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Cathedral Square, WI Weather Forecast
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Cathedral Square Weather Forecast
| TODAY | TONIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | MONDAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT |
 |  |  |  |  | | |  | | | | |
| Showers | Partly Cloudy | Chance of Showers | Chance of T-Storm | Chance of T-Storm | Chance of T-Storm | Chance of Showers | Chance of Showers | Chance of Showers | Chance of Showers | Chance of Showers | Chance of Showers |
| Hi: 69°FHi: 21°C | Lo: 59°FLo: 15°C | Hi: 70°FHi: 21°C | Lo: 60°FLo: 16°C | Hi: 71°FHi: 22°C | Lo: 59°FLo: 15°C | Hi: 65°FHi: 18°C | Lo: 51°FLo: 11°C | Hi: 61°FHi: 16°C | Lo: 51°FLo: 11°C | Hi: 65°FHi: 18°C | Lo: 51°FLo: 11°C |
| POP: 40% | POP: 40% | POP: 90% | POP: 100% | POP: 70% | POP: 40% | POP: 30% | POP: 40% | POP: 20% | POP: 20% | POP: 20% |
POP = Probability of Precipitation.
Weather Outlook Updated: 731 AM CDT Thu Sep 17 2026 
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Issued: 645 AM CDT Thu Sep 17 2026
Key Messages
- Rain along the WI/IL border will continue to produce isolated lightning through this morning. Elsewhere, scattered showers will taper off by mid-morning.
- Prolonged period of moderate to high swimming risk conditions expected Friday evening into early next week.
- Periods of widespread showers & storms expected Friday evening through Saturday. Locally heavy rainfall and flooding impacts are possible.
- Off & on lighter rain Sunday into early next week. Conditions dry out by mid-week.