NWS Marine Forecast


   LMZ740>742-142115-  Winthrop Harbor to Wilmette Harbor IL-  Wilmette Harbor to Northerly Island IL-  Northerly Island to Calumet Harbor IL-  1013 AM CDT Thu May 14 2026    REST OF TODAY  North winds around 5 kt becoming southeast late.  Sunny. Waves 1 to 2 ft.  TONIGHT  Southeast winds 10 to 15 kt becoming south overnight.  Mostly clear in the evening, then becoming mostly cloudy. Waves  1 to 2 ft.  FRIDAY  South winds 15 to 25 kt. Mostly cloudy in the morning  then clearing. Waves 2 to 4 ft.  FRIDAY NIGHT  South winds 15 to 20 kt diminishing to 10 to  15 kt. Chance of showers and slight chance of thunderstorms  overnight. Waves 2 to 4 ft subsiding to 1 to 3 ft.    $$