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Post Lake, WI Weather Forecast
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Post Lake Weather Forecast
| THIS AFTERNOON | TONIGHT | SUNDAY | SUNDAY NIGHT | MONDAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT |
 |  |  |  |  | |  |  | |  | | |
| Mostly Sunny | Partly Cloudy | Partly Sunny | Patchy Fog | Clearing | Patchy Fog | Chance of Showers | Showers | Chance of Showers | Chance of Showers | Chance of Showers | Partly Cloudy |
| Hi: 65°FHi: 18°C | Lo: 45°FLo: 7°C | Hi: 69°FHi: 21°C | Lo: 51°FLo: 11°C | Hi: 75°FHi: 24°C | Lo: 51°FLo: 11°C | Hi: 71°FHi: 22°C | Lo: 55°FLo: 13°C | Hi: 70°FHi: 21°C Lo: 51°FLo: 11°C | Hi: 70°FHi: 21°C Lo: 51°FLo: 11°C | Hi: 69°FHi: 21°C | Lo: 49°FLo: 9°C |
| POP: 30% | POP: 60% | POP: 30% | POP: 30% | POP: 40% |
POP = Probability of Precipitation.
Weather Outlook Updated: 123 PM CDT Sat Sep 26 2026 
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Instant definitions for any meteorological term.
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Issued: 201 PM CDT Sat Sep 26 2026
Key Messages
- Patchy dense fog is expected to develop over eastern and northeast Wisconsin late tonight into early Sunday morning.
- Light rain showers are possible across central Wisconsin on Sunday, with better rain chances arriving Tuesday afternoon and Tuesday night.
- Trends favor a return to dry weather from Wednesday through Friday despite lower forecast predictability.
Discussion
... Issued at 201 PM CDT Sat Sep 26 2026
Current synoptic pattern and regional weather conditions: The latest analysis...