Hazardous marine condition(s):
Hazardous Weather Outlook
LMZ740>742-110915-
Winthrop Harbor to Wilmette Harbor IL-
Wilmette Harbor to Northerly Island IL-
Northerly Island to Calumet Harbor IL-
1046 PM CDT Mon Aug 10 2026
REST OF TONIGHT
East winds around 5 kt becoming southeast
late. Chance of showers and thunderstorms after midnight. Waves
around 1 ft.
TUESDAY
Southeast winds around 10 kt becoming south. Showers
and thunderstorms. Some thunderstorms may be severe. Waves 1 to
2 ft.
TUESDAY NIGHT
East winds around 10 kt becoming southeast
overnight. Chance of showers and thunderstorms overnight. Waves
1 to 2 ft.
WEDNESDAY
East winds around 10 kt becoming northeast in the
afternoon. Chance of showers and thunderstorms. Waves around 1
ft.
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