McCook Lake Weather Forecast

    • 39
    • 55

    Rain Showers

    • 38
    • 49

    Chance Rain Showers

    • 34
    • 50

    Slight Chance Rain Showers

    • 33
    • 50

    Mostly Cloudy

    • 37
    • 56

    Partly Sunny

    • 37
    • 56

    Mostly Sunny

Today 3 Nov Union

Showers. Much cooler. Near steady temperature in the upper 40s. Temperature falling into the upper 40s late. Northwest Winds around 20 Mph with Gusts up to 30 Mph. Chance of rain near 100 percent.

Tonight 3 Nov Union

Showers, cooler with Lows in the upper 30s. Northwest Winds 15 to 20 Mph with Gusts up to 30 Mph. Chance of rain 90 percent.

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McCook Lake Temperature Statistics

November Temperature

Sioux City, Sioux Gateway Airport (11.2 miles)

  • Lowest 1 November, 2026

    55 °F

  • Average November

    59 °F

  • Highest 1 November, 2026

    63 °F

Climate (2021–2026)

Sioux City, Sioux Gateway Airport (11.2 miles)

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  • Average Low 2021–2026

    39.3 °F

  • Average 2021–2026

    51.4 °F

  • Average High 2021–2026

    63.5 °F
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