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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 3:12 PM CDT on April 23, 2014

Small Craft Advisory in effect from Thursday morning through Thursday evening


Northeast winds 10 to 15 kt becoming east from late evening on. Scattered showers from mid evening on. Waves 2 to 4 ft subsiding to 1 to 3 ft after midnight.


Southeast winds 15 to 25 kt increasing to 30 kt from late morning on. Chance of showers and thunderstorms in the afternoon. Waves 2 to 4 ft building to 3 to 6 ft occasionally to 8 ft in the afternoon.

Thursday Night

South winds 15 to 25 kt becoming west 10 to 20 late. Showers and a chance of thunderstorms in the evening...then chance of showers after midnight. Waves 3 to 6 ft occasionally to 8 ft subsiding to 2 to 4 ft.


West winds 20 to 25 kt. Sunny in the morning then becoming partly sunny. Waves 1 to 3 ft.