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Polonia Weather Forecast
| REST OF THE AFTERNOON | TONIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT |
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| Mostly Cloudy | Chance of T-Storm | Chance of Showers | Chance of Showers | Showers Likely | Mostly Cloudy | Sunny | Patchy Fog | Partly Cloudy | Partly Cloudy | Mostly Sunny | Clear |
| Hi: 73°FHi: 23°C | Lo: 60°FLo: 16°C | Hi: 71°FHi: 22°C | Lo: 60°FLo: 16°C | Hi: 69°FHi: 21°C | Lo: 41°FLo: 5°C | Hi: 65°FHi: 18°C | Lo: 39°FLo: 4°C | Hi: 65°FHi: 18°C Lo: 41°FLo: 5°C | Hi: 65°FHi: 18°C Lo: 41°FLo: 5°C | Hi: 65°FHi: 18°C | Hi: 60°FHi: 16°C Lo: 39°FLo: 4°C |
| POP: 90% | POP: 40% | POP: 40% | POP: 70% |
POP = Probability of Precipitation.
Weather Outlook Updated: 343 PM CDT Tue Sep 29 2026 
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Issued: 1225 PM CDT Tue Sep 29 2026
Key Messages
- Widespread soaking rainfall is expected over most of the area from this evening through Thursday morning. Rainfall amounts between 1 to 1.5" are forecast across portions of central and east-central Wisconsin.
- Patchy frost will be possible at times across northern Wisconsin later this week as a cooler and drier airmass settles in.
- Increasing southerly winds Wednesday will create hazardous swim and boating conditions on Lake Michigan.
Discussion
... Issued at 1224 PM CDT Tue Sep 29 2026
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