National Weather Service Forecast for: Flandreau SD
Issued by: National Weather Service Sioux Falls, SD
Updated: 2:03 am CST Dec 5, 2025
 
Overnight

Overnight: A 20 percent chance of snow after 4am. Cloudy, with a steady temperature around 22. South southwest wind around 5 mph.
Slight Chance
Snow
 Friday

Friday: A 30 percent chance of snow, mainly before 8am. Cloudy, with a high near 33. South southwest wind 5 to 15 mph becoming northwest in the afternoon. Winds could gust as high as 20 mph.
Chance Snow

 Friday
Night
Friday Night: Mostly cloudy, with a low around 11. North northwest wind 5 to 10 mph becoming light after midnight.
Mostly Cloudy

 Saturday

Saturday: Snow, mainly after noon. High near 20. East wind 5 to 10 mph increasing to 10 to 15 mph in the afternoon. Winds could gust as high as 25 mph. Chance of precipitation is 80%. New snow accumulation of around 2 inches.
Chance Snow
then Snow
 Saturday
Night
Saturday Night: A 50 percent chance of snow before midnight. Mostly cloudy, with a low around -3. North northeast wind 5 to 15 mph, with gusts as high as 20 mph. New snow accumulation of less than one inch possible.
Chance Snow
then Mostly
Cloudy
 Sunday

Sunday: Partly sunny, with a high near 8. North northeast wind around 5 mph becoming east in the afternoon.
Partly Sunny

 Sunday
Night
Sunday Night: Mostly cloudy, with a low around -4.
Mostly Cloudy

 Monday

Monday: Mostly cloudy, with a high near 28.
Mostly Cloudy

 Monday
Night
Monday Night: Mostly cloudy, with a low around 14.
Mostly Cloudy
Lo 22 °F Hi 33 °F Lo 11 °F Hi 20 °F Lo -3 °F Hi 8 °F Lo -4 °F Hi 28 °F Lo 14 °F

Hazardous Weather Outlook
 

Overnight
 
 A 20 percent chance of snow after 4am. Cloudy, with a steady temperature around 22. South southwest wind around 5 mph.
Friday
 
 A 30 percent chance of snow, mainly before 8am. Cloudy, with a high near 33. South southwest wind 5 to 15 mph becoming northwest in the afternoon. Winds could gust as high as 20 mph.
Friday Night
 
 Mostly cloudy, with a low around 11. North northwest wind 5 to 10 mph becoming light after midnight.
Saturday
 
 Snow, mainly after noon. High near 20. East wind 5 to 10 mph increasing to 10 to 15 mph in the afternoon. Winds could gust as high as 25 mph. Chance of precipitation is 80%. New snow accumulation of around 2 inches.
Saturday Night
 
 A 50 percent chance of snow before midnight. Mostly cloudy, with a low around -3. North northeast wind 5 to 15 mph, with gusts as high as 20 mph. New snow accumulation of less than one inch possible.
Sunday
 
 Partly sunny, with a high near 8. North northeast wind around 5 mph becoming east in the afternoon.
Sunday Night
 
 Mostly cloudy, with a low around -4.
Monday
 
 Mostly cloudy, with a high near 28.
Monday Night
 
 Mostly cloudy, with a low around 14.
Tuesday
 
 A 30 percent chance of snow after noon. Mostly cloudy, with a high near 32.
Tuesday Night
 
 A 40 percent chance of snow. Cloudy, with a low around 13.
Wednesday
 
 A 20 percent chance of snow. Mostly cloudy, with a high near 23.
Wednesday Night
 
 A 20 percent chance of snow. Mostly cloudy, with a low around 3.
Thursday
 
 A 20 percent chance of snow. Mostly cloudy, with a high near 20.

 

Forecast from NOAA-NWS for Flandreau SD.