National Weather Service Forecast for: South Sioux City NE
Issued by: National Weather Service Sioux Falls, SD
Updated: 7:13 pm CST Dec 17, 2025
 
Tonight

Tonight: Rain, mainly before 1am. Low around 33. Breezy, with a south southeast wind 15 to 20 mph becoming west northwest after midnight. Winds could gust as high as 30 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.
Rain and
Breezy

 Thursday

Thursday: A chance of flurries with a slight chance of snow before 11am, then a chance of flurries between 11am and 5pm. Partly sunny, with a temperature falling to around 18 by 3pm. Windy, with a northwest wind 20 to 30 mph, with gusts as high as 50 mph. Chance of precipitation is 20%.
Windy. Slight
Chance Snow
then Chance
Flurries
 Thursday
Night
Thursday Night: Mostly clear, with a low around 11. Blustery, with a northwest wind 15 to 20 mph becoming northwest 5 to 10 mph after midnight. Winds could gust as high as 35 mph.
Mostly Clear
and Blustery
then Partly
Cloudy
 Friday

Friday: Mostly sunny, with a high near 38. South southeast wind 5 to 15 mph, with gusts as high as 25 mph.
Mostly Sunny

 Friday
Night
Friday Night: Mostly cloudy, with a low around 28. South southeast wind 5 to 10 mph becoming northwest after midnight. Winds could gust as high as 20 mph.
Mostly Cloudy

 Saturday

Saturday: Mostly sunny, with a high near 38. North northwest wind 5 to 10 mph, with gusts as high as 20 mph.
Mostly Sunny

 Saturday
Night
Saturday Night: Mostly clear, with a low around 19.
Mostly Clear

 Sunday

Sunday: Mostly sunny, with a high near 40.
Mostly Sunny

 Sunday
Night
Sunday Night: Mostly cloudy, with a low around 29.
Mostly Cloudy
Lo 33 °F Hi 34 °F⇓ Lo 11 °F Hi 38 °F Lo 28 °F Hi 38 °F Lo 19 °F Hi 40 °F Lo 29 °F

Hazardous Weather Outlook
High Wind Warning
 

Tonight
 
 Rain, mainly before 1am. Low around 33. Breezy, with a south southeast wind 15 to 20 mph becoming west northwest after midnight. Winds could gust as high as 30 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.
Thursday
 
 A chance of flurries with a slight chance of snow before 11am, then a chance of flurries between 11am and 5pm. Partly sunny, with a temperature falling to around 18 by 3pm. Windy, with a northwest wind 20 to 30 mph, with gusts as high as 50 mph. Chance of precipitation is 20%.
Thursday Night
 
 Mostly clear, with a low around 11. Blustery, with a northwest wind 15 to 20 mph becoming northwest 5 to 10 mph after midnight. Winds could gust as high as 35 mph.
Friday
 
 Mostly sunny, with a high near 38. South southeast wind 5 to 15 mph, with gusts as high as 25 mph.
Friday Night
 
 Mostly cloudy, with a low around 28. South southeast wind 5 to 10 mph becoming northwest after midnight. Winds could gust as high as 20 mph.
Saturday
 
 Mostly sunny, with a high near 38. North northwest wind 5 to 10 mph, with gusts as high as 20 mph.
Saturday Night
 
 Mostly clear, with a low around 19.
Sunday
 
 Mostly sunny, with a high near 40.
Sunday Night
 
 Mostly cloudy, with a low around 29.
Monday
 
 Mostly sunny, with a high near 47.
Monday Night
 
 Partly cloudy, with a low around 31.
Tuesday
 
 Partly sunny, with a high near 44.
Tuesday Night
 
 Mostly cloudy, with a low around 26.
Wednesday
 
 Partly sunny, with a high near 43.

 

Forecast from NOAA-NWS for South Sioux City NE.