Gateway Lake Weather Forecast

    • 65
    • 88

    Slight Chance Thunderstorms

    • 65
    • 88

    Increasing Clouds

    • 67
    • 89

    Partly Sunny

    • 69
    • 91

    Chance Thunderstorms

    • 66
    • 90

    Rain Showers Likely

    • 63
    • 86

    Slight Chance Thunderstorms

    • 65
    • 88

    Slight Chance Thunderstorms

Today 4 Jul Dakota

Mostly sunny. Highs in the upper 80s. Northwest Winds around 5 Mph.

Tonight 4 Jul Dakota

Partly cloudy with a slight chance of Showers and Thunderstorms. Lows in the mid 60s. East Winds around 5 Mph, becoming north around 5 Mph after midnight. Chance of rain 20 percent.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Gateway Lake Temperature Statistics

July Temperature

Sioux City, Sioux Gateway Airport (3.1 miles)

  • Lowest 1 July, 2026

    70.6 °F

  • Average July

    80 °F

  • Highest 2 July, 2026

    89.1 °F

Climate (2021–2026)

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

    51.2 °F

  • Average High 2021–2026

    63.4 °F
Get WillyWeather+ to remove ads