Round Lake Weather Forecast

    • 1
    • 14

    Decreasing Clouds

    • 9
    • 20

    Partly Sunny

    • 15
    • 27

    Mostly Sunny

    • 23
    • 32

    Snow

    • 14
    • 30

    Snow

    • 13
    • 28

    Chance Snow

Today 20 Feb Big Lost Highlands/Copper Basin

Mostly sunny. A slight chance of snow in the morning. Highs 19 to 29. Wind chill Readings 12 below to 22 below zero.

Tonight 20 Feb Big Lost Highlands/Copper Basin

Partly cloudy. Lows 1 to 11. Wind chill Readings 7 below to 17 below zero.

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Round Lake Temperature Statistics

February Temperature

Hailey, Friedman Memorial Airport (28 miles)

  • Lowest 18 February, 2026

    19.4 °F

  • Average February

    35.1 °F

  • Highest 5 February, 2026

    59 °F

Climate (2021–Present)

Hailey, Friedman Memorial Airport (28 miles)

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  • Average Low 2021–2026

    34.5 °F

  • Average 2021–2026

    42.7 °F

  • Average High 2021–2026

    56.4 °F
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