Last Update: 906 AM CDT Tue Mar 18 2025

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Chicago, IL Local Forecast Office

8NM ESE Chicago IL

Marine Zone Forecast

Rest Of Today
South winds 10 to 15 kt becoming southeast 15 to 25 kt late. Mostly cloudy. Waves 1 to 3 ft.
Tonight
Southeast winds 10 to 20 kt becoming south late. Mostly cloudy. Waves 1 to 3 ft.
Wednesday
South winds 15 to 25 kt increasing to 30 kt. A few gale force gusts to 35 kt possible in the afternoon. Chance of showers in the morning, then showers likely and a chance of thunderstorms in the afternoon. Waves 2 to 4 ft building to 3 to 5 ft.
Wednesday Night
Southwest winds to 30 kt becoming northwest and increasing to 40 kt gales overnight. Rain and slight chance of thunderstorms in the evening, then rain and snow overnight. Waves 3 to 5 ft building to 7 to 10 ft occasionally to 13 ft.



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906 AM CDT Tue Mar 18 2025
 
 

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