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Cooper Elementary School, IL Weather Forecast
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Cooper Elementary School Weather Forecast
| LATE THIS AFTERNOON | TONIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | MONDAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT |
 |  |  |  | | | |  |  | |  |  |
| Partly Cloudy | Mostly Clear | Mostly Sunny | Partly Cloudy | Partly Cloudy | Partly Cloudy | Partly Cloudy | Chance of Showers | Mostly Cloudy | Chance of Showers | Showers Likely | Showers |
| Hi: 75°FHi: 24°C | Lo: 61°FLo: 16°C | Hi: 80°FHi: 27°C | Lo: 65°FLo: 18°C | Hi: 85°FHi: 29°C | Lo: 65°FLo: 18°C | Hi: 75°FHi: 24°C | Lo: 61°FLo: 16°C | Hi: 80°FHi: 27°C | Lo: 70°FLo: 21°C | Hi: 81°FHi: 27°C | Lo: 65°FLo: 18°C |
| POP: 20% | POP: 30% | POP: 60% | POP: 60% |
POP = Probability of Precipitation.
Weather Outlook Updated: 231 PM CDT Thu Sep 10 2026 
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Issued: 114 PM CDT Thu Sep 10 2026
Key Messages
- Quieter conditions with near to slightly above normal temperatures through the weekend.
Discussion
... Issued at 114 PM CDT Thu Sep 10 2026
Through Sunday Night:
Ongoing rain showers are being observed south of the Kankakee River Valley this afternoon ahead of a mid level wave that is passing over the area. There has been an increase in shower coverage over the area, being located under the right entrance region of a 300 mb jet. However, lapse rates are fairly poor with the better well o...