North Sioux City Weather Forecast

    • 58
    • 83

    Chance Rain Showers

    • 51
    • 70

    Mostly Sunny

    • 59
    • 79

    Chance Thunderstorms

    • 57
    • 84

    Partly Sunny

    • 50
    • 71

    Chance Thunderstorms

    • 61
    • 74

    Chance Thunderstorms

    • 56
    • 73

    Slight Chance Thunderstorms

Today 22 Sep Union

Mostly clear. Lows around 51. Southwest Winds 5 to 10 Mph.

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North Sioux City Temperature Statistics

September Temperature

Sioux City, Sioux Gateway Airport (9.9 miles)

  • Lowest 4 September, 2019

    50 °F
  • Average September

    70.9 °F
  • Highest 10 September, 2019

    88 °F

Climate (2010–Present)

Sioux City, Sioux Gateway Airport (9.9 miles)

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  • Average Low 2010–Present

    40.5 °F
  • Average 2010–Present

    50.6 °F
  • Average High 2010–Present

    60.9 °F
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