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National Weather Service Forecast for: Sun Prairie, WI
Issued by: National Weather Service Milwaukee/Sullivan/Dousman, WI
Updated: 11/26/2025 2:11am

Sun Prairie WI
 
  Wednesday

Wednesday: Light Snow And Patchy Blowing Snow
Light Snow And Patchy Blowing Snow
Thanksgiving
Day
Thanksgiving Day: Mostly Cloudy
Mostly Cloudy
Friday

Friday: Mostly Sunny
Mostly Sunny
Saturday

Saturday: Snow
Snow
Sunday

Sunday: Slight Chance Light Snow
Slight Chance Light Snow
Monday

Monday: Slight Chance Light Snow
Slight Chance Light Snow
Tuesday

Tuesday: Partly Sunny
Partly Sunny
  Hi 33 °F Hi 29 °F Hi 29 °F Hi 29 °F Hi 27 °F Hi 18 °F Hi 19 °F
 
Overnight

Overnight: Chance Rain And Snow
Chance Rain And Snow
Wednesday
Night
Wednesday Night: Mostly Cloudy
Mostly Cloudy
Thursday
Night
Thursday Night: Mostly Cloudy
Mostly Cloudy
Friday
Night
Friday Night: Light Snow Likely
Light Snow Likely
Saturday
Night
Saturday Night: Light Snow Likely
Light Snow Likely
Sunday
Night
Sunday Night: Slight Chance Light Snow
Slight Chance Light Snow
Monday
Night
Monday Night: Slight Chance Light Snow then Mostly Cloudy
Slight Chance Light Snow then Mostly Cloudy
 
Lo 31 °F Lo 22 °F Lo 18 °F Lo 19 °F Lo 18 °F Lo 4 °F Lo 3 °F  

Wind Advisory issued November 25 at 8:59PM CST until November 26 at 6:00PM CST
 

Overnight
 
A chance of rain and snow. Cloudy, with a low around 31. West wind 15 to 20 mph, with gusts as high as 40 mph. Chance of precipitation is 50%. New rainfall amounts less than a tenth of an inch possible.
Wednesday
 
Snow and patchy blowing snow before 5pm. Cloudy, with a high near 33. West wind 20 to 30 mph, with gusts as high as 50 mph. Chance of precipitation is 80%. New snow accumulation of less than one inch possible.
Wednesday Night
 
Mostly cloudy, with a low around 22. Northwest wind 20 to 25 mph, with gusts as high as 40 mph.
Thanksgiving Day
 
Mostly cloudy, with a high near 29. Northwest wind 15 to 20 mph, with gusts as high as 30 mph.
Thursday Night
 
Mostly cloudy, with a low around 18. Northwest wind 10 to 15 mph.
Friday
 
Mostly sunny, with a high near 29. Northwest wind 5 to 10 mph.
Friday Night
 
Snow likely. Mostly cloudy, with a low around 19. South wind 0 to 5 mph. Chance of precipitation is 70%. New snow accumulation of 1 to 2 inches possible.
Saturday
 
Snow. Cloudy, with a high near 29. Southeast wind 5 to 10 mph. Chance of precipitation is 90%. New snow accumulation of 3 to 5 inches possible.
Saturday Night
 
Snow likely. Mostly cloudy, with a low around 18. Chance of precipitation is 70%. New snow accumulation of 1 to 2 inches possible.
Sunday
 
A slight chance of snow. Mostly cloudy. High near 27, with temperatures falling to around 21 in the afternoon. Chance of precipitation is 20%.
Sunday Night
 
A slight chance of snow. Mostly cloudy, with a low around 4. Chance of precipitation is 20%.
Monday
 
A slight chance of snow. Partly sunny, with a high near 18. Chance of precipitation is 20%.
Monday Night
 
A slight chance of snow before midnight. Mostly cloudy, with a low around 3. Chance of precipitation is 20%.
Tuesday
 
Partly sunny, with a high near 19.

 

Forecast from NOAA-NWS for Sun Prairie, WI.