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

60°F

16°C

Humidity 86%
Wind Speed SE 12 mph
Barometer 29.95 in (1014.3 mb)
Dewpoint 56°F (13°C)
Visibility 10.00 mi
Last update 1 Nov 10:52 pm CST
Extended Forecast for

Jefferson SD

  • Tonight

    Tonight: Showers, with thunderstorms also possible after 3am. Patchy fog after 2am. Low around 58. Breezy, with a southeast wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 100%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 58 °F

    Showers and
    Patchy Fog

  • Monday

    Monday: Showers and possibly a thunderstorm before 3pm, then a chance of showers and thunderstorms after 4pm. Patchy fog before 10am. High near 73. Breezy, with a south wind 15 to 25 mph, with gusts as high as 35 mph. Chance of precipitation is 100%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 73 °F

    Showers and
    Patchy Fog
    then Chance
    Showers and
    Breezy

  • Monday Night

    Monday Night: Showers likely, mainly between 3am and 5am. Mostly cloudy, with a low around 48. South wind 5 to 10 mph becoming northwest after midnight. Winds could gust as high as 20 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 48 °F

    Showers
    Likely

  • Tuesday

    Tuesday: Showers, mainly after 10am. Temperature falling to around 49 by 8am. Breezy, with a northwest wind 10 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 80%.

    High: 55 °F⇓

    Showers and
    Breezy

  • Tuesday Night

    Tuesday Night: Showers likely, mainly before midnight. Mostly cloudy, with a low around 39. West northwest wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 60%.

    Low: 39 °F

    Showers
    Likely then
    Chance
    Showers

  • Wednesday

    Wednesday: A 40 percent chance of showers, mainly before noon. Mostly cloudy, with a high near 51. West northwest wind around 15 mph, with gusts as high as 25 mph.

    High: 51 °F

    Chance
    Showers

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 36.

    Low: 36 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly cloudy, with a high near 52.

    High: 52 °F

    Mostly Cloudy

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 37.

    Low: 37 °F

    Partly Cloudy

Detailed Forecast

Tonight
Showers, with thunderstorms also possible after 3am. Patchy fog after 2am. Low around 58. Breezy, with a southeast wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 100%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Monday
Showers and possibly a thunderstorm before 3pm, then a chance of showers and thunderstorms after 4pm. Patchy fog before 10am. High near 73. Breezy, with a south wind 15 to 25 mph, with gusts as high as 35 mph. Chance of precipitation is 100%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Monday Night
Showers likely, mainly between 3am and 5am. Mostly cloudy, with a low around 48. South wind 5 to 10 mph becoming northwest after midnight. Winds could gust as high as 20 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.
Tuesday
Showers, mainly after 10am. Temperature falling to around 49 by 8am. Breezy, with a northwest wind 10 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 80%.
Tuesday Night
Showers likely, mainly before midnight. Mostly cloudy, with a low around 39. West northwest wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 60%.
Wednesday
A 40 percent chance of showers, mainly before noon. Mostly cloudy, with a high near 51. West northwest wind around 15 mph, with gusts as high as 25 mph.
Wednesday Night
Mostly cloudy, with a low around 36.
Thursday
Mostly cloudy, with a high near 52.
Thursday Night
Partly cloudy, with a low around 37.
Friday
Partly sunny, with a high near 54.
Friday Night
Partly cloudy, with a low around 38.
Saturday
Partly sunny, with a high near 58.
Saturday Night
Partly cloudy, with a low around 41.
Sunday
Mostly sunny, with a high near 56.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Jefferson SD
 42.61°N 96.56°W (Elev. 1125 ft)
Last Update:
10:48 pm CST Nov 1, 2026
Forecast Valid:
11pm CST Nov 1, 2026-6pm CST Nov 8, 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