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Heidmann Lake Weather Forecast
| REST OF THE NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | MONDAY | MONDAY NIGHT | TUESDAY |
 |  |  | |  | | |  |  | | | |
| Chance of Showers | Chance of Showers | Partly Cloudy | Chance of Showers | Showers | Showers | Chance of Showers | Mostly Cloudy | Mostly Cloudy | Chance of Showers | Mostly Cloudy | Mostly Cloudy |
| Lo: 55°FLo: 13°C | Hi: 71°FHi: 22°C | Lo: 55°FLo: 13°C | Hi: 69°FHi: 21°C | Lo: 55°FLo: 13°C | Hi: 69°FHi: 21°C | Lo: 55°FLo: 13°C | Hi: 65°FHi: 18°C Lo: 51°FLo: 11°C | Hi: 65°FHi: 18°C Lo: 51°FLo: 11°C | Hi: 65°FHi: 18°C | Hi: 65°FHi: 18°C Lo: 51°FLo: 11°C | Hi: 65°FHi: 18°C Lo: 51°FLo: 11°C |
| POP: 50% | POP: 40% | POP: 50% | POP: 100% | POP: 90% | POP: 40% | POP: 30% |
POP = Probability of Precipitation.
Weather Outlook Updated: 1227 AM CDT Thu Sep 17 2026 
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Issued: 123 AM CDT Thu Sep 17 2026
Key Messages
- Light rain over northern and central Wisconsin will diminish this morning, with skies gradually clearing this afternoon.
- A period of heavy rainfall is expected Friday afternoon through Saturday, with the heaviest rain occurring Friday night. A 40 to 60 percent chance of rainfall exceeding 2 inches exists roughly south of Highway 29.
- A quieter and drier weather pattern will settle into the region early to mid next week.
Discussion
... Issued at 1256 AM CDT Thu Sep 17 2026
The latest RAP ...