Gateway Lake Weather Forecast

    • 39
    • 72

    Chance Rain Showers

    • 28
    • 61

    Partly Sunny

    • 14
    • 41

    Snow Likely

    • 12
    • 29

    Partly Sunny

    • 9
    • 34

    Mostly Sunny

    • 7
    • 29

    Partly Sunny

Today 17 Feb Dakota

Mostly sunny. A slight chance of rain this afternoon. Breezy with Highs in the lower 70s. South Winds 15 to 25 Mph with Gusts up to 35 Mph. Chance of rain 20 percent.

Tonight 17 Feb Dakota

Mostly cloudy with a chance of rain in the Evening, then mostly clear after midnight. Breezy with Lows in the upper 30s. West Winds 15 to 25 Mph with Gusts up to 40 Mph. Chance of rain 40 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Gateway Lake Temperature Statistics

February Temperature

Sioux City, Sioux Gateway Airport (3.1 miles)

  • Lowest 1 February, 2026

    12.7 °F

  • Average February

    37.5 °F

  • Highest 9 February, 2026

    75.7 °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

    63.1 °F
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