Wallace Lake Weather Forecast

    • 49
    • 63

    Slight Chance Thunderstorms

    • 47
    • 64

    Chance Thunderstorms

    • 44
    • 64

    Partly Sunny

    • 44
    • 65

    Mostly Sunny

    • 48
    • 68

    Sunny

    • 52
    • 74

    Mostly Sunny

Today 25 Jun Western Lemhi County

Partly cloudy. A 20 percent chance of Showers and Thunderstorms in the afternoon. Highs in the mid 70s to lower 80s.

Tonight 25 Jun Western Lemhi County

Partly cloudy in the evening then becoming mostly cloudy. Lows in the 50s.

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Wallace Lake Temperature Statistics

June Temperature

Salmon, Lemhi County Airport (10.6 miles)

  • Lowest 3 June, 2025

    35.1 °F

  • Average June

    62.6 °F

  • Highest 9 June, 2025

    92.6 °F

Climate (2020–Present)

Salmon, Lemhi County Airport (10.6 miles)

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  • Average Low 2020–2025

    32.2 °F

  • Average 2020–2025

    45.3 °F

  • Average High 2020–2025

    58.1 °F
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