LMZ740>742-202115-
Winthrop Harbor to Wilmette Harbor IL-
Wilmette Harbor to Northerly Island IL-
Northerly Island to Calumet Harbor IL-
845 AM CDT Fri Mar 20 2026
REST OF TODAY
Southwest winds 10 to 20 kt becoming northeast
by mid afternoon. Mostly cloudy. Waves around 1 ft building to 1
to 3 ft.
TONIGHT
Northeast winds 10 to 15 kt becoming east late. Mostly
cloudy. Waves 1 to 3 ft.
SATURDAY
Southeast winds 10 to 15 kt becoming south in the
afternoon. Mostly cloudy in the morning, then becoming partly
cloudy. Waves 1 to 2 ft.
SATURDAY NIGHT
Southwest winds 10 to 15 kt. Partly cloudy.
Waves 1 to 2 ft.
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