National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Sioux City, Sioux Gateway Airport (KSUX)

Lat: 42.4°NLon: 96.38°WElev: 1099ft.

Mostly Cloudy

71°F

22°C

Humidity 81%
Wind Speed E 7 mph
Barometer 30.02 in (1015.6 mb)
Dewpoint 65°F (18°C)
Visibility 10.00 mi
Last update 19 Jul 1:52 am CDT
Extended Forecast for

South Sioux City NE

  • Overnight

    Overnight: Mostly clear, with a low around 68. East wind around 5 mph.

    Low: 68 °F

    Mostly Clear

  • Sunday

    Sunday: Partly sunny, with a high near 92. South southeast wind around 5 mph.

    High: 92 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 75. South southeast wind around 10 mph.

    Low: 75 °F

    Mostly Clear

  • Monday

    Monday: A 30 percent chance of showers and thunderstorms, mainly between 3pm and 4pm. Sunny, then becoming partly sunny during the afternoon and hot, with a high near 100. Heat index values as high as 105. South wind 5 to 10 mph becoming west southwest in the morning.

    High: 100 °F

    Sunny then
    Chance
    Showers

  • Monday Night

    Monday Night: A 20 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 72. West southwest wind around 5 mph becoming north after midnight.

    Low: 72 °F

    Slight Chance
    T-storms

  • Tuesday

    Tuesday: Sunny, with a high near 90. North northwest wind 5 to 15 mph, with gusts as high as 25 mph.

    High: 90 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 64.

    Low: 64 °F

    Mostly Clear

  • Wednesday

    Wednesday: Partly sunny, with a high near 84.

    High: 84 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: A 30 percent chance of showers after 1am. Mostly cloudy, with a low around 63.

    Low: 63 °F

    Mostly Cloudy
    then Chance
    Showers

Detailed Forecast

Overnight
Mostly clear, with a low around 68. East wind around 5 mph.
Sunday
Partly sunny, with a high near 92. South southeast wind around 5 mph.
Sunday Night
Mostly clear, with a low around 75. South southeast wind around 10 mph.
Monday
A 30 percent chance of showers and thunderstorms, mainly between 3pm and 4pm. Sunny, then becoming partly sunny during the afternoon and hot, with a high near 100. Heat index values as high as 105. South wind 5 to 10 mph becoming west southwest in the morning.
Monday Night
A 20 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 72. West southwest wind around 5 mph becoming north after midnight.
Tuesday
Sunny, with a high near 90. North northwest wind 5 to 15 mph, with gusts as high as 25 mph.
Tuesday Night
Mostly clear, with a low around 64.
Wednesday
Partly sunny, with a high near 84.
Wednesday Night
A 30 percent chance of showers after 1am. Mostly cloudy, with a low around 63.
Thursday
A 40 percent chance of showers before 1pm. Mostly cloudy, with a high near 84.
Thursday Night
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 65.
Friday
Partly sunny, with a high near 86.
Friday Night
Partly cloudy, with a low around 65.
Saturday
Mostly sunny, with a high near 92.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
South Sioux City NE
 42.48°N 96.41°W (Elev. 1093 ft)
Last Update:
1:33 am CDT Jul 19, 2026
Forecast Valid:
2am CDT Jul 19, 2026-6pm CDT Jul 25, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation