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Hazardous Weather Conditions

Current conditions at

Sioux City, Sioux Gateway Airport (KSUX)

Lat: 42.4°NLon: 96.38°WElev: 1099ft.

Fair

88°F

31°C

Humidity 33%
Wind Speed N 14 mph
Barometer 29.54 in (999.6 mb)
Dewpoint 55°F (13°C)
Visibility 10.00 mi
Heat Index86°F (30°C)
Last update 15 May 7:52 pm CDT
Extended Forecast for

North Sioux City SD

Severe T-storm Watch until May 16, 01:00am
Click here for hazard details and duration
Severe T-storm Watch
  •  
    Severe T-storm Watch until May 16, 01:00am

    NOW until 1:00am Sat

    Severe T-storm Watch

  • Tonight

    Low: 55 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 86. North wind 5 to 15 mph becoming east in the afternoon. Winds could gust as high as 20 mph.

    High: 86 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Showers and thunderstorms likely, mainly after 2am. Mostly cloudy, with a low around 56. East wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 56 °F

    Slight Chance
    T-storms then
    T-storms
    Likely

  • Sunday

    Sunday: Showers and thunderstorms likely, mainly after 4pm. Cloudy, then gradually becoming mostly sunny, with a high near 89. Breezy, with a south wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 70%.

    High: 89 °F

    Breezy.
    Chance
    T-storms then
    T-storms
    Likely

  • Sunday Night

    Sunday Night: Showers and thunderstorms, mainly before 1am. Some of the storms could be severe. Low around 54. South southeast wind 10 to 15 mph becoming west northwest after midnight. Winds could gust as high as 25 mph. Chance of precipitation is 80%.

    Low: 54 °F

    Severe
    Thunderstorms

  • Monday

    Monday: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 1pm. High near 77. North northwest wind 10 to 15 mph becoming east northeast in the afternoon. Winds could gust as high as 30 mph. Chance of precipitation is 80%.

    High: 77 °F

    Chance
    Showers then
    Showers

  • Monday Night

    Monday Night: A 50 percent chance of showers. Mostly cloudy, with a low around 43. Breezy.

    Low: 43 °F

    Chance
    Showers and
    Breezy

  • Tuesday

    Tuesday: Partly sunny, with a high near 61. Breezy.

    High: 61 °F

    Partly Sunny
    and Breezy

Detailed Forecast

Tonight
Partly cloudy, with a low around 55. North northwest wind 5 to 10 mph becoming northeast after midnight. Winds could gust as high as 20 mph.
Saturday
Mostly sunny, with a high near 86. North wind 5 to 15 mph becoming east in the afternoon. Winds could gust as high as 20 mph.
Saturday Night
Showers and thunderstorms likely, mainly after 2am. Mostly cloudy, with a low around 56. East wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.
Sunday
Showers and thunderstorms likely, mainly after 4pm. Cloudy, then gradually becoming mostly sunny, with a high near 89. Breezy, with a south wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 70%.
Sunday Night
Showers and thunderstorms, mainly before 1am. Some of the storms could be severe. Low around 54. South southeast wind 10 to 15 mph becoming west northwest after midnight. Winds could gust as high as 25 mph. Chance of precipitation is 80%.
Monday
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 1pm. High near 77. North northwest wind 10 to 15 mph becoming east northeast in the afternoon. Winds could gust as high as 30 mph. Chance of precipitation is 80%.
Monday Night
A 50 percent chance of showers. Mostly cloudy, with a low around 43. Breezy.
Tuesday
Partly sunny, with a high near 61. Breezy.
Tuesday Night
Partly cloudy, with a low around 38.
Wednesday
Mostly sunny, with a high near 66.
Wednesday Night
Partly cloudy, with a low around 43.
Thursday
Partly sunny, with a high near 73.
Thursday Night
Partly cloudy, with a low around 48.
Friday
Mostly sunny, with a high near 78.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
North Sioux City SD
 42.52°N 96.47°W (Elev. 1161 ft)
Last Update:
7:18 pm CDT May 15, 2026
Forecast Valid:
8pm CDT May 15, 2026-6pm CDT May 22, 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