Northerly Island - Calumet Harbor
LMZ740>742-012115- Winthrop Harbor to Wilmette Harbor IL- Wilmette Harbor to Northerly Island IL- Northerly Island to Calumet Harbor IL- 1022 AM CDT Fri May 1 2026
REST OF TODAY
North winds 10 to 15 kt becoming northeast this afternoon. Slight chance of showers in the afternoon. Waves 1 to 3 ft.
TONIGHT
Northeast winds 5 to 10 kt becoming north overnight. Partly cloudy. Waves 1 to 3 ft.
SATURDAY
North winds around 10 kt becoming east in the afternoon. Partly cloudy. Waves 1 to 2 ft.
SATURDAY NIGHT
South winds 10 to 15 kt becoming southwest overnight. Partly cloudy. Waves 1 to 2 ft. $$
REST OF TODAY
North winds 10 to 15 kt becoming northeast this afternoon. Slight chance of showers in the afternoon. Waves 1 to 3 ft.
TONIGHT
Northeast winds 5 to 10 kt becoming north overnight. Partly cloudy. Waves 1 to 3 ft.
SATURDAY
North winds around 10 kt becoming east in the afternoon. Partly cloudy. Waves 1 to 2 ft.
SATURDAY NIGHT
South winds 10 to 15 kt becoming southwest overnight. Partly cloudy. Waves 1 to 2 ft. $$

