The Commons, IL Weather Forecast
Quick Weather Clicks
Settings
Sun & Moon
The Commons Weather Forecast
| LATE THIS AFTERNOON | TONIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT |
| Chance of Showers | Chance of Showers | Chance of Showers | Partly Cloudy | Partly Cloudy | Mostly Cloudy | Partly Cloudy | Partly Cloudy | Partly Cloudy | Mostly Cloudy | Mostly Cloudy | Mostly Cloudy |
| Hi: 61°FHi: 16°C | Lo: 59°FLo: 15°C | Hi: 65°FHi: 18°C | Lo: 55°FLo: 13°C | Hi: 69°FHi: 21°C | Lo: 55°FLo: 13°C | Hi: 69°FHi: 21°C | Lo: 51°FLo: 11°C | Hi: 65°FHi: 18°C | Lo: 51°FLo: 11°C | Hi: 69°FHi: 21°C | Lo: 55°FLo: 13°C |
| POP: 50% | POP: 40% | POP: 20% |
POP = Probability of Precipitation.
Weather Outlook Updated: 226 PM CDT Tue Sep 22 2026 

The Commons Radar Loop
Use the map search tool if you want to place a location marker on the radar map...
The Commons Weather Map
The Commons Quick Facts
The Commons Forecast Discussion
Meteorlogic Glosserator
Instant definitions for any meteorological term.
Instant definitions for any meteorological term.
Issued: 210 PM CDT Tue Sep 22 2026
Key Messages
- Widely scattered showers are expected tonight.
- Generally slightly below to below average temperatures expected into at least the first part of the upcoming weekend.
Discussion
... Issued at 210 PM CDT Tue Sep 22 2026
Water vapor imagery early this afternoon shows a compact, but well defined closed mid-upper level low over eastern IA and northwest IL. This system has been a bit slower to weaken and devolve into an open wave than guidance progged yesterday. The 18z sounding that just came...
Weather World