National Weather Service Forecast for: South Sioux City NE
Issued by: National Weather Service Sioux Falls, SD
Updated: 3:03 pm CDT Jul 28, 2026
 
Tonight

Tonight: Patchy smoke. Mostly clear, with a low around 70. East southeast wind around 5 mph.
Patchy Smoke

 Wednesday

Wednesday: Patchy smoke. Sunny, with a high near 92. South southeast wind 5 to 10 mph.
Patchy Smoke

 Wednesday
Night
Wednesday Night: A 20 percent chance of showers and thunderstorms after 1am. Patchy smoke. Mostly clear, with a low around 71. South southeast wind 5 to 10 mph.
Patchy Smoke
then Slight
Chance
T-storms
 Thursday

Thursday: Showers likely and possibly a thunderstorm. Patchy smoke before 8am. Mostly cloudy, with a high near 85. South southeast wind 5 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 70%.
Showers
Likely

 Thursday
Night
Thursday Night: Showers and possibly a thunderstorm. Low around 67. Southeast wind 5 to 10 mph becoming west southwest after midnight. Chance of precipitation is 90%.
Showers

 Friday

Friday: A chance of showers and thunderstorms before 7am, then a chance of showers between 7am and 1pm. Cloudy, then gradually becoming mostly sunny, with a high near 83. North northwest wind 10 to 15 mph, with gusts as high as 30 mph. Chance of precipitation is 30%.
Chance
Showers

 Friday
Night
Friday Night: Mostly clear, with a low around 62.
Mostly Clear

 Saturday

Saturday: Sunny, with a high near 82.
Sunny

 Saturday
Night
Saturday Night: Clear, with a low around 62.
Clear
Lo 70 °F Hi 92 °F Lo 71 °F Hi 85 °F Lo 67 °F Hi 83 °F Lo 62 °F Hi 82 °F Lo 62 °F

Hazardous Weather Outlook
 

Tonight
 
 Patchy smoke. Mostly clear, with a low around 70. East southeast wind around 5 mph.
Wednesday
 
 Patchy smoke. Sunny, with a high near 92. South southeast wind 5 to 10 mph.
Wednesday Night
 
 A 20 percent chance of showers and thunderstorms after 1am. Patchy smoke. Mostly clear, with a low around 71. South southeast wind 5 to 10 mph.
Thursday
 
 Showers likely and possibly a thunderstorm. Patchy smoke before 8am. Mostly cloudy, with a high near 85. South southeast wind 5 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 70%.
Thursday Night
 
 Showers and possibly a thunderstorm. Low around 67. Southeast wind 5 to 10 mph becoming west southwest after midnight. Chance of precipitation is 90%.
Friday
 
 A chance of showers and thunderstorms before 7am, then a chance of showers between 7am and 1pm. Cloudy, then gradually becoming mostly sunny, with a high near 83. North northwest wind 10 to 15 mph, with gusts as high as 30 mph. Chance of precipitation is 30%.
Friday Night
 
 Mostly clear, with a low around 62.
Saturday
 
 Sunny, with a high near 82.
Saturday Night
 
 Clear, with a low around 62.
Sunday
 
 Sunny, with a high near 84.
Sunday Night
 
 Mostly clear, with a low around 64.
Monday
 
 Sunny, with a high near 85.
Monday Night
 
 Mostly clear, with a low around 66.
Tuesday
 
 Partly sunny, with a high near 83.

 

Forecast from NOAA-NWS for South Sioux City NE.