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Unity Chapel, IL Weather Forecast
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Unity Chapel Weather Forecast
| TONIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | MONDAY | MONDAY NIGHT | TUESDAY |
 |  | |  |  | |  |  | |  | | |
| Chance of T-Storm | Mostly Sunny | Chance of T-Storm | Chance of Showers | Partly Cloudy | Mostly Sunny | Chance of Showers | Chance of T-Storm | Chance of Showers | Chance of Showers | Chance of Showers | Chance of Showers |
| Lo: 71°FLo: 22°C | Hi: 91°FHi: 33°C | Lo: 69°FLo: 21°C | Hi: 89°FHi: 32°C | Lo: 69°FLo: 21°C | Hi: 95°FHi: 35°C | Lo: 70°FLo: 21°C | Hi: 89°FHi: 32°C | Lo: 65°FLo: 18°C | Hi: 85°FHi: 29°C | Lo: 61°FLo: 16°C | Hi: 80°FHi: 27°C |
| POP: 20% | POP: 20% | POP: 40% | POP: 40% | POP: 40% | POP: 40% | POP: 40% | POP: 40% | POP: 30% |
POP = Probability of Precipitation.
Weather Outlook Updated: 607 PM CDT Wed Sep 16 2026 
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Meteorlogic Glosserator
Instant definitions for any meteorological term.
Instant definitions for any meteorological term.
Issued: 555 PM CDT Wed Sep 16 2026
Key Messages
- A Heat Advisory has been issued for areas south of I-70 through Thursday, with afternoon heat index values near 105 degrees. While humidity levels drop off a bit late in the week, highs in the 90s are likely to prevail in this area through the weekend.
- After heavy rain occurred last night over the northern parts of the forecast area, potential exists for additional heavy rain tonight. While the greatest threat is closer to I-80, a Flood Watch has been issued for Knox, Stark and Marsh...