Illiopolis High School, IL Weather Forecast
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Illiopolis High School Weather Forecast
| REST OF TODAY | TONIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | MONDAY | TUESDAY | WEDNESDAY | THURSDAY |
| Sunny | Mostly Clear | Partly Sunny | Partly Cloudy | Mostly Sunny | Mostly Clear | Mostly Clear | Mostly Clear | Mostly Clear | Mostly Clear |
| Hi: 85°FHi: 29°C | Lo: 61°FLo: 16°C | Hi: 85°FHi: 29°C | Lo: 69°FLo: 21°C | Hi: 91°FHi: 33°C | Hi: 99°FHi: 37°C Lo: 75°FLo: 24°C | Hi: 99°FHi: 37°C Lo: 75°FLo: 24°C | Hi: 99°FHi: 37°C Lo: 75°FLo: 24°C | Hi: 99°FHi: 37°C Lo: 75°FLo: 24°C | Hi: 99°FHi: 37°C Lo: 75°FLo: 24°C |
POP = Probability of Precipitation.
Weather Outlook Updated: 1032 AM CDT Fri Aug 28 2026 

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Issued: 640 AM CDT Fri Aug 28 2026
Key Messages
- Comfortable and dry weather is anticipated today through Saturday, followed by the return of hot and humid conditions much of next week, starting Sunday.
Discussion
... Issued at 345 AM CDT Fri Aug 28 2026
Nearly clear skies across central IL allowed ideal viewing of the partial lunar eclipse late Thursday evening, peaking at or just after 1112 pm cdt with 90-96% of the moon covered by Earth`s shadow.
Currently some clouds where over northeast IL/NW Indiana and over central Indiana. Patc...
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