Control Data Institute, IL Weather Forecast
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Control Data Institute Weather Forecast
| TONIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | MONDAY |
| Chance of T-Storm | Chance of T-Storm | Mostly Cloudy | Clearing | Clear | Sunny | Partly Cloudy | Chance of T-Storm | Chance of Showers | Chance of Showers | Chance of Showers | Chance of Showers |
| Lo: 71°FLo: 22°C | Hi: 81°FHi: 27°C | Lo: 69°FLo: 21°C | Hi: 79°FHi: 26°C | Lo: 60°FLo: 16°C | Hi: 79°FHi: 26°C | Lo: 65°FLo: 18°C | Hi: 85°FHi: 29°C | Lo: 69°FLo: 21°C | Hi: 79°FHi: 26°C | Lo: 65°FLo: 18°C | Hi: 81°FHi: 27°C |
| POP: 50% | POP: 70% | POP: 40% | POP: 40% | POP: 30% | POP: 40% | POP: 50% |
POP = Probability of Precipitation.
Weather Outlook Updated: 621 PM CDT Tue Sep 08 2026 

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Issued: 624 PM CDT Tue Sep 8 2026
Key Messages
- Showers and a few storms will move across the area late tonight through Wednesday.
- Thursday and Friday look pleasant.
- The next opportunities for rain will arrive this weekend and continue into early next week.
Discussion
... Issued at 120 PM CDT Tue Sep 8 2026
Per a recent subjective surface analyses, a 1000 mb surface low pressure system is moving across southern Manitoba well to the north of a surface high pressure system parked along the Atlantic coast. A cold front extends southward...
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