Hazardous marine condition(s):
Hazardous Weather Outlook
Small Craft Advisory
LMZ740>742-282115-
Winthrop Harbor to Wilmette Harbor IL-
Wilmette Harbor to Northerly Island IL-
Northerly Island to Calumet Harbor IL-
229 AM CDT Tue Jul 28 2026
SMALL CRAFT ADVISORY IN EFFECT THROUGH WEDNESDAY MORNING
EARLY THIS MORNING
North winds 10 to 20 kt increasing to 15
to 25 kt. Mostly cloudy. Waves 2 to 4 ft building to 4 to 7 ft
occasionally to 9 ft.
TODAY
North winds 15 to 25 kt increasing to 30 kt. Mostly
cloudy in the morning, then becoming partly cloudy. Waves 5 to
8 ft occasionally to 10 ft.
TONIGHT
North winds to 30 kt gradually diminishing to 10 to
15 kt by morning. Partly cloudy. Waves 6 to 9 ft occasionally to
12 ft subsiding to 3 to 5 ft late.
WEDNESDAY
North winds 10 to 15 kt. Sunny. Waves 3 to 5 ft
subsiding to 2 to 4 ft.
WEDNESDAY NIGHT
North winds around 10 kt becoming northwest
overnight. Mostly clear. Waves 1 to 3 ft.
$$