Last Update: 251 PM CST Sun Jan 18 2026

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Chicago, IL Local Forecast Office

8NM ESE Chicago IL

Marine Zone Forecast

Late This Afternoon
Southwest winds 15 to 20 kt. Snow likely toward sunset. Waves 1 to 3 ft.
Tonight
Southwest winds 15 to 25 kt becoming northwest and increasing to 40 kt gales around midnight. Snow in the evening, then scattered snow showers after midnight. Freezing spray after midnight. Waves 1 to 3 ft building to 5 to 8 ft occasionally to 10 ft.
Monday
West gales to 40 kt diminishing to 30 kt by early afternoon. Freezing spray in the morning. Isolated snow showers in the morning. Waves 5 to 8 ft occasionally to 10 ft subsiding to 3 to 5 ft.
Monday Night
West winds to 30 kt diminishing to 15 to 20 kt. Mostly cloudy in the evening, then becoming partly cloudy. Waves 2 to 4 ft subsiding to 1 to 3 ft.
Tuesday
West winds 10 to 15 kt becoming southwest. Mostly sunny in the morning, then becoming partly cloudy. Waves 1 to 3 ft.

wave heights are for ice free areas.



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251 PM CST Sun Jan 18 2026
 
 

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