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Whitewater Lake, WI Weather Forecast
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Whitewater Lake Weather Forecast
| REST OF TODAY | TONIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | MONDAY | MONDAY NIGHT |
 |  |  |  |  |  | | | |  | | |
| Partly Sunny | Patchy Fog | Sunny | Chance of Showers | Chance of T-Storm | Mostly Clear | Sunny | Mostly Clear | Mostly Sunny | Partly Cloudy | Partly Sunny | Partly Cloudy |
| Hi: 75°FHi: 24°C | Lo: 55°FLo: 13°C | Hi: 80°FHi: 27°C | Lo: 59°FLo: 15°C | Hi: 79°FHi: 26°C | Lo: 60°FLo: 16°C | Hi: 79°FHi: 26°C | Lo: 59°FLo: 15°C | Hi: 75°FHi: 24°C | Lo: 55°FLo: 13°C | Hi: 75°FHi: 24°C | Lo: 59°FLo: 15°C |
| POP: 20% | POP: 70% |
POP = Probability of Precipitation.
Weather Outlook Updated: 130 PM CDT Wed Aug 19 2026 
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Issued: 151 PM CDT Wed Aug 19 2026
Key Messages
- Patchy dense fog may occur overnight into early Thursday morning across parts of south central Wisconsin.
- Dry and pleasant conditions through Thursday with drier air in place.
- Shower/storm chances return Thursday night into Friday.
Aviation
... Issued 151 PM CDT Wed Aug 19 2026
High pressure over the region is expected to slowly shift to the southeast into Thursday. This will bring a period of dry conditions with light winds. There may be patchy fog with 1 ...