Last Update: 247 PM CST Sat Nov 15 2025

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Chicago, IL Local Forecast Office

8NM ESE Chicago IL

Marine Zone Forecast

Tonight
Northwest winds 20 to 25 kt increasing to 30 kt with occasional gales to 35 kt possible. Mostly clear. Waves 2 to 4 ft building to 4 to 7 ft occasionally to 9 ft.
Sunday
Northwest winds 20 to 25 kt diminishing to 15 to 20 kt. sunny. Waves 4 to 6 ft occasionally to 8 ft subsiding to 2 to 4 ft.
Sunday Night
Northwest winds 10 to 20 kt. Clear. Waves 2 to 4 ft.
Monday
Northwest winds around 10 kt becoming north in the afternoon. Mostly sunny in the morning, then becoming partly cloudy. Waves 2 to 4 ft subsiding to 1 to 2 ft.



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247 PM CST Sat Nov 15 2025
 
 

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