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Grant Park Weather Forecast
| TODAY | TONIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT |
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| Showers | Patchy Fog | Mostly Sunny | Partly Cloudy | Mostly Sunny | Partly Cloudy | Mostly Sunny | Partly Cloudy | Mostly Sunny | Partly Cloudy | Partly Sunny | Chance of Showers |
| Hi: 61°FHi: 16°C | Lo: 55°FLo: 13°C | Hi: 70°FHi: 21°C | Lo: 55°FLo: 13°C | Hi: 75°FHi: 24°C | Lo: 60°FLo: 16°C | Hi: 79°FHi: 26°C | Lo: 65°FLo: 18°C | Hi: 79°FHi: 26°C | Lo: 59°FLo: 15°C | Hi: 69°FHi: 21°C | Lo: 55°FLo: 13°C |
| POP: 90% | POP: 30% |
POP = Probability of Precipitation.
Weather Outlook Updated: 249 AM EDT Mon Sep 28 2026 
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Issued: 336 AM EDT Mon Sep 28 2026
Key Messages
1) Nor`easter weakening with additional rain today.
2) Minor coastal flooding impacts are expected during times of high tide through this afternoon, highest this morning. Locally moderate inundation possible this morning along the southern and eastern bays of Long Island and north shore of Long Island.
3) A warm up possible by the end of the week.
Discussion
... .KEY MESSAGE 1...
The occluded low pressure system remains just south of the CWA this morning and will continue to slowly track ...