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Rain Showers and Gusty Winds Coming to the Mid-Atlantic; Remaining Unseasonably Warm in the Central U.S.

Low pressure will track slowly northwestward into the Mid-Atlantic region through midweek bringing a risk for excessive rainfall, gusty winds, shallow coastal flooding, rip currents, and large surf. Unseasonably warm to hot temperatures persist in the mid to upper Mississippi Valley and into the Great Lakes and Northeast U.S. through Thursday. Read More >

Coastal Waters Forecast for Winthrop Harbor to Wilmette Harbor IL (LMZ740) (Text-Only)
NWS Forecast for: Winthrop Harbor to Wilmette Harbor IL (LMZ740)
Issued by: National Weather Service Chicago, IL
Last Update: 959 AM CDT Mon Sep 15 2025		Print

Rest Of Today: Southeast winds 10 to 15 kt becoming northeast this afternoon. Sunny. Waves 1 to 3 ft.

Tonight: Northeast winds 10 to 15 kt becoming southeast 5 to 10 kt overnight. Mostly clear. Waves 1 to 2 ft.

Tuesday: Southeast winds 5 to 10 kt becoming northeast in the afternoon. Mostly sunny. Waves 1 to 2 ft.

Tuesday Night: Northeast winds 5 to 10 kt. Mostly clear. Waves around 1 ft.






Zone Forecast: Winthrop Harbor to Wilmette Harbor IL (LMZ740)

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