Northerly Island - Calumet Harbor
LMZ740>742-120315- Winthrop Harbor to Wilmette Harbor IL- Wilmette Harbor to Northerly Island IL- Northerly Island to Calumet Harbor IL- 514 PM CDT Tue Aug 11 2026
TONIGHT
South winds around 10 kt. Slight chance of showers and thunderstorms. Waves 1 to 3 ft subsiding to 1 ft or less.
WEDNESDAY
South winds 5 to 10 kt becoming southeast. Chance of showers and slight chance of thunderstorms. Waves 1 ft or less.
WEDNESDAY NIGHT
East winds around 10 kt becoming around 5 kt. Slight chance of showers in the evening, then chance of showers overnight. Waves around 1 ft.
THURSDAY
East winds around 10 kt becoming northeast in the afternoon. Showers likely in the morning, then showers likely and a chance of thunderstorms in the afternoon. Waves 1 to 2 ft. $$
TONIGHT
South winds around 10 kt. Slight chance of showers and thunderstorms. Waves 1 to 3 ft subsiding to 1 ft or less.
WEDNESDAY
South winds 5 to 10 kt becoming southeast. Chance of showers and slight chance of thunderstorms. Waves 1 ft or less.
WEDNESDAY NIGHT
East winds around 10 kt becoming around 5 kt. Slight chance of showers in the evening, then chance of showers overnight. Waves around 1 ft.
THURSDAY
East winds around 10 kt becoming northeast in the afternoon. Showers likely in the morning, then showers likely and a chance of thunderstorms in the afternoon. Waves 1 to 2 ft. $$
