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Trail Tree Park, IL Weather Forecast
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Trail Tree Park Weather Forecast
| REST OF TONIGHT | SUNDAY | SUNDAY NIGHT | MONDAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY |
 |  |  | | | | |  |  | | | |
| Isolated Showers | Mostly Sunny | Clear | Sunny | Clear | Sunny | Mostly Clear | Partly Cloudy | Partly Cloudy | Partly Cloudy | Partly Cloudy | Partly Cloudy |
| Lo: 50°FLo: 10°C | Hi: 69°FHi: 21°C | Lo: 41°FLo: 5°C | Hi: 61°FHi: 16°C | Lo: 45°FLo: 7°C | Hi: 69°FHi: 21°C | Lo: 51°FLo: 11°C | Hi: 71°FHi: 22°C | Lo: 49°FLo: 9°C | Hi: 69°FHi: 21°C | Lo: 49°FLo: 9°C | Hi: 69°FHi: 21°C |
| POP: 20% |
POP = Probability of Precipitation.
Weather Outlook Updated: 121 AM CDT Sun Oct 04 2026 
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Issued: 152 AM CDT Sun Oct 4 2026
Key Messages
- Dry weather with seasonable temperatures are expected through much of the upcoming week.
Discussion
... Issued at 152 AM CDT Sun Oct 4 2026
A potent mid-level wave crossing the northern Great Lakes early this morning continues to encounter dry mid-level air across the CWA. However, the strong forcing interacting with little available moisture below modestly steep lapse rates has yielded an axis of isolated showers strong enough to result in precip reaching the surface north of I-88/290 ...