| National Weather Service Forecast for:
Sun Prairie, WI Issued by: National Weather Service Milwaukee/Sullivan/Dousman, WI |
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| Updated: 11/17/2025 3:21am | ||||||||||||||||||||||||||||||||||||||||
| Sun Prairie WI | ||||||||||||||||||||||||||||||||||||||||
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| Overnight |
Clear, with a low around 23. Northwest wind around 5 mph. |
| Monday |
Mostly sunny, with a high near 45. North wind 0 to 5 mph. |
| Monday Night |
A chance of rain between 8pm and 10pm, then a chance of rain and snow between 10pm and midnight, then rain and snow likely between midnight and 2am, then rain and snow. Cloudy, with a low around 31. East wind 5 to 10 mph. Chance of precipitation is 80%. New snow accumulation of less than half an inch possible. |
| Tuesday |
Snow before 8am, then rain and snow between 8am and 9am, then rain and snow. Cloudy, with a high near 40. East wind around 10 mph. Chance of precipitation is 80%. New snow accumulation of less than half an inch possible. |
| Tuesday Night |
Mostly cloudy, with a low around 29. Northeast wind 0 to 5 mph. |
| Wednesday |
Mostly cloudy, with a high near 44. Southeast wind 0 to 5 mph. |
| Wednesday Night |
Mostly cloudy, with a low around 34. South wind 0 to 5 mph. |
| Thursday |
A chance of rain. Mostly cloudy, with a high near 51. South wind 5 to 10 mph. Chance of precipitation is 50%. New rainfall amounts less than a tenth of an inch possible. |
| Thursday Night |
A chance of rain. Mostly cloudy, with a low around 33. Chance of precipitation is 40%. |
| Friday |
A chance of rain. Partly sunny. High near 45, with temperatures falling to around 39 in the afternoon. Chance of precipitation is 30%. |
| Friday Night |
A chance of rain. Partly cloudy, with a low around 29. Chance of precipitation is 30%. |
| Saturday |
A slight chance of rain before noon. Mostly sunny, with a high near 47. Chance of precipitation is 20%. |
| Saturday Night |
Mostly cloudy, with a low around 32. |
| Sunday |
Mostly sunny, with a high near 49. |
Forecast from NOAA-NWS for Sun Prairie, WI.