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Decorra, IL Weather Forecast
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| THIS AFTERNOON | TONIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | MONDAY |
 |  |  |  | |  | |  |  |  |  | |
| Chance of T-Storm | Chance of T-Storm | Mostly Cloudy | Mostly Cloudy | Mostly Cloudy | Chance of Showers | Mostly Cloudy | Partly Cloudy | Partly Cloudy | Mostly Clear | Mostly Clear | Sunny |
| Hi: 69°FHi: 21°C | Lo: 51°FLo: 11°C | Hi: 55°FHi: 13°C | Lo: 45°FLo: 7°C | Hi: 55°FHi: 13°C | Lo: 41°FLo: 5°C | Hi: 51°FHi: 11°C | Hi: 51°FHi: 11°C Lo: 35°FLo: 2°C | Hi: 51°FHi: 11°C Lo: 35°FLo: 2°C | Hi: 59°FHi: 15°C Lo: 39°FLo: 4°C | Hi: 59°FHi: 15°C Lo: 39°FLo: 4°C | Hi: 65°FHi: 18°C |
| POP: 100% | POP: 70% | POP: 30% |
POP = Probability of Precipitation.
Weather Outlook Updated: 1226 PM CST Tue Nov 03 2026 
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Issued: 1208 PM CST Tue Nov 3 2026
Key Messages
- A large storm system will continue to move through the region today and Wednesday, bringing widespread rainfall and breezy southerly winds.
- Isolated severe storms, with a low but non-zero chance of a brief tornado, are possible this afternoon, mainly over portions of southeastern Iowa and west-central Illinois and all of northeast Missouri.
- As the system departs, cooler conditions are expected, and spotty rain showers will be possible at times through Thursday night.
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