NWS Marine Forecast


   LMZ740>742-202215-  Winthrop Harbor to Wilmette Harbor IL-  Wilmette Harbor to Northerly Island IL-  Northerly Island to Calumet Harbor IL-  1024 AM CST Thu Nov 20 2025    REST OF TODAY  Southwest winds around 10 kt. Patchy fog late in  the morning. Chance of drizzle late in the afternoon. Waves 1 to  2 ft.  TONIGHT  Southwest winds 10 to 15 kt becoming northwest  overnight. Chance of drizzle in the evening. Waves around 1 ft.  FRIDAY  Northwest winds 10 to 15 kt becoming north. Mostly  cloudy. Waves 1 to 2 ft.  FRIDAY NIGHT  North winds 10 to 15 kt becoming northeast.  Slight chance of rain in the evening. Waves 1 to 3 ft building to  2 to 4 ft.    $$