National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Sioux City, Sioux Gateway Airport (KSUX)

Lat: 42.4°NLon: 96.38°WElev: 1099ft.

Fair

73°F

23°C

Humidity 51%
Wind Speed SE 8 mph
Barometer 30.03 in (1016.3 mb)
Dewpoint 54°F (12°C)
Visibility 10.00 mi
Last update 1 Oct 8:52 pm CDT
Extended Forecast for

Jefferson SD

  • Tonight

    Tonight: A chance of sprinkles. Mostly clear, with a low around 61. South southeast wind around 10 mph.

    Low: 61 °F

    Chance
    Sprinkles

  • Thursday

    Thursday: Sunny, with a high near 88. South wind 5 to 10 mph.

    High: 88 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 61. South southeast wind around 5 mph.

    Low: 61 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 91. South wind 5 to 15 mph, with gusts as high as 25 mph.

    High: 91 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 70. South wind around 15 mph, with gusts as high as 25 mph.

    Low: 70 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 91. Breezy, with a south wind 15 to 25 mph, with gusts as high as 35 mph.

    High: 91 °F

    Sunny and
    Breezy

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 65. Breezy.

    Low: 65 °F

    Partly Cloudy
    and Breezy

  • Sunday

    Sunday: Mostly sunny, with a high near 78.

    High: 78 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 48.

    Low: 48 °F

    Mostly Clear

Detailed Forecast

Tonight
A chance of sprinkles. Mostly clear, with a low around 61. South southeast wind around 10 mph.
Thursday
Sunny, with a high near 88. South wind 5 to 10 mph.
Thursday Night
Mostly clear, with a low around 61. South southeast wind around 5 mph.
Friday
Sunny, with a high near 91. South wind 5 to 15 mph, with gusts as high as 25 mph.
Friday Night
Mostly clear, with a low around 70. South wind around 15 mph, with gusts as high as 25 mph.
Saturday
Sunny, with a high near 91. Breezy, with a south wind 15 to 25 mph, with gusts as high as 35 mph.
Saturday Night
Partly cloudy, with a low around 65. Breezy.
Sunday
Mostly sunny, with a high near 78.
Sunday Night
Mostly clear, with a low around 48.
Monday
Mostly sunny, with a high near 67.
Monday Night
Partly cloudy, with a low around 49.
Tuesday
Mostly sunny, with a high near 69.
Tuesday Night
Mostly clear, with a low around 43.
Wednesday
Mostly sunny, with a high near 69.
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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:
9:09 pm CDT Oct 1, 2025
Forecast Valid:
9pm CDT Oct 1, 2025-6pm CDT Oct 8, 2025
 
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