National Weather Service Forecast for: Flandreau SD
Issued by: National Weather Service Sioux Falls, SD
Updated: 6:23 pm CST Feb 2, 2026
 
Tonight

Tonight: A chance of snow and freezing rain before 9pm, then a chance of snow between 9pm and 2am, then a chance of flurries after 2am.  Cloudy, with a low around 10. Northeast wind around 5 mph.  Chance of precipitation is 30%.
Chance Wintry
Mix then
Slight Chance
Snow
Tuesday

Tuesday: A chance of flurries before 9am.  Partly sunny, with a high near 24. Northeast wind around 5 mph becoming calm.
Chance
Flurries

Tuesday
Night
Tuesday Night: A 20 percent chance of snow after midnight.  Mostly cloudy, with a low around 17. Calm wind becoming northwest around 5 mph after midnight.
Mostly Cloudy
then Slight
Chance Snow
Wednesday

Wednesday: Mostly cloudy, with a high near 29. North northwest wind 5 to 15 mph, with gusts as high as 20 mph.
Mostly Cloudy

Wednesday
Night
Wednesday Night: Mostly cloudy, with a low around 20. West northwest wind 5 to 10 mph becoming south southwest after midnight.
Mostly Cloudy

Thursday

Thursday: Mostly sunny, with a high near 45. West northwest wind 10 to 15 mph, with gusts as high as 25 mph.
Mostly Sunny

Thursday
Night
Thursday Night: Mostly clear, with a low around 25.
Mostly Clear

Friday

Friday: Mostly sunny, with a high near 33.
Mostly Sunny

Friday
Night
Friday Night: Partly cloudy, with a low around 15.
Partly Cloudy

Lo 10 °F Hi 24 °F Lo 17 °F Hi 29 °F Lo 20 °F Hi 45 °F Lo 25 °F Hi 33 °F Lo 15 °F

Hazardous Weather Outlook
 

Tonight
 
A chance of snow and freezing rain before 9pm, then a chance of snow between 9pm and 2am, then a chance of flurries after 2am. Cloudy, with a low around 10. Northeast wind around 5 mph. Chance of precipitation is 30%.
Tuesday
 
A chance of flurries before 9am. Partly sunny, with a high near 24. Northeast wind around 5 mph becoming calm.
Tuesday Night
 
A 20 percent chance of snow after midnight. Mostly cloudy, with a low around 17. Calm wind becoming northwest around 5 mph after midnight.
Wednesday
 
Mostly cloudy, with a high near 29. North northwest wind 5 to 15 mph, with gusts as high as 20 mph.
Wednesday Night
 
Mostly cloudy, with a low around 20. West northwest wind 5 to 10 mph becoming south southwest after midnight.
Thursday
 
Mostly sunny, with a high near 45. West northwest wind 10 to 15 mph, with gusts as high as 25 mph.
Thursday Night
 
Mostly clear, with a low around 25.
Friday
 
Mostly sunny, with a high near 33.
Friday Night
 
Partly cloudy, with a low around 15.
Saturday
 
Mostly sunny, with a high near 34.
Saturday Night
 
Partly cloudy, with a low around 19.
Sunday
 
Mostly sunny, with a high near 40.
Sunday Night
 
Partly cloudy, with a low around 24.
Monday
 
Mostly sunny, with a high near 45.

 

Forecast from NOAA-NWS for Flandreau SD.