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Chicago, IL Local Forecast Office

8NM ESE Chicago IL

Marine Zone Forecast

Tonight

East winds 10 to 15 kt becoming southeast and increasing to 15 to 25 kt. Slight chance of rain and snow showers after midnight. Waves 2 to 4 ft building to 3 to 5 ft.

Wednesday

South winds 20 to 25 kt increasing to 30 kt with occasional gales to 35 kt. Slight chance of showers in the morning. Waves 3 to 6 ft occasionally to 8 ft.

Wednesday Night

South winds 20 to 25 kt becoming southwest 10 to 20 kt late. Chance of showers in the evening, then showers likely and slight chance of thunderstorms overnight. Waves 3 to 6 ft occasionally to 8 ft subsiding to 3 to 5 ft.

Thursday

West winds 10 to 20 kt becoming southwest and diminishing to around 10 kt. Slight chance of showers. Waves 2 to 4 ft subsiding to 1 to 3 ft early.