Chicago Weather

Marine Data

Below you'll find the latest marine forecast for our area. This forecast updates daily.

Wilmette Harbor To Northerly Island-

Northerly Island To Calumet Harbor-Calumet Harbor To Gary-

Forecast as of 9:16 PM CST on February 24, 2017

Small Craft Advisory in effect through Saturday evening

Rest Of Tonight

Northwest winds 10 to 20 kt increasing to 30 kt overnight. Occasional drizzle changing to snow. Waves 3 to 5 ft occasionally to 7 ft.


Northwest winds to 30 kt. Chance of snow showers in the morning. Waves 3 to 6 ft occasionally to 8 ft.

Saturday Night

West winds 15 to 25 kt becoming southwest 10 to 20 kt after midnight. Mostly cloudy. Waves 3 to 5 ft occasionally to 7 ft subsiding to 2 to 4 ft after midnight.


Southwest winds to 30 kt. Partly sunny. Waves 2 to 4 ft.


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