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.

Fair

88°F

31°C

Humidity 55%
Wind Speed S 10 G 17 mph
Barometer 29.95 in (1013.2 mb)
Dewpoint 70°F (21°C)
Visibility 10.00 mi
Heat Index93°F (34°C)
Last update 14 Jun 1:52 pm CDT
Extended Forecast for

Jefferson SD

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 91. South southeast wind around 5 mph.

    High: 91 °F

    Mostly Sunny

  • Tonight

    Tonight: A 40 percent chance of showers and thunderstorms, mainly after 1am. Mostly cloudy, with a low around 67. Southeast wind 5 to 10 mph.

    Low: 67 °F

    Chance
    T-storms

  • Sunday

    Sunday: A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 88. South southeast wind 5 to 10 mph.

    High: 88 °F

    Chance
    T-storms

  • Sunday Night

    Sunday Night: A 40 percent chance of showers and thunderstorms. Partly cloudy, with a low around 65. South southeast wind 5 to 10 mph.

    Low: 65 °F

    Chance
    T-storms

  • Monday

    Monday: A 40 percent chance of showers and thunderstorms, mainly after 1pm. Partly sunny, with a high near 90. South wind 5 to 15 mph, with gusts as high as 20 mph.

    High: 90 °F

    Chance
    T-storms

  • Monday Night

    Monday Night: Showers likely and possibly a thunderstorm. Increasing clouds, with a low around 66. South southeast wind 5 to 10 mph. Chance of precipitation is 60%.

    Low: 66 °F

    Showers
    Likely

  • Tuesday

    Tuesday: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 82. Chance of precipitation is 60%.

    High: 82 °F

    Chance
    T-storms then
    Showers
    Likely

  • Tuesday Night

    Tuesday Night: Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 62. Chance of precipitation is 70%.

    Low: 62 °F

    Showers
    Likely

  • Wednesday

    Wednesday: A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 79.

    High: 79 °F

    Chance
    T-storms

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 91. South southeast wind around 5 mph.
Tonight
A 40 percent chance of showers and thunderstorms, mainly after 1am. Mostly cloudy, with a low around 67. Southeast wind 5 to 10 mph.
Sunday
A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 88. South southeast wind 5 to 10 mph.
Sunday Night
A 40 percent chance of showers and thunderstorms. Partly cloudy, with a low around 65. South southeast wind 5 to 10 mph.
Monday
A 40 percent chance of showers and thunderstorms, mainly after 1pm. Partly sunny, with a high near 90. South wind 5 to 15 mph, with gusts as high as 20 mph.
Monday Night
Showers likely and possibly a thunderstorm. Increasing clouds, with a low around 66. South southeast wind 5 to 10 mph. Chance of precipitation is 60%.
Tuesday
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 82. Chance of precipitation is 60%.
Tuesday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 62. Chance of precipitation is 70%.
Wednesday
A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 79.
Wednesday Night
Mostly clear, with a low around 59.
Juneteenth
Sunny, with a high near 86.
Thursday Night
A 30 percent chance of showers and thunderstorms. Mostly clear, with a low around 64.
Friday
Mostly sunny, with a high near 89.
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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:
12:07 pm CDT Jun 14, 2025
Forecast Valid:
1pm CDT Jun 14, 2025-6pm CDT Jun 20, 2025
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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