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Chicago, IL Local Forecast Office

8NM ESE Chicago IL

Marine Zone Forecast

Today

South winds to 30 kt easing to 20 to 25 kt early this morning, then becoming southwest by midday. Showers this morning, then a slight chance of showers in the afternoon. Waves 3 to 5 ft subsiding to 2 to 4 ft.

Tonight

Southwest winds 20 to 25 kt. Mostly cloudy. Waves 2 to 4 ft.

Thursday

Southwest winds 20 to 25 kt becoming west 15 to 20 kt in the afternoon. Slight chance of showers in the morning, then chance of showers in the afternoon. Waves 2 to 4 ft.

Thursday Night

Northwest winds 15 to 25 kt becoming north at 20 to 25 kt. Showers likely in the evening, then chance of showers overnight. Waves 2 to 4 ft occasionally to 8 ft building to 6 to 9 ft occasionally to 12 ft.