| National Weather Service Forecast for:
Sun Prairie, WI Issued by: National Weather Service Milwaukee/Sullivan/Dousman, WI |
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| Updated: 07/03/2026 1:21pm | ||||||||||||||||||||||||||||||||||||||||
| Sun Prairie WI | ||||||||||||||||||||||||||||||||||||||||
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| This Afternoon |
A slight chance of showers and thunderstorms. Partly sunny, with a high near 83. West wind around 5 mph. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible. |
| Tonight |
A slight chance of showers and thunderstorms. Mostly cloudy, with a low around 68. Southwest wind 0 to 5 mph. Chance of precipitation is 20%. New rainfall amounts between a tenth and quarter of an inch possible. |
| Independence Day |
Patchy fog and a slight chance of showers and thunderstorms before noon, then a chance of showers and thunderstorms between noon and 1pm, then a chance of showers and thunderstorms. Mostly cloudy, with a high near 84. Southwest wind 0 to 5 mph. Chance of precipitation is 40%. New rainfall amounts between a quarter and half of an inch possible. |
| Saturday Night |
A chance of showers and thunderstorms before 7pm, then a chance of showers and thunderstorms between 7pm and 10pm, then a slight chance of showers and thunderstorms. Mostly cloudy, with a low around 64. North wind around 5 mph. Chance of precipitation is 40%. New rainfall amounts between a quarter and half of an inch possible. |
| Sunday |
A slight chance of rain showers. Partly sunny, with a high near 80. Northwest wind 5 to 10 mph. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible. |
| Sunday Night |
A slight chance of rain showers before 7pm. Partly cloudy, with a low around 60. Northwest wind 5 to 10 mph. Chance of precipitation is 20%. |
| Monday |
Mostly sunny, with a high near 80. North wind around 5 mph. |
| Monday Night |
Partly cloudy, with a low around 60. North wind 0 to 5 mph. |
| Tuesday |
Mostly sunny, with a high near 84. |
| Tuesday Night |
Partly cloudy, with a low around 63. |
| Wednesday |
Mostly sunny, with a high near 85. |
| Wednesday Night |
A chance of showers and thunderstorms between 7pm and 1am, then a chance of showers and thunderstorms. Partly cloudy, with a low around 67. Chance of precipitation is 30%. |
| Thursday |
A chance of showers and thunderstorms before 1pm, then a chance of showers and thunderstorms. Partly sunny, with a high near 84. Chance of precipitation is 30%. |
| Thursday Night |
A chance of showers and thunderstorms before 7pm, then a chance of showers and thunderstorms. Partly cloudy, with a low around 66. Chance of precipitation is 30%. |
Forecast from NOAA-NWS for Sun Prairie, WI.