LMZ740>742-190315-
Winthrop Harbor to Wilmette Harbor IL-
Wilmette Harbor to Northerly Island IL-
Northerly Island to Calumet Harbor IL-
257 PM CDT Fri Jul 18 2025
TONIGHT
East winds 5 to 10 kt becoming south late. Mostly
clear in the evening, then becoming mostly cloudy. Waves 1 to 3
ft.
SATURDAY
South winds 10 to 15 kt becoming southwest in the
afternoon. Showers likely and a chance of thunderstorms. Waves
1 to 2 ft.
SATURDAY NIGHT
Northwest winds 5 to 10 kt becoming north 10
to 15 kt overnight. Chance of showers and thunderstorms in the
evening, then slight chance of showers and thunderstorms
overnight. Waves 1 to 3 ft.
SUNDAY
Northeast winds 10 to 15 kt. Slight chance of showers
and thunderstorms in the morning. Waves 2 to 4 ft.
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