Greenville, IL Weather Forecast
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Greenville Weather Forecast
| REST OF TONIGHT | MONDAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY |
| Drizzle | Patchy Fog | Mostly Cloudy | Chance of T-Storm | Chance of T-Storm | Chance of Rain | Mostly Clear | Partly Cloudy | Partly Cloudy | Partly Sunny | Partly Cloudy | Partly Cloudy |
| Lo: 55°FLo: 13°C | Hi: 65°FHi: 18°C | Lo: 60°FLo: 16°C | Hi: 75°FHi: 24°C | Lo: 55°FLo: 13°C | Hi: 65°FHi: 18°C | Lo: 45°FLo: 7°C | Hi: 65°FHi: 18°C Lo: 41°FLo: 5°C | Hi: 65°FHi: 18°C Lo: 41°FLo: 5°C | Hi: 61°FHi: 16°C | Hi: 61°FHi: 16°C Lo: 39°FLo: 4°C | Hi: 61°FHi: 16°C Lo: 39°FLo: 4°C |
| POP: 90% | POP: 100% | POP: 20% |
POP = Probability of Precipitation.
Weather Outlook Updated: 1228 AM CST Mon Nov 02 2026 

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Issued: 1052 PM CST Sun Nov 1 2026
Key Messages
- A strong storm system will bring rain and a few thunderstorms to the area Monday night through Wednesday. Flooding and/or severe thunderstorms are not expected with this system.
- Cooler temperatures near seasonal normals are expected in the wake of the storm system for Thursday into the weekend.
Aviation
/00Z TAFS THROUGH 06Z TUESDAY/... Issued at 1051 PM CST Sun Nov 1 2026
IFR ceilings will continue to be more prevalent through Monday morning. There remains a chance of light drizzle or ...
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