Gateway Lake Weather Forecast

    • 27
    • 45

    Breezy

    • 30
    • 62

    Mostly Sunny

    • 22
    • 46

    Chance Rain/Snow

    • 35
    • 45

    Chance Rain/Snow

    • 39
    • 71

    Chance Rain Showers

    • 36
    • 57

    Rain Showers Likely

Today 4 Apr Dakota

Mostly cloudy. Isolated rain and snow Showers early. Breezy with Highs in the mid 40s. Northwest Winds around 25 Mph with Gusts up to 35 Mph. Chance of precipitation 20 percent.

Tonight 4 Apr Dakota

Partly cloudy in the Evening, then clearing. Breezy with Lows in the upper 20s. Northwest Winds 20 to 25 Mph with Gusts up to 35 Mph, Diminishing to 5 to 10 Mph with Gusts up to 20 Mph after midnight.

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  • Temperature Real-Time

Gateway Lake Temperature Statistics

April Temperature

Sioux City, Sioux Gateway Airport (3.1 miles)

  • Lowest 1 April, 2026

    30.9 °F

  • Average April

    39.8 °F

  • Highest 1 April, 2026

    50 °F

Climate (2021–Present)

Sioux City, Sioux Gateway Airport (3.1 miles)

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  • Average Low 2021–2026

    39.1 °F

  • Average 2021–2026

    51.1 °F

  • Average High 2021–2026

    63.2 °F
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