Chicago Weather

Marine Data

Below 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 9:37 am CDT on March 26, 2017

Dense fog advisory in effect until 7 PM CDT this evening

Rest Of Today

Southeast winds 10 to 15 kt becoming south by mid afternoon. Areas of dense fog. Showers likely...mainly through early afternoon. Waves 3 to 5 ft occasionally to 7 ft subsiding to 1 to 3 ft.


Southwest winds 10 to 15 kt becoming west 5 to 10 kt after midnight. Slight chance of showers in the evening. Patchy fog. Waves 1 to 3 ft subsiding to around 1 ft after midnight.


Northeast winds 5 to 10 kt increasing to 10 to 15 kt early in the afternoon. Chance of rain. Waves around 1 ft building to 1 to 3 ft in the afternoon.

Monday Night

Northeast winds 15 to 20 kt becoming north overnight. Chance of rain. Waves 2 to 4 ft building to 3 to 5 ft occasionally to 7 ft after midnight.


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