| National Weather Service Forecast for:
Sun Prairie, WI Issued by: National Weather Service Milwaukee/Sullivan/Dousman, WI |
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| Updated: 06/24/2026 1:22am | ||||||||||||||||||||||||||||||||||||||||
| Sun Prairie WI | ||||||||||||||||||||||||||||||||||||||||
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| Overnight |
Showers and thunderstorms before 4am, then a chance of showers and thunderstorms between 4am and 5am, then showers and thunderstorms likely. Mostly cloudy, with a low around 58. South wind around 5 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch possible. |
| Wednesday |
Showers and thunderstorms before 11am, then a chance of showers and thunderstorms. Mostly cloudy, with a high near 77. Southwest wind 5 to 10 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible. |
| Wednesday Night |
A chance of showers and thunderstorms before 10pm. Partly cloudy, with a low around 56. West wind 0 to 5 mph. Chance of precipitation is 50%. New rainfall amounts between a tenth and quarter of an inch possible. |
| Thursday |
Mostly sunny, with a high near 75. Northwest wind 5 to 10 mph. |
| Thursday Night |
Partly cloudy, with a low around 54. Northeast wind 0 to 5 mph. |
| Friday |
A slight chance of rain showers between 7am and 1pm. Mostly sunny, with a high near 76. East wind 5 to 10 mph. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible. |
| Friday Night |
Partly cloudy, with a low around 54. East wind 0 to 5 mph. |
| Saturday |
Mostly sunny, with a high near 80. East wind 5 to 10 mph. |
| Saturday Night |
A chance of rain showers after 1am. Partly cloudy, with a low around 62. Chance of precipitation is 30%. |
| Sunday |
A chance of rain showers before 7am. Partly sunny, with a high near 86. Chance of precipitation is 30%. |
| Sunday Night |
Partly cloudy, with a low around 72. |
| Monday |
Mostly sunny, with a high near 91. |
| Monday Night |
A chance of showers and thunderstorms after 7pm. Partly cloudy, with a low around 74. Chance of precipitation is 30%. |
| Tuesday |
A chance of showers and thunderstorms. Mostly sunny, with a high near 89. Chance of precipitation is 30%. |
Forecast from NOAA-NWS for Sun Prairie, WI.