Gateway Lake Weather Forecast

    • 25
    • 47

    Gradual Clearing

    • 33
    • 51

    Chance Rain

    • 27
    • 52

    Partly Sunny

    • 32
    • 53

    Mostly Sunny

    • 30
    • 54

    Partly Sunny

    • 37
    • 57

    Partly Sunny

Today 10 Feb Dakota

Cloudy this Morning, then becoming partly sunny. Much cooler with Highs in the upper 40s. Northwest Winds 10 to 15 Mph with Gusts up to 25 Mph.

Tonight 10 Feb Dakota

Partly cloudy in the Evening, then clearing. Lows in the mid 20s. Northwest Winds 5 to 10 Mph, becoming west after midnight.

Graph Plots Open in Graphs

  • 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

    33.5 °F

  • Highest 5 February, 2026

    59.6 °F

Climate (2021–Present)

Sioux City, Sioux Gateway Airport (3.1 miles)

Take a look at our website widgetsAvailable free! Find Out More

  • Average Low 2021–2026

    39 °F

  • Average 2021–2026

    50.9 °F

  • Average High 2021–2026

    62.9 °F
Get WillyWeather+ to remove ads