Last Update: 347 PM CDT Thu Aug 28 2025

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Chicago, IL Local Forecast Office

7NM NNW Gary IN

Marine Zone Forecast

Tonight
North 15 to 20 kt increasing to 20 to 25 kt this evening and then diminishing to 10 to 20 kt towards daybreak and becoming northeast. Partly cloudy this evening then becoming mostly clear. Waves building to 5 to 8 ft occasionally to 10 ft, then subsiding to 4 to 6 ft occasionally to 8 ft late.
Friday
Northeast winds 10 to 15 kt becoming north. Mostly sunny in the morning, then becoming partly cloudy. Waves 3 to 6 ft occasionally to 8 ft subsiding to 2 to 4 ft in the early afternoon and then to 1 to 3 ft late.
Friday Night
Northeast winds 5 to 10 kt becoming east overnight. Mostly clear. Waves 1 to 3 ft.
Saturday
Southeast winds 5 to 10 kt becoming northeast in the afternoon. Mostly sunny. Waves around 1 ft.



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347 PM CDT Thu Aug 28 2025
 
 

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