McCook Lake Weather Forecast

    • 10
    • 32

    Mostly Cloudy

    • 18
    • 25

    Mostly Cloudy

    • 18
    • 33

    Mostly Cloudy

    • 16
    • 37

    Partly Sunny

    • 21
    • 39

    Chance Snow

    • 10
    • 36

    Partly Sunny

    • 13
    • 35

    Partly Sunny

Today 3 Feb Union

Cloudy with scattered Flurries with patchy very light freezing drizzle. Much cooler with Highs in the upper 20s. North Winds 15 to 20 Mph with Gusts up to 30 Mph.

Tonight 3 Feb Union

Mostly cloudy. Much Colder with Lows around 9 above. North Winds 15 to 20 Mph.

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McCook Lake Temperature Statistics

February Temperature

Sioux City, Sioux Gateway Airport (11.2 miles)

  • Lowest 1 February, 2025

    26.1 °F

  • Average February

    35.3 °F

  • Highest 1 February, 2025

    44.1 °F

Climate (2020–Present)

Sioux City, Sioux Gateway Airport (11.2 miles)

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  • Average Low 2020–2025

    39 °F

  • Average 2020–2025

    50.6 °F

  • Average High 2020–2025

    62.4 °F
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