LMZ740>742-280315-
Winthrop Harbor to Wilmette Harbor IL-
Wilmette Harbor to Northerly Island IL-
Northerly Island to Calumet Harbor IL-
251 PM CDT Thu Aug 27 2026
LATE THIS AFTERNOON
Northeast winds around 10 kt. Partly
cloudy. Waves 1 to 3 ft.
TONIGHT
East winds 5 to 10 kt. Mostly clear. Waves 1 to 2 ft.
FRIDAY
Southeast winds 5 to 10 kt increasing to 10 to 15 kt.
Mostly sunny. Waves 1 to 2 ft.
FRIDAY NIGHT
South winds 10 to 15 kt becoming southwest
overnight. Partly cloudy. Waves 1 to 2 ft.
SATURDAY
Southwest winds 10 to 15 kt becoming south. Partly
cloudy in the morning, then becoming mostly cloudy. Waves 1 to
2 ft.
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