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Gillum, IL Weather Forecast
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Gillum Weather Forecast
| TODAY | TONIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SUNDAY | MONDAY |
 |  |  |  |  |  |  |  |  | | |
| Chance of T-Storm | Chance of T-Storm | Chance of Rain | Partly Cloudy | Mostly Sunny | Chance of Rain | Mostly Cloudy | Mostly Cloudy | Partly Cloudy | Partly Cloudy | Sunny |
| Hi: 71°FHi: 22°C | Lo: 59°FLo: 15°C | Hi: 61°FHi: 16°C | Lo: 45°FLo: 7°C | Hi: 61°FHi: 16°C | Lo: 41°FLo: 5°C | Hi: 59°FHi: 15°C Lo: 39°FLo: 4°C | Hi: 59°FHi: 15°C Lo: 39°FLo: 4°C | Hi: 59°FHi: 15°C Lo: 35°FLo: 2°C | Hi: 59°FHi: 15°C Lo: 35°FLo: 2°C | Hi: 59°FHi: 15°C |
| POP: 70% | POP: 100% | POP: 50% | POP: 30% |
POP = Probability of Precipitation.
Weather Outlook Updated: 509 AM CST Tue Nov 03 2026 
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Issued: 553 AM CST Tue Nov 3 2026
Key Messages
- Gusty south winds of 30 to 40 mph will develop today ahead of an approaching cold front.
- A localized threat for severe thunderstorms will develop late this afternoon into this evening, mainly south of Interstate 72. The primary threat is isolated damaging wind gusts.
- Rain totals tonight will be lighter than earlier expectations, with most areas receiving between 0.10 and 0.50 inches. There is only a low (10% to 30%) chance for rainfall exceeding 1 inch.
- Breezy and cooler conditions w...