| National Weather Service Forecast for:
Sun Prairie, WI Issued by: National Weather Service Milwaukee/Sullivan/Dousman, WI |
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| Updated: 09/25/2025 2:24pm | ||||||||||||||||||||||||||||||||||||||||
| Sun Prairie WI | ||||||||||||||||||||||||||||||||||||||||
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| This Afternoon |
Sunny, with a high near 73. Northwest wind around 5 mph. |
| Tonight |
Clear, with a low around 55. West wind around 5 mph. |
| Friday |
Sunny, with a high near 77. Northwest wind 5 to 10 mph. |
| Friday Night |
Partly cloudy, with a low around 55. Southeast wind 0 to 10 mph. |
| Saturday |
Sunny, with a high near 81. Southwest wind 0 to 10 mph. |
| Saturday Night |
Mostly clear, with a low around 54. Northwest wind 0 to 5 mph. |
| Sunday |
Sunny, with a high near 79. East wind 0 to 5 mph. |
| Sunday Night |
Mostly clear, with a low around 55. East wind around 0 mph. |
| Monday |
Sunny. High near 82, with temperatures falling to around 77 in the afternoon. |
| Monday Night |
Mostly clear, with a low around 54. |
| Tuesday |
Mostly sunny, with a high near 79. |
| Tuesday Night |
Partly cloudy, with a low around 54. |
| Wednesday |
Mostly sunny. High near 76, with temperatures falling to around 71 in the afternoon. |
| Wednesday Night |
Partly cloudy, with a low around 53. |
Forecast from NOAA-NWS for Sun Prairie, WI.