Cook Memorial Park, IL Weather Forecast
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Cook Memorial Park Weather Forecast
| EARLY THIS MORNING | TODAY | TONIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY |
| Partly Cloudy | Chance of Showers | Partly Cloudy | Chance of T-Storm | Chance of T-Storm | Partly Cloudy | Partly Cloudy | Mostly Sunny | Partly Cloudy | Partly Cloudy | Chance of Showers | Chance of Showers |
| Hi: 65°FHi: 18°C | Hi: 79°FHi: 26°C | Lo: 61°FLo: 16°C | Hi: 80°FHi: 27°C | Lo: 61°FLo: 16°C | Hi: 75°FHi: 24°C | Lo: 60°FLo: 16°C | Hi: 75°FHi: 24°C | Lo: 59°FLo: 15°C | Hi: 79°FHi: 26°C | Lo: 61°FLo: 16°C | Hi: 79°FHi: 26°C |
| POP: 20% | POP: 60% | POP: 70% | POP: 30% | POP: 30% |
POP = Probability of Precipitation.
Weather Outlook Updated: 220 AM CDT Mon Aug 17 2026 

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Cook Memorial Park Forecast Discussion
Issued: 325 AM CDT Mon Aug 17 2026
Key Messages
- Threat for severe thunderstorms and flash flooding Tuesday afternoon/night.
Discussion
... Issued at 325 AM CDT Mon Aug 17 2026
Any lingering showers have since shifted southeast of the area in the wake of a cold front which will bring a brief break today from the active weather pattern. A reinforcing lake enhanced front is currently moving down the western side of Lake Michigan and will drift into the area this morning. A low-level convergence axis is expe...
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