Ajax Lake Weather Forecast

    • 37
    • 58

    Partly Sunny

    • 36
    • 60

    Partly Sunny

    • 28
    • 43

    Snow

    • 19
    • 33

    Snow Likely

    • 18
    • 33

    Chance Snow

    • 20
    • 35

    Chance Snow

Today 20 Apr Northwest Beaverhead County

Sunny. Highs 57 to 67. Southwest Winds up to 15 Mph with Gusts to around 30 Mph.

Tonight 20 Apr Northwest Beaverhead County

Partly cloudy. Lows in the upper 30s. Southwest Winds up to 10 Mph with Gusts to around 30 Mph.

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Ajax Lake Temperature Statistics

April Temperature

Salmon, Lemhi County Airport (16.2 miles)

  • Lowest 4 April, 2026

    24.1 °F

  • Average April

    45 °F

  • Highest 6 April, 2026

    70 °F

Climate (2021–Present)

Salmon, Lemhi County Airport (16.2 miles)

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  • Average Low 2021–2026

    33 °F

  • Average 2021–2026

    46.1 °F

  • Average High 2021–2026

    59.1 °F
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