Chicago Weather

Marine Data

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

Calumet Harbor To Gary-

Forecast as of 9:16 PM CDT on October 22, 2017

Small Craft Advisory in effect until 4 am CDT Monday

Rest Of Tonight

North winds 15 to 20 kt. Rain. Waves 3 to 6 ft occasionally 8 ft subsiding to 2 to 4 ft toward daybreak.


North winds 10 to 15 kt becoming northwest in the afternoon. Rain likely in the morning, then slight chance of rain in the afternoon. Waves 2 to 4 ft subsiding to 1 to 3 ft in the afternoon.

Monday Night

West winds 15 to 25 kt. Chance of showers. Waves 2 to 4 ft.


West winds to 30 kt. Rain showers likely. Waves 2 to 4 ft. A Small Craft Advisory will likely be needed.


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