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Chicago, IL Local Forecast Office

8NM ESE Chicago IL

Marine Zone Forecast

Rest Of Today

Southwest winds 10 to 15 kt becoming south to 30 kt this afternoon. Thunderstorms likely. Some thunderstorms may be severe. Waves 1 to 2 ft building to 3 to 5 ft, largest offshore.

Tonight

Southwest winds to 30 kt becoming west and diminishing to 15 to 20 kt. Showers and thunderstorms ending by midnight. some thunderstorms may be severe. Waves 3 to 5 ft subsiding to 1 to 3 ft.

Friday

West winds 10 to 20 kt. Sunny. Waves 1 to 2 ft.

Friday Night

West winds 10 to 15 kt becoming southwest overnight. Clear. Waves 1 to 2 ft.