Weather WorldControl Data Institute, IL Weather Forecast
Quick Weather Clicks
Settings
Sun & Moon
Control Data Institute Weather Forecast
| THIS AFTERNOON | TONIGHT | MONDAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT |
 |  | | |  | | |  | |  |  | |
| Isolated Showers | Chance of Showers | Chance of Showers | Chance of Showers | Chance of Showers | Showers | Showers Likely | Chance of Rain | Chance of Rain | Mostly Cloudy | Mostly Cloudy | Mostly Cloudy |
| Hi: 61°FHi: 16°C | Lo: 55°FLo: 13°C | Hi: 61°FHi: 16°C | Lo: 60°FLo: 16°C | Hi: 71°FHi: 22°C | Lo: 59°FLo: 15°C | Hi: 65°FHi: 18°C | Lo: 50°FLo: 10°C | Hi: 61°FHi: 16°C | Lo: 49°FLo: 9°C | Hi: 59°FHi: 15°C | Lo: 41°FLo: 5°C |
| POP: 30% | POP: 20% | POP: 30% | POP: 30% | POP: 50% | POP: 90% | POP: 60% | POP: 20% | POP: 30% |
POP = Probability of Precipitation.
Weather Outlook Updated: 156 PM CST Sun Nov 01 2026 
Control Data Institute Radar Loop
Use the map search tool if you want to place a location marker on the radar map...
Control Data Institute Weather Map
Control Data Institute Quick Facts
Control Data Institute Forecast Discussion
Meteorlogic Glosserator
Instant definitions for any meteorological term.
Instant definitions for any meteorological term.
Issued: 154 PM CST Sun Nov 1 2026
Key Messages
- Periods of showers or sprinkles continue this afternoon. Additional showers and drizzle possible this evening and through the day on Monday.
- Greatest chances for more widespread showers and perhaps a few thunderstorms late Tuesday afternoon and evening/early overnight.
- Warmer conditions on Tuesday expected to eventually trend slightly below average by next weekend.
Discussion
... Issued at 153 PM CST Sun Nov 1 2026
Broad mid-level troughing across the region, combined with numerous embe...