Northerly Island - Calumet Harbor
LMZ740>742-111545- Winthrop Harbor to Wilmette Harbor IL- Wilmette Harbor to Northerly Island IL- Northerly Island to Calumet Harbor IL- 358 AM CDT Sat Apr 11 2026
TODAY
East winds around 5 kt increasing to 10 to 15 kt in the late morning. Partly cloudy in the morning, then becoming mostly cloudy. Waves 1 to 2 ft.
TONIGHT
Southeast winds 10 to 15 kt increasing to 15 to 20 kt and becoming south overnight. Chance of showers. Waves 1 to 3 ft building to 2 to 4 ft.
SUNDAY
South winds 15 to 25 kt becoming southwest to 30 kt. Scattered showers. A slight chance of thunderstorms in the afternoon. Waves 3 to 5 ft. A small craft advisory will likely be needed.
SUNDAY NIGHT
Southwest winds to 30 kt diminishing to 15 to 25 kt late. Showers and a chance of thunderstorms. Waves 2 to 4 ft. $$
TODAY
East winds around 5 kt increasing to 10 to 15 kt in the late morning. Partly cloudy in the morning, then becoming mostly cloudy. Waves 1 to 2 ft.
TONIGHT
Southeast winds 10 to 15 kt increasing to 15 to 20 kt and becoming south overnight. Chance of showers. Waves 1 to 3 ft building to 2 to 4 ft.
SUNDAY
South winds 15 to 25 kt becoming southwest to 30 kt. Scattered showers. A slight chance of thunderstorms in the afternoon. Waves 3 to 5 ft. A small craft advisory will likely be needed.
SUNDAY NIGHT
Southwest winds to 30 kt diminishing to 15 to 25 kt late. Showers and a chance of thunderstorms. Waves 2 to 4 ft. $$
