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Lake Wisconsin, WI Weather Forecast
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Lake Wisconsin Weather Forecast
| TONIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | MONDAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY |
 |  |  |  |  |  | |  | | | | |
| Chance of T-Storm | Chance of T-Storm | Partly Cloudy | Showers | Clear | Sunny | Partly Cloudy | Partly Sunny | Partly Cloudy | Chance of T-Storm | Chance of T-Storm | Showers |
| Lo: 61°FLo: 16°C | Hi: 80°FHi: 27°C | Lo: 59°FLo: 15°C | Hi: 79°FHi: 26°C | Lo: 51°FLo: 11°C | Hi: 79°FHi: 26°C | Lo: 51°FLo: 11°C | Hi: 79°FHi: 26°C | Lo: 59°FLo: 15°C | Hi: 80°FHi: 27°C | Lo: 61°FLo: 16°C | Hi: 81°FHi: 27°C |
| POP: 50% | POP: 50% | POP: 20% | POP: 20% | POP: 40% | POP: 20% |
POP = Probability of Precipitation.
Weather Outlook Updated: 1030 PM CDT Thu Aug 20 2026 
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Issued: 1059 PM CDT Thu Aug 20 2026
Key Messages
- Scattered showers and thunderstorms (30 to 50 percent chances) with passing cold front mainly Friday afternoon and evening. Gusty winds and small hail may occur.
- Small chances (20 to 40 percent) for a shower or storm Saturday afternoon for portions of east central and southeast Wisconsin.
Aviation
... Issued 1100 PM CDT Thu Aug 20 2026
Quiet in large part tonight with VFR conditions generally expected outside of a few showers potentially reducing VSBYs for ...