly Sunny

    • 55
    • 91

    Partly Sunny

    • 53
    • 89

    Partly Sunny

Today 20 Aug Eastern Lemhi County

Partly cloudy. Areas of smoke through the day. Slight chance of rain early in the afternoon. Areas of rain and a slight chance of Thunderstorms late in the afternoon. Chance of precipitation 30 percent. Highs in the 80s. West Winds to 15 Mph in the afternoon.

Tonight 20 Aug Eastern Lemhi County

Mostly clear. Areas of smoke. Lows in the mid 40s to lower 50s. Northwest Winds to 15 Mph.

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Salmon Temperature Statistics

August Temperature

Salmon, Lemhi County Airport (3.7 miles)

  • Lowest 8 August, 2025

    42.7 °F

  • Average August

    66.9 °F

  • Highest 12 August, 2025

    95.6 °F

Climate (2020–Present)

Salmon, Lemhi County Airport (3.7 miles)

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  • Average Low 2020–2025

    32.2 °F

  • Average 2020–2025

    45.3 °F

  • Average High 2020–2025

    58.2 °F
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