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.

Fair and Windy

57°F

14°C

Humidity 16%
Wind Speed W 31 G 43 mph
Barometer 29.51 in (999.3 mb)
Dewpoint 11°F (-12°C)
Visibility 10.00 mi
Last update 18 Feb 12:52 pm CST
Extended Forecast for

Sergeant Bluff IA

Red Flag Warning February 18, 12:55pm until February 18, 06:00pm
Click here for hazard details and duration
Red Flag Warning
  •  
    Red Flag Warning February 18, 12:55pm until February 18, 06:00pm

    NOW until 6:00pm Wed

    Red Flag Warning

  • This Afternoon

    High: 54 °F

    Sunny and
    Breezy

  • Tonight

    Tonight: Partly cloudy, with a low around 25. Northwest wind around 10 mph becoming northeast after midnight. Winds could gust as high as 20 mph.

    Low: 25 °F

    Partly Cloudy

  • Thursday

    Thursday: Snow, mainly after 2pm. The snow could be heavy at times. High near 39. Breezy, with a northeast wind 15 to 20 mph becoming north northwest in the afternoon. Winds could gust as high as 30 mph. Chance of precipitation is 80%. New snow accumulation of around 3 inches.

    High: 39 °F

    Breezy.
    Chance Snow
    then Heavy
    Snow

  • Thursday Night

    Thursday Night: Snow likely, mainly before midnight. Cloudy, with a low around 16. Northwest wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 60%. New snow accumulation of around 2 inches.

    Low: 16 °F

    Snow Likely

  • Friday

    Friday: Mostly sunny, with a high near 29. Northwest wind 10 to 15 mph, with gusts as high as 20 mph.

    High: 29 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 10. Northwest wind around 5 mph.

    Low: 10 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 31.

    High: 31 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 9.

    Low: 9 °F

    Mostly Clear

Detailed Forecast

This Afternoon
Sunny, with a high near 54. Breezy, with a west wind 20 to 25 mph decreasing to 15 to 20 mph. Winds could gust as high as 40 mph.
Tonight
Partly cloudy, with a low around 25. Northwest wind around 10 mph becoming northeast after midnight. Winds could gust as high as 20 mph.
Thursday
Snow, mainly after 2pm. The snow could be heavy at times. High near 39. Breezy, with a northeast wind 15 to 20 mph becoming north northwest in the afternoon. Winds could gust as high as 30 mph. Chance of precipitation is 80%. New snow accumulation of around 3 inches.
Thursday Night
Snow likely, mainly before midnight. Cloudy, with a low around 16. Northwest wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 60%. New snow accumulation of around 2 inches.
Friday
Mostly sunny, with a high near 29. Northwest wind 10 to 15 mph, with gusts as high as 20 mph.
Friday Night
Mostly cloudy, with a low around 10. Northwest wind around 5 mph.
Saturday
Mostly sunny, with a high near 31.
Saturday Night
Mostly clear, with a low around 9.
Sunday
Sunny, with a high near 29.
Sunday Night
Mostly clear, with a low around 3.
Monday
Mostly sunny, with a high near 32.
Monday Night
Partly cloudy, with a low around 19.
Tuesday
Mostly sunny, with a high near 54.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Sergeant Bluff IA
 42.39°N 96.35°W (Elev. 1089 ft)
Last Update:
12:34 pm CST Feb 18, 2026
Forecast Valid:
12pm CST Feb 18, 2026-6pm CST Feb 24, 2026
 
Forecast Discussion
 
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Additional Resources

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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