Gateway Lake Weather Forecast

    • 57
    • 62

    Chance Thunderstorms

    • 54
    • 80

    Slight Chance Thunderstorms

    • 54
    • 82

    Chance Rain Showers

    • 48
    • 83

    Chance Rain Showers

    • 50
    • 78

    Chance Rain Showers

    • 46
    • 82

    Chance Rain Showers

Today 11 Apr Dakota

Cloudy. A slight chance of Showers Early, then a chance of Showers and Thunderstorms. Patchy fog. Highs in the lower 60s. Southeast Winds 15 to 20 Mph. Gusts up to 35 Mph. Chance of rain 40 percent.

Tonight 11 Apr Dakota

Patchy fog in the evening. Mostly cloudy with a slight chance of Thunderstorms. A chance of Showers in the Evening, then a slight chance of Showers and drizzle after midnight. Breezy and not as cool. Near steady temperature in the upper 50s. South Winds 15 to 25 Mph with Gusts up to 35 Mph. Chance of rain 30 percent.

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  • Temperature Forecast NOAA

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Gateway Lake Temperature Statistics

April Temperature

Sioux City, Sioux Gateway Airport (3.1 miles)

  • Lowest 9 April, 2026

    28.9 °F

  • Average April

    42.3 °F

  • Highest 5 April, 2026

    66.7 °F

Climate (2021–Present)

Sioux City, Sioux Gateway Airport (3.1 miles)

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  • Average Low 2021–2026

    39 °F

  • Average 2021–2026

    51.1 °F

  • Average High 2021–2026

    63.2 °F
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