National Weather Service Marine Forecast FZUS53 KLOT

FZUS53 KLOT 100902
NSHLOT

Nearshore Marine Forecast
National Weather Service Chicago/Romeoville IL
402 AM CDT Fri Jul 10 2026

For waters within five nautical miles of shore on Lake Michigan

Waves are provided as a range of significant wave heights, which is the average of the highest 1/3 of the waves, along with the average height of the highest 10 percent of the waves which will occasionally be encountered.

LMZ740>742-101800
Winthrop Harbor to Wilmette Harbor IL
Wilmette Harbor to Northerly Island IL
Northerly Island to Calumet Harbor IL
402 AM CDT Fri Jul 10 2026

TODAY
North winds 5 to 10 kt increasing to 10 to 15 kt in the afternoon. Patchy fog in the morning. Waves 1 to 2 ft.

TONIGHT
North winds 10 to 15 kt. Mostly cloudy. Waves 1 to 3 ft.

SATURDAY
Northeast winds 10 to 15 kt. Partly cloudy. Waves 1 to 2 ft.

SATURDAY NIGHT
Northeast winds 10 to 15 kt in the evening. Partly cloudy in the evening, then becoming mostly clear. Waves 1 to 2 ft.

LMZ743>745-101800
Calumet Harbor IL to Gary IN-Gary to Burns Harbor IN
Burns Harbor to Michigan City IN
402 AM CDT Fri Jul 10 2026

TODAY
Northeast winds 5 to 10 kt becoming north and increasing to 10 to 15 kt in the late morning. Patchy fog in the morning. Waves 1 to 2 ft.

TONIGHT
North winds 10 to 15 kt. Mostly cloudy. Waves 1 to 3 ft.

SATURDAY
Northeast winds 10 to 15 kt. Partly cloudy. Waves 1 to 3 ft.

SATURDAY NIGHT
Northeast winds 10 to 15 kt becoming east overnight. Partly cloudy in the evening, then becoming mostly clear. Waves 1 to 2 ft.

DK