Last Update: 400 AM CDT Mon Aug 17 2026

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Chicago, IL Local Forecast Office

8NM ESE Chicago IL

Marine Zone Forecast

Today
Northwest winds 10 to 15 kt becoming northeast 15 to 20 kt early this morning, then becoming east around 10 kt mid afternoon. Slight chance of showers. Waves 2 to 4 ft subsiding to 1 to 3 ft.
Tonight
Southeast winds 10 to 15 kt becoming southwest overnight. Mostly clear. Waves 1 to 2 ft.
Tuesday
Southwest winds 10 to 15 kt. Chance of showers and thunderstorms in the afternoon. Waves 1 to 2 ft.
Tuesday Night
West winds 10 to 15 kt becoming northwest overnight. Showers likely and a chance of thunderstorms. Waves 1 to 2 ft.



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400 AM CDT Mon Aug 17 2026
 
 

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