South Sioux City Weather Forecast

    • 33
    • 50

    Rain Likely

    • 40
    • 54

    Rain Showers

    • 29
    • 54

    Chance Rain

    • 32
    • 54

    Mostly Cloudy

    • 32
    • 57

    Slight Chance Rain

    • 28
    • 55

    Partly Sunny

Today 31 Mar Dakota

Mostly sunny. Not as cool with Highs around 50. North Winds 5 to 10 Mph.

Tonight 31 Mar Dakota

Partly cloudy in the Evening, then mostly cloudy with rain likely after midnight. Lows in the lower 30s. Southeast Winds 10 to 15 Mph. Chance of rain 70 percent.

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South Sioux City Temperature Statistics

March Temperature

Sioux City, Sioux Gateway Airport (4.3 miles)

  • Lowest 2 March, 2025

    18.8 °F

  • Average March

    43.2 °F

  • Highest 28 March, 2025

    89.7 °F

Climate (2020–Present)

Sioux City, Sioux Gateway Airport (4.3 miles)

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  • Average Low 2020–2025

    38.8 °F

  • Average 2020–2025

    50.6 °F

  • Average High 2020–2025

    62.5 °F
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