Granville, IL Weather Forecast
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Granville Weather Forecast
| TODAY | TONIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SUNDAY | MONDAY | MONDAY NIGHT | TUESDAY |
| Chance of T-Storm | Chance of T-Storm | Showers | Showers | Mostly Sunny | Mostly Clear | Mostly Clear | Mostly Clear | Sunny | Mostly Clear | Mostly Clear |
| Hi: 71°FHi: 22°C | Lo: 69°FLo: 21°C | Hi: 75°FHi: 24°C | Lo: 55°FLo: 13°C | Hi: 69°FHi: 21°C | Hi: 70°FHi: 21°C Lo: 45°FLo: 7°C | Hi: 70°FHi: 21°C Lo: 45°FLo: 7°C | Hi: 70°FHi: 21°C Lo: 45°FLo: 7°C | Hi: 65°FHi: 18°C | Hi: 65°FHi: 18°C Lo: 41°FLo: 5°C | Hi: 65°FHi: 18°C Lo: 41°FLo: 5°C |
| POP: 100% | POP: 70% | POP: 90% | POP: 80% |
POP = Probability of Precipitation.
Weather Outlook Updated: 541 AM CDT Wed Sep 30 2026 

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Issued: 619 AM CDT Wed Sep 30 2026
Key Messages
- A prolonged period of wet weather will be seen through late week, as rounds of rainfall pass through the area, some heavy at times.
- A Flood Watch has been issued for areas expecting to see the heaviest rainfall, which will lead to rises on area rivers and potential areal flooding.
- A drier and cooler weather pattern will set up this weekend and into early next week.
Aviation
/12Z TAFS THROUGH 12Z THURSDAY/... Issued at 613 AM CDT Wed Sep 30 2026
A busy aviation forecast is ahead of us, a...
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