Flood Warning FLOOD WARNING - Juneau County
National Weather Service Forecast for: Sun Prairie, WI
Issued by: National Weather Service Milwaukee/Sullivan/Dousman, WI
Updated: 03/25/2026 5:32pm

Sun Prairie WI
 
  Thursday

Thursday: Partly Sunny then Rain Showers
Partly Sunny then Rain Showers
Friday

Friday: Mostly Sunny
Mostly Sunny
Saturday

Saturday: Mostly Sunny
Mostly Sunny
Sunday

Sunday: Partly Sunny
Partly Sunny
Monday

Monday: Mostly Sunny
Mostly Sunny
Tuesday

Tuesday: Chance Light Rain
Chance Light Rain
Wednesday

Wednesday: Chance Light Rain
Chance Light Rain
  Hi 60 °F Hi 43 °F Hi 51 °F Hi 61 °F Hi 66 °F Hi 63 °F Hi 63 °F
 
Tonight

Tonight: Partly Cloudy
Partly Cloudy
Thursday
Night
Thursday Night: Slight Chance Light Rain then Mostly Cloudy
Slight Chance Light Rain then Mostly Cloudy
Friday
Night
Friday Night: Mostly Clear
Mostly Clear
Saturday
Night
Saturday Night: Partly Cloudy
Partly Cloudy
Sunday
Night
Sunday Night: Partly Cloudy
Partly Cloudy
Monday
Night
Monday Night: Chance Light Rain
Chance Light Rain
Tuesday
Night
Tuesday Night: Chance Light Rain
Chance Light Rain
 
Lo 46 °F Lo 24 °F Lo 23 °F Lo 35 °F Lo 44 °F Lo 42 °F Lo 48 °F  

 

Tonight
 
Partly cloudy, with a low around 46. Southwest wind 5 to 10 mph.
Thursday
 
Rain showers after noon. Partly sunny. High near 60, with temperatures falling to around 52 in the afternoon. Northeast wind 5 to 15 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch possible.
Thursday Night
 
A chance of rain showers before 7pm, then a slight chance of rain between 7pm and 10pm. Mostly cloudy, with a low around 24. Northeast wind 10 to 15 mph, with gusts as high as 30 mph. Chance of precipitation is 30%. New rainfall amounts between a tenth and quarter of an inch possible.
Friday
 
Mostly sunny, with a high near 43. North wind 5 to 10 mph.
Friday Night
 
Mostly clear, with a low around 23. Northwest wind 5 to 10 mph.
Saturday
 
Mostly sunny, with a high near 51. West wind 5 to 10 mph.
Saturday Night
 
Partly cloudy, with a low around 35. Southwest wind around 10 mph.
Sunday
 
Partly sunny, with a high near 61. South wind 10 to 15 mph.
Sunday Night
 
Partly cloudy, with a low around 44.
Monday
 
Mostly sunny, with a high near 66.
Monday Night
 
A chance of rain and a slight chance of thunderstorms after 7pm. Mostly cloudy, with a low around 42. Chance of precipitation is 50%.
Tuesday
 
A chance of rain and a slight chance of thunderstorms. Mostly cloudy, with a high near 63. Chance of precipitation is 50%.
Tuesday Night
 
A chance of rain before 7pm, then a chance of rain and a slight chance of thunderstorms. Mostly cloudy, with a low around 48. Chance of precipitation is 50%.
Wednesday
 
A chance of rain and a slight chance of thunderstorms. Mostly cloudy, with a high near 63. Chance of precipitation is 50%.

 

Forecast from NOAA-NWS for Sun Prairie, WI.