Dakota Dunes Weather Forecast

    • 67
    • 92

    Mostly Sunny

    • 65
    • 91

    Thunderstorms Likely

    • 58
    • 81

    Chance Thunderstorms

    • 59
    • 75

    Partly Sunny

    • 65
    • 81

    Chance Thunderstorms

    • 64
    • 84

    Chance Thunderstorms

    • 66
    • 83

    Chance Rain Showers

Today 14 Jul Union

Sunny. Highs around 90. South Winds 5 to 10 Mph with Gusts up to 20 Mph. Heat index Values in the upper 90s.

Tonight 14 Jul Union

Partly cloudy. Lows in the upper 60s. South Winds 10 to 15 Mph.

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  • Temperature Real-Time

Dakota Dunes Temperature Statistics

July Temperature

Sioux City, Sioux Gateway Airport (7.5 miles)

  • Lowest 1 July, 2025

    59 °F

  • Average July

    76.1 °F

  • Highest 3 July, 2025

    93 °F

Climate (2020–Present)

Sioux City, Sioux Gateway Airport (7.5 miles)

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  • Average Low 2020–2025

    38.7 °F

  • Average 2020–2025

    50.6 °F

  • Average High 2020–2025

    62.6 °F
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