Hazardous Weather Conditions

Current conditions at

Sioux City, Sioux Gateway Airport (KSUX)

Lat: 42.4°NLon: 96.38°WElev: 1099ft.

Overcast

57°F

14°C

Humidity 67%
Wind Speed SE 8 mph
Barometer 30.06 in (1017.9 mb)
Dewpoint 46°F (8°C)
Visibility 10.00 mi
Last update 21 May 10:52 pm CDT
Extended Forecast for

Sioux City IA

  • Tonight

    Tonight: Showers and thunderstorms likely, mainly before 3am, then showers likely and possibly a thunderstorm after 4am.  Cloudy, with a low around 47. East wind around 10 mph, with gusts as high as 20 mph.  Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 47 °F

    Chance
    Showers then
    Showers
    Likely

  • Friday

    Friday: Showers and possibly a thunderstorm.  High near 65. Southeast wind 10 to 15 mph, with gusts as high as 30 mph.  Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.

    High: 65 °F

    Showers

  • Friday Night

    Friday Night: A 30 percent chance of showers, mainly before 8pm.  Mostly cloudy, with a low around 45. South wind around 5 mph becoming west after midnight.

    Low: 45 °F

    Chance
    Showers then
    Partly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 72. West northwest wind around 5 mph.

    High: 72 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 48. Calm wind becoming south around 5 mph.

    Low: 48 °F

    Partly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 80. South wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 80 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 55.

    Low: 55 °F

    Mostly Clear

  • Memorial Day

    Memorial Day: Sunny, with a high near 86.

    High: 86 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 57.

    Low: 57 °F

    Mostly Clear

Detailed Forecast

Tonight
Showers and thunderstorms likely, mainly before 3am, then showers likely and possibly a thunderstorm after 4am. Cloudy, with a low around 47. East wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Friday
Showers and possibly a thunderstorm. High near 65. Southeast wind 10 to 15 mph, with gusts as high as 30 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.
Friday Night
A 30 percent chance of showers, mainly before 8pm. Mostly cloudy, with a low around 45. South wind around 5 mph becoming west after midnight.
Saturday
Partly sunny, with a high near 72. West northwest wind around 5 mph.
Saturday Night
Partly cloudy, with a low around 48. Calm wind becoming south around 5 mph.
Sunday
Sunny, with a high near 80. South wind 5 to 10 mph, with gusts as high as 20 mph.
Sunday Night
Mostly clear, with a low around 55.
Memorial Day
Sunny, with a high near 86.
Monday Night
Mostly clear, with a low around 57.
Tuesday
Mostly sunny, with a high near 85.
Tuesday Night
Partly cloudy, with a low around 58.
Wednesday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 83.
Wednesday Night
A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 59.
Thursday
A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 82.
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ABOUT THIS FORECAST

 
Point Forecast:
Sioux City IA
 42.5°N 96.39°W (Elev. 1099 ft)
10:33 pm CDT May 21, 2026
10pm CDT May 21, 2026-6pm CDT May 28, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

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