| National Weather Service Forecast for:
Sun Prairie, WI Issued by: National Weather Service Milwaukee/Sullivan/Dousman, WI |
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| Updated: 05/01/2026 5:26pm | ||||||||||||||||||||||||||||||||||||||||
| Sun Prairie WI | ||||||||||||||||||||||||||||||||||||||||
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Freeze Warning issued May 1 at 1:39PM CDT until May 2 at 8:00AM CDT
| This Afternoon |
Mostly cloudy, with a high near 47. North wind around 5 mph. |
| Tonight |
Widespread frost after midnight. Partly cloudy, with a low around 31. North wind around 5 mph. |
| Saturday |
Widespread frost before 8am. Mostly sunny, with a high near 57. Northwest wind 0 to 10 mph. |
| Saturday Night |
Isolated rain showers after 4am. Mostly cloudy, with a low around 42. Southwest wind 5 to 10 mph. Chance of precipitation is 20%. |
| Sunday |
Scattered rain showers. Partly sunny, with a high near 65. Southwest wind 10 to 15 mph, with gusts as high as 30 mph. Chance of precipitation is 30%. |
| Sunday Night |
Isolated rain showers before 7pm. Mostly clear, with a low around 43. West wind 5 to 10 mph. Chance of precipitation is 20%. |
| Monday |
A chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 73. Southwest wind 5 to 15 mph, with gusts as high as 30 mph. Chance of precipitation is 40%. New rainfall amounts less than a tenth of an inch possible. |
| Monday Night |
A chance of showers and thunderstorms before 1am. Mostly cloudy, with a low around 43. West wind 5 to 15 mph. Chance of precipitation is 40%. New rainfall amounts less than a tenth of an inch possible. |
| Tuesday |
A chance of rain showers after 1pm. Partly sunny, with a high near 59. Chance of precipitation is 30%. |
| Tuesday Night |
A chance of rain showers before 1am. Mostly cloudy, with a low around 38. Chance of precipitation is 30%. |
| Wednesday |
A slight chance of rain showers after 1pm. Partly sunny, with a high near 56. Chance of precipitation is 20%. |
| Wednesday Night |
A slight chance of rain showers before 1am. Mostly cloudy, with a low around 37. Chance of precipitation is 20%. |
| Thursday |
A chance of rain showers after 1pm. Mostly sunny, with a high near 57. Chance of precipitation is 30%. |
| Thursday Night |
A chance of rain showers before 7pm. Partly cloudy, with a low around 38. Chance of precipitation is 30%. |
Forecast from NOAA-NWS for Sun Prairie, WI.