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Chicago, IL Local Forecast Office

8NM ESE Chicago IL

Marine Zone Forecast

Early This Morning

Southwest winds 10 to 15 kt. Mostly cloudy. Waves around 1 ft.

Today

South winds 10 to 20 kt becoming southeast and increasing to 30 kt. Showers and slight chance of thunderstorms in the morning, then showers and thunderstorms in the afternoon. Some thunderstorms may be severe in the afternoon. Waves around 1 ft quickly building to 4 to 7 ft occasionally to 9 ft.

Tonight

Southwest winds 20 to 25 kt becoming west. Chance of showers and thunderstorms in the evening. Some thunderstorms may be severe. Waves 4 to 7 ft occasionally to 9 ft subsiding to 1 to 3 ft.

Thursday

West winds 20 to 25 kt becoming northwest and diminishing to 10 to 15 kt in the morning. Mostly cloudy in the morning then clearing. Waves 2 to 4 ft subsiding to 1 to 3 ft.

Thursday Night

West winds 10 to 15 kt. Mostly clear. Waves 1 to 2 ft.