National Weather Service Forecast for: Sioux City IA
Issued by: National Weather Service Sioux Falls, SD
Updated: 5:45 am CDT Apr 16, 2025
 
Today

Today: Sunny, with a high near 77. South southeast wind 10 to 15 mph, with gusts as high as 25 mph.
Sunny

 Tonight

Tonight: A 20 percent chance of showers and thunderstorms after 4am. Partly cloudy, with a low around 54. Southeast wind 10 to 15 mph, with gusts as high as 20 mph.
Partly Cloudy
then Slight
Chance
T-storms
 Thursday

Thursday: A chance of showers and thunderstorms before 1pm, then a slight chance of showers between 1pm and 4pm, then a chance of showers and thunderstorms after 4pm. Mostly cloudy, with a high near 79. South southeast wind 10 to 15 mph becoming southwest in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 40%.
Chance
Showers then
Chance
T-storms
 Thursday
Night
Thursday Night: A chance of showers and thunderstorms before 1am, then showers likely and possibly a thunderstorm between 1am and 4am, then showers likely after 4am. Mostly cloudy, with a low around 42. North northwest wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 60%.
Chance
T-storms then
Showers
Likely
 Friday

Friday: A 30 percent chance of showers before 1pm. Mostly cloudy, with a high near 55. North northwest wind around 15 mph, with gusts as high as 30 mph.
Chance
Showers

 Friday
Night
Friday Night: Mostly cloudy, then gradually becoming mostly clear, with a low around 34. North northwest wind 5 to 15 mph, with gusts as high as 20 mph.
Decreasing
Clouds

 Saturday

Saturday: Mostly sunny, with a high near 60.
Mostly Sunny

 Saturday
Night
Saturday Night: A 20 percent chance of showers after 1am. Partly cloudy, with a low around 37.
Partly Cloudy
then Slight
Chance
Showers
 Sunday

Sunday: A 40 percent chance of showers. Partly sunny, with a high near 59.
Chance
Showers
Hi 77 °F Lo 54 °F Hi 79 °F Lo 42 °F Hi 55 °F Lo 34 °F Hi 60 °F Lo 37 °F Hi 59 °F

Hazardous Weather Outlook
 

Today
 
 Sunny, with a high near 77. South southeast wind 10 to 15 mph, with gusts as high as 25 mph.
Tonight
 
 A 20 percent chance of showers and thunderstorms after 4am. Partly cloudy, with a low around 54. Southeast wind 10 to 15 mph, with gusts as high as 20 mph.
Thursday
 
 A chance of showers and thunderstorms before 1pm, then a slight chance of showers between 1pm and 4pm, then a chance of showers and thunderstorms after 4pm. Mostly cloudy, with a high near 79. South southeast wind 10 to 15 mph becoming southwest in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 40%.
Thursday Night
 
 A chance of showers and thunderstorms before 1am, then showers likely and possibly a thunderstorm between 1am and 4am, then showers likely after 4am. Mostly cloudy, with a low around 42. North northwest wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 60%.
Friday
 
 A 30 percent chance of showers before 1pm. Mostly cloudy, with a high near 55. North northwest wind around 15 mph, with gusts as high as 30 mph.
Friday Night
 
 Mostly cloudy, then gradually becoming mostly clear, with a low around 34. North northwest wind 5 to 15 mph, with gusts as high as 20 mph.
Saturday
 
 Mostly sunny, with a high near 60.
Saturday Night
 
 A 20 percent chance of showers after 1am. Partly cloudy, with a low around 37.
Sunday
 
 A 40 percent chance of showers. Partly sunny, with a high near 59.
Sunday Night
 
 A 40 percent chance of showers, mainly before 1am. Mostly cloudy, with a low around 37.
Monday
 
 A 20 percent chance of showers. Mostly sunny, with a high near 67.
Monday Night
 
 A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 43.
Tuesday
 
 A 40 percent chance of showers. Mostly sunny, with a high near 69.

 

Forecast from NOAA-NWS for Sioux City IA.