Dakota Dunes Weather Forecast

    • 32
    • 61

    Sunny

    • 35
    • 60

    Mostly Sunny

    • 43
    • 62

    Partly Sunny

    • 49
    • 62

    Mostly Cloudy

    • 50
    • 63

    Chance Rain Showers

    • 41
    • 61

    Chance Rain Showers

Today 22 Oct Union

Widespread frost in the morning. Sunny. Highs in the upper 50s. Northwest Winds 5 to 10 Mph.

Tonight 22 Oct Union

Mostly clear. Widespread frost after midnight. Lows in the lower 30s. Northwest Winds 5 to 10 Mph.

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  • Temperature Real-Time

Dakota Dunes Temperature Statistics

October Temperature

Sioux City, Sioux Gateway Airport (7.5 miles)

  • Lowest 19 October, 2025

    35.1 °F

  • Average October

    62.1 °F

  • Highest 2 October, 2025

    89.1 °F

Climate (2020–Present)

Sioux City, Sioux Gateway Airport (7.5 miles)

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  • Average Low 2020–2025

    38.9 °F

  • Average 2020–2025

    50.8 °F

  • Average High 2020–2025

    62.7 °F
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