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Hazardous Weather Conditions
Current conditions at
Sioux City, Sioux Gateway Airport (KSUX)
Lat: 42.4°NLon: 96.38°WElev: 1099ft.
Overcast
22°F
-6°C
| Humidity | 92% |
| Wind Speed | E 5 mph |
| Barometer | 29.95 in (1015.6 mb) |
| Dewpoint | 20°F (-7°C) |
| Visibility | 10.00 mi |
| Wind Chill | 15°F (-9°C) |
| Last update | 2 Jan 4:52 am CST |
Extended Forecast for
Jefferson SD
Today
High: 28 °F
Cloudy then
Chance
Snow/SleetTonight
Low: 22 °F
Chance Snow
then Mostly
CloudySaturday

High: 36 °F
Mostly Sunny
Saturday Night

Low: 23 °F
Partly Cloudy
Sunday

High: 46 °F
Decreasing
CloudsSunday Night

Low: 30 °F
Partly Cloudy
Monday

High: 50 °F
Partly Sunny
Monday Night

Low: 30 °F
Partly Cloudy
Tuesday

High: 49 °F
Mostly Sunny
Detailed Forecast
Today
A slight chance of sleet before 3pm, then a slight chance of snow and sleet between 3pm and 4pm, then a chance of snow after 4pm. Cloudy, with a high near 28. East wind around 5 mph. Chance of precipitation is 40%. Little or no snow and sleet accumulation expected.
Tonight
A chance of snow before 11pm, then a chance of flurries between 11pm and midnight. Cloudy, with a low around 22. East wind around 5 mph becoming calm in the evening. Chance of precipitation is 40%. Little or no snow accumulation expected.
Saturday
Mostly sunny, with a high near 36. Calm wind becoming southwest around 5 mph.
Saturday Night
Partly cloudy, with a low around 23. Light and variable wind becoming southeast 5 to 10 mph after midnight.
Sunday
Mostly cloudy, then gradually becoming sunny, with a high near 46. South wind 10 to 15 mph, with gusts as high as 25 mph.
Sunday Night
Partly cloudy, with a low around 30. South wind 5 to 10 mph becoming west northwest after midnight.
Monday
Partly sunny, with a high near 50.
Monday Night
Partly cloudy, with a low around 30.
Tuesday
Mostly sunny, with a high near 49.
Tuesday Night
Mostly clear, with a low around 29.
Wednesday
Sunny, with a high near 53.
Wednesday Night
Partly cloudy, with a low around 31.
Thursday
A 20 percent chance of rain. Partly sunny, with a high near 47.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
Jefferson SD
42.61°N 96.56°W (Elev. 1125 ft)
42.61°N 96.56°W (Elev. 1125 ft)
4:44 am CST Jan 2, 2026
5am CST Jan 2, 2026-6pm CST Jan 8, 2026



