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| TONIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY |
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| Mostly Cloudy | Chance of T-Storm | Chance of T-Storm | Showers | Chance of Showers | Chance of T-Storm | Partly Cloudy | Partly Cloudy | Mostly Clear | Mostly Sunny | Chance of Showers | Chance of Showers |
| Lo: 69°FLo: 21°C | Hi: 89°FHi: 32°C | Lo: 65°FLo: 18°C | Hi: 81°FHi: 27°C | Lo: 70°FLo: 21°C | Hi: 89°FHi: 32°C | Hi: 89°FHi: 32°C Lo: 69°FLo: 21°C | Hi: 89°FHi: 32°C Lo: 69°FLo: 21°C | Lo: 70°FLo: 21°C | Hi: 89°FHi: 32°C | Hi: 81°FHi: 27°C Lo: 69°FLo: 21°C | Hi: 81°FHi: 27°C Lo: 69°FLo: 21°C |
| POP: 50% | POP: 80% | POP: 70% | POP: 40% | POP: 50% | POP: 40% | POP: 40% |
POP = Probability of Precipitation.
Weather Outlook Updated: 337 PM CDT Mon Sep 14 2026 
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Issued: 229 PM CDT Mon Sep 14 2026
Key Messages
- After a brief respite, temperatures will again run well above normal the remainder of the week. Per LREF ensembles, probabilities of high temperatures above 95 degrees are generally 40-60% in areas south of I-70 through the upcoming weekend.
- An incoming cold front will stall over central Illinois, with periods of showers and thunderstorms Tuesday and Wednesday. There is a low (5-15%) probability of damaging winds with the storms Tuesday afternoon and evening.
Discussion
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