Mount Church, IL Weather Forecast
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Mount Church Weather Forecast
| TONIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SUNDAY | MONDAY | MONDAY NIGHT | TUESDAY |
| Mostly Clear | Chance of T-Storm | Chance of T-Storm | Showers | Partly Cloudy | Mostly Sunny | Mostly Clear | Partly Cloudy | Partly Cloudy | Partly Cloudy | Chance of Showers | Chance of Showers |
| Lo: 71°FLo: 22°C | Hi: 95°FHi: 35°C | Lo: 69°FLo: 21°C | Hi: 80°FHi: 27°C | Lo: 60°FLo: 16°C | Hi: 81°FHi: 27°C | Lo: 61°FLo: 16°C | Hi: 89°FHi: 32°C Lo: 65°FLo: 18°C | Hi: 89°FHi: 32°C Lo: 65°FLo: 18°C | Hi: 89°FHi: 32°C Lo: 65°FLo: 18°C | Hi: 89°FHi: 32°C Lo: 69°FLo: 21°C | Hi: 89°FHi: 32°C Lo: 69°FLo: 21°C |
| POP: 20% | POP: 90% | POP: 90% | POP: 30% | POP: 30% |
POP = Probability of Precipitation.
Weather Outlook Updated: 637 PM CDT Tue Sep 08 2026 

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Issued: 639 PM CDT Tue Sep 8 2026
Key Messages
- Heat indices will top out around 100 degrees Wednesday afternoon south of I-72 due to high temperatures in the 90s and rising humidity levels.
- Scattered thunderstorms are forecast Wednesday afternoon, becoming more widespread Wednesday night along a stalled front; localized heavy rainfall of 1 to 3 inches could cause localized flooding, particularly south of I-70. There is a marginal risk (level 1 of 5) for severe thunderstorms for much of central and southeast Illinois.
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