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Capitol Square, WI Weather Forecast
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Capitol Square Weather Forecast
| TONIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY |
 |  |  |  |  | | | | | |  | |
| Chance of Showers | Chance of Showers | Mostly Clear | Partly Sunny | Partly Cloudy | Partly Sunny | Partly Cloudy | Partly Sunny | Partly Cloudy | Chance of Showers | Chance of Showers | Chance of Showers |
| Lo: 50°FLo: 10°C | Hi: 60°FHi: 16°C | Lo: 45°FLo: 7°C | Hi: 65°FHi: 18°C | Lo: 49°FLo: 9°C | Hi: 65°FHi: 18°C | Lo: 49°FLo: 9°C | Hi: 65°FHi: 18°C | Lo: 49°FLo: 9°C | Hi: 65°FHi: 18°C | Lo: 51°FLo: 11°C | Hi: 69°FHi: 21°C |
| POP: 70% | POP: 40% | POP: 20% | POP: 40% | POP: 20% |
POP = Probability of Precipitation.
Weather Outlook Updated: 731 PM CDT Mon Sep 21 2026 
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Issued: 630 PM CDT Mon Sep 21 2026
Key Messages
- A prolonged period of high swim risk conditions continues into early Wednesday evening for all beaches along Lake Michigan.
- Scattered light rain showers are expected roughly along and west of a line from Fond du Lac to Janesville this evening into early Tuesday.
- Below normal temps are expected for the first half of the week, with gradually warming temps into the weekend.
Aviation
... Issued 630 PM CDT Mon Sep 21 2026
Seeing more robust shower activity around MSN and JVL, and there may b...