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.

Fog/Mist

36°F

2°C

Humidity 100%
Wind Speed SE 7 mph
Barometer 30.04 in (1018.3 mb)
Dewpoint 36°F (2°C)
Visibility 1.75 mi
Wind Chill30°F (-1°C)
Last update 3 Mar 8:52 am CST
Extended Forecast for

Jefferson SD

  • Today

    Today: Areas of fog before 11am. Otherwise, mostly cloudy, with a high near 50. South wind around 5 mph becoming northeast in the afternoon.

    High: 50 °F

    Areas Fog
    then Mostly
    Cloudy

  • Tonight

    Tonight: A slight chance of drizzle after midnight. Mostly cloudy, with a low around 35. East northeast wind around 5 mph becoming calm in the evening.

    Low: 35 °F

    Mostly Cloudy
    then Slight
    Chance
    Drizzle

  • Wednesday

    Wednesday: A chance of sprinkles and flurries before 7am, then a chance of sprinkles between 7am and noon. Partly sunny, with a high near 57. Calm wind becoming south southeast around 5 mph in the morning.

    High: 57 °F

    Chance
    Sprinkles/Flurries
    then Mostly
    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 33. South southeast wind around 5 mph.

    Low: 33 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 67. South southeast wind 5 to 15 mph, with gusts as high as 20 mph.

    High: 67 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: A chance of rain, then rain and possibly a thunderstorm after midnight. Low around 48. South southeast wind 10 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 90%.

    Low: 48 °F

    Chance Rain
    then Rain

  • Friday

    Friday: Rain and possibly a thunderstorm before noon, then a chance of rain. High near 66. Chance of precipitation is 80%.

    High: 66 °F

    Rain then
    Chance Rain

  • Friday Night

    Friday Night: A chance of rain before midnight, then a slight chance of rain and snow. Some thunder is also possible. Mostly cloudy, with a low around 30. Chance of precipitation is 50%.

    Low: 30 °F

    Chance Rain
    then Slight
    Chance
    Rain/Snow

  • Saturday

    Saturday: Mostly sunny, with a high near 53.

    High: 53 °F

    Mostly Sunny

Detailed Forecast

Today
Areas of fog before 11am. Otherwise, mostly cloudy, with a high near 50. South wind around 5 mph becoming northeast in the afternoon.
Tonight
A slight chance of drizzle after midnight. Mostly cloudy, with a low around 35. East northeast wind around 5 mph becoming calm in the evening.
Wednesday
A chance of sprinkles and flurries before 7am, then a chance of sprinkles between 7am and noon. Partly sunny, with a high near 57. Calm wind becoming south southeast around 5 mph in the morning.
Wednesday Night
Mostly clear, with a low around 33. South southeast wind around 5 mph.
Thursday
Mostly sunny, with a high near 67. South southeast wind 5 to 15 mph, with gusts as high as 20 mph.
Thursday Night
A chance of rain, then rain and possibly a thunderstorm after midnight. Low around 48. South southeast wind 10 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 90%.
Friday
Rain and possibly a thunderstorm before noon, then a chance of rain. High near 66. Chance of precipitation is 80%.
Friday Night
A chance of rain before midnight, then a slight chance of rain and snow. Some thunder is also possible. Mostly cloudy, with a low around 30. Chance of precipitation is 50%.
Saturday
Mostly sunny, with a high near 53.
Saturday Night
Mostly clear, with a low around 35.
Sunday
Mostly sunny, with a high near 67.
Sunday Night
Partly cloudy, with a low around 35.
Monday
Sunny, with a high near 67.
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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:
8:34 am CST Mar 3, 2026
Forecast Valid:
9am CST Mar 3, 2026-6pm CDT Mar 9, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation