National Weather Service Forecast for: Sioux Falls SD
Issued by: National Weather Service Sioux Falls, SD
Updated: 11:33 am CDT Mar 19, 2026
 
This
Afternoon
This Afternoon: Sunny, with a high near 72. Southwest wind 5 to 10 mph.
Sunny
Tonight

Tonight: Partly cloudy, with a low around 42. Southwest wind around 5 mph.
Partly Cloudy
Friday

Friday: Mostly sunny, with a high near 71. West northwest wind 5 to 10 mph.
Mostly Sunny
Friday
Night
Friday Night: Partly cloudy, with a low around 43. West northwest wind around 5 mph becoming south southwest after midnight.
Partly Cloudy
Saturday

Saturday: Mostly sunny, with a high near 82. Southwest wind 5 to 10 mph.
Mostly Sunny
Saturday
Night
Saturday Night: Partly cloudy, with a low around 41. South southeast wind 10 to 15 mph becoming north after midnight. Winds could gust as high as 30 mph.
Partly Cloudy
Sunday

Sunday: Mostly sunny, with a high near 54.
Mostly Sunny
Sunday
Night
Sunday Night: Mostly clear, with a low around 28.
Mostly Clear
Monday

Monday: Partly sunny, with a high near 54.
Partly Sunny
Hi 72 °F Lo 42 °F Hi 71 °F Lo 43 °F Hi 82 °F Lo 41 °F Hi 54 °F Lo 28 °F Hi 54 °F

 

This Afternoon
 
Sunny, with a high near 72. Southwest wind 5 to 10 mph.
Tonight
 
Partly cloudy, with a low around 42. Southwest wind around 5 mph.
Friday
 
Mostly sunny, with a high near 71. West northwest wind 5 to 10 mph.
Friday Night
 
Partly cloudy, with a low around 43. West northwest wind around 5 mph becoming south southwest after midnight.
Saturday
 
Mostly sunny, with a high near 82. Southwest wind 5 to 10 mph.
Saturday Night
 
Partly cloudy, with a low around 41. South southeast wind 10 to 15 mph becoming north after midnight. Winds could gust as high as 30 mph.
Sunday
 
Mostly sunny, with a high near 54.
Sunday Night
 
Mostly clear, with a low around 28.
Monday
 
Partly sunny, with a high near 54.
Monday Night
 
Mostly cloudy, with a low around 38.
Tuesday
 
Mostly cloudy, with a high near 60.
Tuesday Night
 
Mostly cloudy, with a low around 38.
Wednesday
 
Partly sunny, with a high near 68.

 

Forecast from NOAA-NWS for Sioux Falls SD.