Hazardous Weather Conditions

Last Update: 338 PM CDT Mon Aug 18 2025

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Chicago, IL Local Forecast Office

8NM NE Gary IN

Marine Zone Forecast

Tonight
Southeast winds 5 to 10 kt becoming south 10 to 15 kt late. Showers and thunderstorms likely in the evening, then chance of showers and thunderstorms after midnight. Waves around 1 ft.
Tuesday
Southwest winds 10 to 15 kt becoming northwest in the afternoon. Chance of showers and thunderstorms in the morning, then slight chance of showers and thunderstorms in the afternoon. Waves 1 to 2 ft.
Tuesday Night
North winds 10 to 15 kt. Mostly cloudy. Waves 2 to 4 ft building to 3 to 5 ft.
Wednesday
North winds 15 to 20 kt increasing to 20 to 25 kt. Partly cloudy in the morning then clearing. Waves 3 to 5 ft. A small craft advisory will likely be needed.



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338 PM CDT Mon Aug 18 2025
 
 

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