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Current conditions at

Sioux City, Sioux Gateway Airport (KSUX)

Lat: 42.4°NLon: 96.38°WElev: 1099ft.

Fair

90°F

32°C

Humidity 29%
Wind Speed S 18 G 30 mph
Barometer 29.69 in (1004.6 mb)
Dewpoint 54°F (12°C)
Visibility 10.00 mi
Heat Index88°F (31°C)
Last update 11 Oct 3:52 pm CDT
Extended Forecast for

Jefferson SD

  • Tonight

    Tonight: Partly cloudy, with a low around 65. South wind 5 to 10 mph becoming west after midnight.

    Low: 65 °F

    Partly Cloudy

  • Columbus Day

    Columbus Day: Sunny, with a high near 84. South wind 5 to 15 mph becoming west in the afternoon. Winds could gust as high as 20 mph.

    High: 84 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 52. North northwest wind 10 to 15 mph, with gusts as high as 25 mph.

    Low: 52 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly cloudy, then gradually becoming sunny, with a high near 71. North wind 5 to 10 mph.

    High: 71 °F

    Decreasing
    Clouds

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 50. North wind around 5 mph.

    Low: 50 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 67. North northeast wind 5 to 10 mph.

    High: 67 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: A 50 percent chance of showers after 1am. Partly cloudy, with a low around 50.

    Low: 50 °F

    Partly Cloudy
    then Chance
    Showers

  • Thursday

    Thursday: Showers likely, mainly before 1pm. Mostly cloudy, with a high near 63. Chance of precipitation is 60%.

    High: 63 °F

    Showers
    Likely

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 45. Breezy.

    Low: 45 °F

    Mostly Cloudy
    then Partly
    Cloudy and
    Breezy

Detailed Forecast

Tonight
Partly cloudy, with a low around 65. South wind 5 to 10 mph becoming west after midnight.
Columbus Day
Sunny, with a high near 84. South wind 5 to 15 mph becoming west in the afternoon. Winds could gust as high as 20 mph.
Monday Night
Mostly clear, with a low around 52. North northwest wind 10 to 15 mph, with gusts as high as 25 mph.
Tuesday
Mostly cloudy, then gradually becoming sunny, with a high near 71. North wind 5 to 10 mph.
Tuesday Night
Partly cloudy, with a low around 50. North wind around 5 mph.
Wednesday
Mostly sunny, with a high near 67. North northeast wind 5 to 10 mph.
Wednesday Night
A 50 percent chance of showers after 1am. Partly cloudy, with a low around 50.
Thursday
Showers likely, mainly before 1pm. Mostly cloudy, with a high near 63. Chance of precipitation is 60%.
Thursday Night
Mostly cloudy, with a low around 45. Breezy.
Friday
Mostly sunny, with a high near 57. Breezy.
Friday Night
Mostly clear, with a low around 35.
Saturday
Sunny, with a high near 60.
Saturday Night
Mostly clear, with a low around 43.
Sunday
Sunny, with a high near 69.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Jefferson SD
 42.61°N 96.56°W (Elev. 1125 ft)
Last Update:
2:43 pm CDT Oct 11, 2026
Forecast Valid:
4pm CDT Oct 11, 2026-6pm CDT Oct 18, 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