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Hazardous Weather Conditions

Current conditions at

Sioux City, Sioux Gateway Airport (KSUX)

Lat: 42.4°NLon: 96.38°WElev: 1099ft.

Fair

58°F

14°C

Humidity 60%
Wind Speed NE 6 mph
Barometer 30.13 in (1020.6 mb)
Dewpoint 44°F (7°C)
Visibility 10.00 mi
Last update 14 Oct 4:52 pm CDT
Extended Forecast for

Jefferson SD

  • Tonight

    Tonight: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 4am. Cloudy, with a low around 45. Northeast wind around 5 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 45 °F

    Cloudy then
    Showers
    Likely

  • Thursday

    Thursday: Showers, mainly before 4pm. Patchy fog between 8am and 11am. High near 57. North wind 5 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.

    High: 57 °F

    Showers and
    Patchy Fog

  • Thursday Night

    Thursday Night: Mostly cloudy during the early evening, then becoming mostly clear, with a low around 40. Breezy, with a northwest wind 15 to 20 mph, with gusts as high as 35 mph.

    Low: 40 °F

    Mostly Clear
    and Breezy

  • Friday

    Friday: Cloudy through mid morning, then gradual clearing, with a high near 55. Breezy, with a north northwest wind 15 to 25 mph, with gusts as high as 35 mph.

    High: 55 °F

    Becoming
    Sunny and
    Breezy

  • Friday Night

    Friday Night: Widespread frost, mainly after 3am. Otherwise, clear, with a low around 32. North northwest wind around 5 mph becoming calm in the evening.

    Low: 32 °F

    Clear then
    Frost

  • Saturday

    Saturday: Widespread frost, mainly before 8am. Otherwise, sunny, with a high near 62. South wind 5 to 15 mph, with gusts as high as 25 mph.

    High: 62 °F

    Frost then
    Sunny

  • Saturday Night

    Saturday Night: Clear, with a low around 42.

    Low: 42 °F

    Clear

  • Sunday

    Sunday: Sunny, with a high near 68.

    High: 68 °F

    Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 45.

    Low: 45 °F

    Partly Cloudy

Detailed Forecast

Tonight
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 4am. Cloudy, with a low around 45. Northeast wind around 5 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Thursday
Showers, mainly before 4pm. Patchy fog between 8am and 11am. High near 57. North wind 5 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.
Thursday Night
Mostly cloudy during the early evening, then becoming mostly clear, with a low around 40. Breezy, with a northwest wind 15 to 20 mph, with gusts as high as 35 mph.
Friday
Cloudy through mid morning, then gradual clearing, with a high near 55. Breezy, with a north northwest wind 15 to 25 mph, with gusts as high as 35 mph.
Friday Night
Widespread frost, mainly after 3am. Otherwise, clear, with a low around 32. North northwest wind around 5 mph becoming calm in the evening.
Saturday
Widespread frost, mainly before 8am. Otherwise, sunny, with a high near 62. South wind 5 to 15 mph, with gusts as high as 25 mph.
Saturday Night
Clear, with a low around 42.
Sunday
Sunny, with a high near 68.
Sunday Night
Partly cloudy, with a low around 45.
Monday
Mostly sunny, with a high near 68.
Monday Night
Mostly clear, with a low around 47.
Tuesday
Sunny, with a high near 73.
Tuesday Night
Mostly clear, with a low around 53.
Wednesday
Mostly sunny, with a high near 74.
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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:
5:23 pm CDT Oct 14, 2026
Forecast Valid:
5pm CDT Oct 14, 2026-6pm CDT Oct 21, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation