Wynstone Weather Forecast

    • 8
    • 15

    Gradual Clearing

    • 22
    • 27

    Wintry Mix

    • 24
    • 35

    Chance Wintry Mix

    • 28
    • 42

    Mostly Cloudy

    • 17
    • 40

    Partly Sunny

    • 19
    • 35

    Mostly Cloudy

    • 12
    • 31

    Partly Sunny

Today 12 Dec Union

Partly sunny with a chance of Flurries. Cold. Near steady temperature around 12. East Winds around 5 Mph.

Tonight 12 Dec Union

Partly cloudy and cold. Near steady temperature around 9 above. East Winds 5 to 10 Mph.

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Wynstone Temperature Statistics

December Temperature

Sioux City, Sioux Gateway Airport (11.8 miles)

  • Lowest 1 December, 2024

    5.8 °F

  • Average December

    27.9 °F

  • Highest 7 December, 2024

    65.6 °F

Climate (2019–Present)

Sioux City, Sioux Gateway Airport (11.8 miles)

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  • Average Low 2019–2024

    39.1 °F

  • Average 2019–2024

    50.6 °F

  • Average High 2019–2024

    62.3 °F
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