Marine DataBelow you'll find the latest marine forecast for our area. This forecast updates daily.
Winthrop Harbor To Wilmette Harbor-
Wilmette Harbor To Northerly Island-
Northerly Island To Calumet Harbor-
Forecast as of 8:45 am CDT on April 23, 2018
North winds 10 to 15 kt becoming northeast and increasing to 10 to 20 kt. Mostly cloudy. Waves 1 to 3 ft building to 2 to 4 ft.
Northeast winds 10 to 15 kt. Slight chance of showers. Waves 1 to 3 ft.
North winds around 10 kt. Chance of showers. Waves 1 to 3 ft.
North winds 10 to 15 kt increasing to 30 kt. Mostly cloudy. Waves 1 to 3 ft building to 4 to 7 ft occasionally to 9 ft after midnight. A Small Craft Advisory will likely be needed.