| National Weather Service Forecast for:
Sun Prairie, WI Issued by: National Weather Service Milwaukee/Sullivan/Dousman, WI |
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| Updated: 03/25/2026 5:32pm | ||||||||||||||||||||||||||||||||||||||||
| Sun Prairie WI | ||||||||||||||||||||||||||||||||||||||||
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| 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.