MJ Aviation Airport II Weather Forecast

    • 40
    • 63

    Decreasing Clouds

    • 46
    • 59

    Rain Showers Likely

    • 47
    • 67

    Chance Rain Showers

    • 46
    • 64

    Chance Rain Showers

    • 45
    • 65

    Chance Rain Showers

    • 46
    • 71

    Partly Sunny

Today 22 May Union

Partly sunny. Highs in the lower 60s. Northwest Winds 10 to 15 Mph.

Tonight 22 May Union

Mostly clear in the Evening, then becoming partly cloudy. Lows around 40. Northwest Winds 5 to 10 Mph.

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MJ Aviation Airport II Temperature Statistics

May Temperature

Sioux City, Sioux Gateway Airport (24.9 miles)

  • Lowest 3 May, 2025

    32.6 °F

  • Average May

    64.2 °F

  • Highest 11 May, 2025

    90.6 °F

Climate (2020–Present)

Sioux City, Sioux Gateway Airport (24.9 miles)

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  • Average Low 2020–2025

    38.9 °F

  • Average 2020–2025

    50.7 °F

  • Average High 2020–2025

    62.7 °F
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