North Sioux City Weather Forecast

    • 36
    • 56

    Becoming Sunny

    • 44
    • 64

    Increasing Clouds

    • 46
    • 59

    Rain Showers Likely

    • 47
    • 61

    Chance Rain Showers

    • 44
    • 62

    Chance Rain Showers

    • 50
    • 71

    Mostly Sunny

    • 59
    • 79

    Slight Chance Thunderstorms

Today 21 May Union

Mostly cloudy. Near steady temperature in the mid 50s. Northwest Winds 15 to 20 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

North Sioux City Temperature Statistics

May Temperature

Sioux City, Sioux Gateway Airport (9.9 miles)

  • Lowest 4 May, 2022

    36 °F
  • Average May

    61.8 °F
  • Highest 12 May, 2022

    93 °F

Climate (2010–Present)

Sioux City, Sioux Gateway Airport (9.9 miles)

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  • Average Low 2010–Present

    38 °F
  • Average 2010–Present

    48.5 °F
  • Average High 2010–Present

    59.6 °F
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