LMZ740>742-260330-
Winthrop Harbor to Wilmette Harbor IL-
Wilmette Harbor to Northerly Island IL-
Northerly Island to Calumet Harbor IL-
303 PM CDT Sat Jul 25 2026
TONIGHT
Southwest winds 10 to 15 kt. Mostly cloudy. Waves 1 to
3 ft.
SUNDAY
Southwest winds 10 to 15 kt becoming southeast in the
afternoon. Mostly cloudy in the morning, then becoming partly
cloudy. Waves 1 to 2 ft.
SUNDAY NIGHT
South winds 10 to 15 kt. Chance of showers and
thunderstorms. Waves 1 to 2 ft.
MONDAY
Southwest winds 10 to 15 kt increasing to 15 to 20 kt
in the afternoon. Chance of showers and thunderstorms in the
morning, then showers likely and a chance of thunderstorms in the
afternoon. Waves 1 to 2 ft.
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