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| TODAY | TONIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SUNDAY | SUNDAY NIGHT | MONDAY | MONDAY NIGHT | TUESDAY |
 |  |  | |  |  | | | | |  |  |
| Cloudy | Mostly Cloudy | Mostly Cloudy | Mostly Cloudy | Mostly Sunny | Partly Cloudy | Mostly Cloudy | Mostly Cloudy | Partly Cloudy | Mostly Clear | Mostly Clear | Chance of Showers |
| Hi: 69°FHi: 21°C | Lo: 59°FLo: 15°C | Hi: 79°FHi: 26°C | Lo: 59°FLo: 15°C | Hi: 75°FHi: 24°C | Lo: 51°FLo: 11°C | Hi: 75°FHi: 24°C Lo: 55°FLo: 13°C | Hi: 75°FHi: 24°C Lo: 55°FLo: 13°C | Lo: 55°FLo: 13°C | Hi: 81°FHi: 27°C Lo: 59°FLo: 15°C | Hi: 81°FHi: 27°C Lo: 59°FLo: 15°C | Hi: 85°FHi: 29°C |
| POP: 30% |
POP = Probability of Precipitation.
Weather Outlook Updated: 442 AM CDT Wed Sep 23 2026 
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Meteorlogic Glosserator
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Issued: 542 AM CDT Wed Sep 23 2026
Key Messages
- No significant weather is expected across central Illinois over the next week.
Discussion
... Issued at 239 AM CDT Wed Sep 23 2026
07z/2am surface analysis shows a sprawling ridge of high pressure extending from Quebec southwestward into the mid-Mississippi River Valley. Despite synoptic subsidence beneath the ridge and dry northeasterly flow from the Great Lakes, ample boundary layer moisture remains trapped beneath an inversion. While skies partially cleared yesterday afternoon, the l...