Gateway Lake Weather Forecast

    • 42
    • 90

    Breezy

    • 30
    • 56

    Partly Sunny

    • 38
    • 57

    Mostly Cloudy

    • 37
    • 65

    Mostly Cloudy

    • 44
    • 72

    Partly Sunny

    • 25
    • 65

    Breezy

Today 21 Mar Dakota

Sunny. Highs around 90. Southwest Winds 10 to 15 Mph.

Tonight 21 Mar Dakota

Partly cloudy in the Evening, then becoming mostly cloudy. Breezy with Lows in the lower 40s. South Winds 10 to 15 Mph with Gusts up to 25 Mph, becoming north 15 to 25 Mph with Gusts up to 45 Mph after midnight.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Gateway Lake Temperature Statistics

March Temperature

Sioux City, Sioux Gateway Airport (3.1 miles)

  • Lowest 16 March, 2026

    5.6 °F

  • Average March

    39.3 °F

  • Highest 9 March, 2026

    72.6 °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

    39.1 °F

  • Average 2021–2026

    51.1 °F

  • Average High 2021–2026

    63.2 °F
Get WillyWeather+ to remove ads