Last Update: 946 PM CDT Thu Oct 1 2026

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Chicago, IL Local Forecast Office

8NM ESE Chicago IL

Marine Zone Forecast

Rest Of Tonight
North winds 10 to 20 kt increasing to 15 to 25 kt after midnight. Showers late in the evening, then chance of showers after midnight. Waves 2 to 4 ft building to 3 to 6 ft occasionally to 8 ft late.
Friday
North winds 15 to 25 kt. Partly cloudy in the morning then clearing. Waves 4 to 7 ft occasionally to 9 ft.
Friday Night
Northeast winds 10 to 20 kt becoming east 10 to 15 kt overnight. Clear. Waves 3 to 6 ft occasionally to 8 ft subsiding to 2 to 4 ft late.
Saturday
East winds 10 to 15 kt becoming southeast. Sunny. Waves 2 to 4 ft subsiding to 1 to 3 ft.



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946 PM CDT Thu Oct 1 2026
 
 

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