Gateway Lake Weather Forecast

    • 34
    • 63

    Increasing Clouds

    • 31
    • 61

    Partly Sunny

    • 39
    • 64

    Partly Sunny

    • 42
    • 63

    Mostly Cloudy

    • 40
    • 70

    Chance Rain

    • 29
    • 57

    Slight Chance Rain/Snow

Today 13 Feb Dakota

Sunny. Highs in the mid 60s. West Winds around 5 Mph, becoming south around 5 Mph this afternoon.

Tonight 13 Feb Dakota

Partly cloudy in the Evening, then becoming mostly cloudy. Not as cool with Lows in the mid 30s. South Winds 5 to 10 Mph.

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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

    34.8 °F

  • Highest 9 February, 2026

    73.9 °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 °F

  • Average High 2021–2026

    63 °F
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