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Perry Park, IL Weather Forecast
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Perry Park Weather Forecast
| LATE THIS AFTERNOON | TONIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | MONDAY | MONDAY NIGHT |
 | |  |  |  |  |  |  | | | | |
| Showers | Showers | Chance of T-Storm | Chance of T-Storm | Clearing | Mostly Clear | Mostly Sunny | Partly Cloudy | Mostly Sunny | Mostly Clear | Sunny | Clear |
| Hi: 65°FHi: 18°C | Lo: 65°FLo: 18°C | Hi: 71°FHi: 22°C | Lo: 55°FLo: 13°C | Hi: 65°FHi: 18°C | Lo: 45°FLo: 7°C | Hi: 65°FHi: 18°C | Lo: 49°FLo: 9°C | Hi: 69°FHi: 21°C | Lo: 45°FLo: 7°C | Hi: 61°FHi: 16°C | Lo: 45°FLo: 7°C |
| POP: 90% | POP: 90% | POP: 100% | POP: 100% |
POP = Probability of Precipitation.
Weather Outlook Updated: 436 PM CDT Wed Sep 30 2026 
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Issued: 306 PM CDT Wed Sep 30 2026
Key Messages
- Periods of rain, heavy at times, expected through early Friday morning.
- Large footprint of 1" to 3" rainfall amounts across the region may lead to significant rises on area rivers and streams.
- Potential for localized corridors of rainfall amounts in excess of 3" Thursday afternoon and evening.
- Dry and seasonably cool this weekend into early next week.
Discussion
... Issued at 306 PM CDT Wed Sep 30 2026
Several small-scale mid-level impulses, emanating from a broader trough shifting acro...