Last Update: 242 PM CST Sat Feb 21 2026

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Chicago, IL Local Forecast Office

8NM ESE Chicago IL

Marine Zone Forecast

Tonight
Northwest winds 10 to 20 kt increasing to 20 to 25 kt. Chance of snow. Waves 1 to 3 ft building to 3 to 5 ft.
Sunday
Northwest winds 20 to 25 kt increasing to 30 kt. Chance of snow in the morning, then slight chance of snow in the afternoon. Waves 4 to 7 ft occasionally to 9 ft.
Sunday Night
Northwest winds to 30 kt. Occasional 35 kt gale gusts possible. Slight chance of snow. Freezing spray overnight. waves 6 to 9 ft occasionally to 12 ft building to 8 to 11 ft occasionally to 14 ft.
Monday
Northwest winds to 30 kt becoming north and diminishing to 15 to 25 kt. Freezing spray in the morning. Slight chance of snow in the morning. Waves 8 to 11 ft occasionally to 14 ft.



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242 PM CST Sat Feb 21 2026
 
 

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