| National Weather Service Forecast for:
Sun Prairie, WI Issued by: National Weather Service Milwaukee/Sullivan/Dousman, WI |
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| Updated: 06/12/2026 12:47pm | ||||||||||||||||||||||||||||||||||||||||
| Sun Prairie WI | ||||||||||||||||||||||||||||||||||||||||
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| This Afternoon |
Sunny, with a high near 79. West wind around 15 mph, with gusts as high as 30 mph. |
| Tonight |
Mostly clear, with a low around 60. Southwest wind 5 to 10 mph. |
| Saturday |
A slight chance of showers and thunderstorms between 1pm and 2pm, then showers and thunderstorms likely. Mostly sunny, with a high near 81. Southwest wind 10 to 15 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch possible. |
| Saturday Night |
Showers and thunderstorms likely before 7pm, then a chance of showers and thunderstorms between 7pm and 2am. Partly cloudy, with a low around 53. Northwest wind 5 to 10 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch possible. |
| Sunday |
Mostly sunny, with a high near 68. Northwest wind 10 to 15 mph. New rainfall amounts less than a tenth of an inch possible. |
| Sunday Night |
Mostly clear, with a low around 50. West wind 5 to 10 mph. |
| Monday |
Sunny, with a high near 73. West wind 5 to 10 mph. |
| Monday Night |
Partly cloudy, with a low around 52. West wind 5 to 10 mph. |
| Tuesday |
A slight chance of rain showers between 7am and 1pm, then a chance of showers and thunderstorms. Mostly sunny, with a high near 74. Chance of precipitation is 50%. |
| Tuesday Night |
A chance of showers and thunderstorms before 1am, then a chance of showers and thunderstorms. Partly cloudy, with a low around 53. Chance of precipitation is 50%. |
| Wednesday |
Showers and thunderstorms likely. Partly sunny, with a high near 76. Chance of precipitation is 60%. |
| Wednesday Night |
Showers and thunderstorms likely. Mostly cloudy, with a low around 57. Chance of precipitation is 70%. |
| Thursday |
A chance of showers and thunderstorms. Mostly sunny, with a high near 76. Chance of precipitation is 50%. |
| Thursday Night |
A chance of showers and thunderstorms before 1am. Mostly clear, with a low around 55. Chance of precipitation is 30%. |
Forecast from NOAA-NWS for Sun Prairie, WI.