LMZ740>742-091615-
Winthrop Harbor to Wilmette Harbor IL-
Wilmette Harbor to Northerly Island IL-
Northerly Island to Calumet Harbor IL-
307 AM CST Mon Feb 9 2026
TODAY
Southeast winds around 15 kt. Mostly cloudy. Waves 2 to
4 ft subsiding to 1 to 3 ft.
TONIGHT
South winds 15 to 20 kt becoming southwest overnight.
Mostly cloudy. Waves 1 to 3 ft.
TUESDAY
Northwest winds 20 to 25 kt diminishing to 15 to
25 kt. Mostly cloudy. Waves 1 to 2 ft. A Small Craft Advisory may
be needed.
TUESDAY NIGHT
Northwest winds 10 to 20 kt. Partly cloudy.
Waves 1 to 3 ft.
Wave heights are for ice free areas.
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