| National Weather Service Forecast for:
Sun Prairie, WI Issued by: National Weather Service Milwaukee/Sullivan/Dousman, WI |
||||||||||||||||||||||||||||||||||||||||
| Updated: 09/09/2026 8:41pm | ||||||||||||||||||||||||||||||||||||||||
| Sun Prairie WI | ||||||||||||||||||||||||||||||||||||||||
|
||||||||||||||||||||||||||||||||||||||||
| Tonight |
Partly cloudy, with a low around 57. Northwest wind around 5 mph. |
| Thursday |
Mostly sunny, with a high near 77. Northwest wind 0 to 5 mph. |
| Thursday Night |
Clear, with a low around 55. East wind 0 to 5 mph. |
| Friday |
Sunny, with a high near 78. South wind 5 to 10 mph. |
| Friday Night |
A slight chance of rain showers after 1am. Partly cloudy, with a low around 61. South wind 5 to 10 mph. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible. |
| Saturday |
A slight chance of rain showers before 7am, then a slight chance of showers and thunderstorms between 7am and 1pm. Partly sunny, with a high near 79. Southwest wind 5 to 10 mph. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible. |
| Saturday Night |
Partly cloudy, with a low around 54. Northwest wind 0 to 5 mph. |
| Sunday |
A slight chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 75. Northeast wind 0 to 5 mph. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible. |
| Sunday Night |
A slight chance of showers and thunderstorms before 7pm, then a chance of showers and thunderstorms. Mostly cloudy, with a low around 59. Chance of precipitation is 50%. |
| Monday |
Showers and thunderstorms likely. Partly sunny, with a high near 81. Chance of precipitation is 70%. |
| Monday Night |
Showers and thunderstorms likely. Mostly cloudy, with a low around 59. Chance of precipitation is 70%. |
| Tuesday |
Showers and thunderstorms likely. Mostly cloudy, with a high near 74. Chance of precipitation is 70%. |
| Tuesday Night |
A slight chance of rain showers. Mostly cloudy, with a low around 55. Chance of precipitation is 20%. |
| Wednesday |
A chance of rain showers. Partly sunny, with a high near 71. Chance of precipitation is 30%. |
Forecast from NOAA-NWS for Sun Prairie, WI.