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.

Overcast

40°F

4°C

Humidity 86%
Wind Speed Calm
Barometer 30.18 in (1022.8 mb)
Dewpoint 36°F (2°C)
Visibility 10.00 mi
Last update 4 Mar 12:52 am CST
Extended Forecast for

Sioux City IA

  • Overnight

    Overnight: Patchy fog. Otherwise, mostly cloudy, with a low around 31. Calm wind.

    Low: 31 °F

    Patchy Fog

  • Wednesday

    Wednesday: Patchy fog before 8am. Otherwise, cloudy, then gradually becoming mostly sunny, with a high near 55. Calm wind becoming south southeast around 5 mph in the afternoon.

    High: 55 °F

    Patchy Fog
    then Partly
    Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 34. South southeast wind around 5 mph.

    Low: 34 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 64. South southeast wind 5 to 15 mph, with gusts as high as 25 mph.

    High: 64 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: A chance of rain and thunderstorms before midnight, then rain and possibly a thunderstorm between midnight and 3am, then rain after 3am. Low around 46. South southeast wind 10 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 90%.

    Low: 46 °F

    Chance Rain
    then Rain

  • Friday

    Friday: Rain, with thunderstorms also possible after 3pm. High near 63. Southeast wind 10 to 15 mph becoming northwest in the morning. Winds could gust as high as 30 mph. Chance of precipitation is 80%.

    High: 63 °F

    Rain

  • Friday Night

    Friday Night: A chance of rain before 3am, then a slight chance of snow. Some thunder is also possible. Mostly cloudy, with a low around 28. Chance of precipitation is 50%.

    Low: 28 °F

    Chance Rain
    then Slight
    Chance
    Rain/Snow

  • Saturday

    Saturday: Sunny, with a high near 54.

    High: 54 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 36.

    Low: 36 °F

    Mostly Clear

Detailed Forecast

Overnight
Patchy fog. Otherwise, mostly cloudy, with a low around 31. Calm wind.
Wednesday
Patchy fog before 8am. Otherwise, cloudy, then gradually becoming mostly sunny, with a high near 55. Calm wind becoming south southeast around 5 mph in the afternoon.
Wednesday Night
Mostly cloudy, with a low around 34. South southeast wind around 5 mph.
Thursday
Mostly sunny, with a high near 64. South southeast wind 5 to 15 mph, with gusts as high as 25 mph.
Thursday Night
A chance of rain and thunderstorms before midnight, then rain and possibly a thunderstorm between midnight and 3am, then rain after 3am. Low around 46. South southeast wind 10 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 90%.
Friday
Rain, with thunderstorms also possible after 3pm. High near 63. Southeast wind 10 to 15 mph becoming northwest in the morning. Winds could gust as high as 30 mph. Chance of precipitation is 80%.
Friday Night
A chance of rain before 3am, then a slight chance of snow. Some thunder is also possible. Mostly cloudy, with a low around 28. Chance of precipitation is 50%.
Saturday
Sunny, with a high near 54.
Saturday Night
Mostly clear, with a low around 36.
Sunday
Sunny, with a high near 67.
Sunday Night
Mostly clear, with a low around 41.
Monday
Sunny, with a high near 73.
Monday Night
Partly cloudy, with a low around 40.
Tuesday
A 20 percent chance of rain. Partly sunny, with a high near 59.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Sioux City IA
 42.5°N 96.41°W (Elev. 1106 ft)
Last Update:
1:13 am CST Mar 4, 2026
Forecast Valid:
1am CST Mar 4, 2026-6pm CDT Mar 10, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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