Weather WorldOrchard Brook Park, IL Weather Forecast
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Orchard Brook Park Weather Forecast
| TONIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | MONDAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY |
 |  |  |  |  | | | | | |  | |
| Partly Cloudy | Chance of T-Storm | Chance of T-Storm | Clearing | Mostly Clear | Partly Cloudy | Partly Cloudy | Partly Cloudy | Partly Cloudy | Partly Cloudy | Chance of Showers | Partly Cloudy |
| Lo: 59°FLo: 15°C | Hi: 80°FHi: 27°C | Lo: 65°FLo: 18°C | Hi: 79°FHi: 26°C | Lo: 60°FLo: 16°C | Hi: 75°FHi: 24°C | Lo: 59°FLo: 15°C | Hi: 75°FHi: 24°C | Lo: 59°FLo: 15°C | Hi: 79°FHi: 26°C | Lo: 65°FLo: 18°C | Hi: 80°FHi: 27°C |
| POP: 50% | POP: 50% | POP: 30% |
POP = Probability of Precipitation.
Weather Outlook Updated: 705 PM CDT Thu Aug 20 2026 
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Orchard Brook Park Forecast Discussion
Issued: 626 PM CDT Thu Aug 20 2026
Key Messages
- Showers and thunderstorms chances return Friday afternoon and evening, some may be severe, especially west of the Fox Valley in Illinois.
- Dangerous swim conditions expected at Porter County Lake Michigan beaches Saturday, then all Illinois and Indiana Lake Michigan beaches late Saturday night and Sunday.
Discussion
... Issued at 211 PM CDT Thu Aug 20 2026
Some much deserved sunshine and gorgeous summer weather today with comfortable humidity and mild temper...