Tropical Moisture Will Bring Heavy to Excessive Rainfall with Possible Flooding This Week

Tropical moisture will surge over the southwest into the central U.S. this week with several days of heavy to excessive rainfall which may bring limited to considerable flooding. Isolated severe thunderstorm gusts and a couple of tornadoes will be possible from southeast New Mexico into west Texas. Read More >

Last Update: 356 AM CDT Tue Sep 29 2026

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Chicago, IL Local Forecast Office

8NM ESE Chicago IL

Marine Zone Forecast

Today
Variable winds under 5 kt becoming south 5 to 10 kt mid morning then becoming southeast 10 to 15 kt in the afternoon. patchy fog early in the morning. Mostly sunny then becoming partly cloudy. Waves 1 ft or less building to 1 to 2 ft.
Tonight
South winds 10 to 15 kt. Slight chance of showers overnight. Waves 1 to 2 ft.
Wednesday
Southwest winds 10 to 15 kt becoming south. Showers likely. Waves 1 to 3 ft.
Wednesday Night
South winds 10 to 15 kt. Showers likely. Waves 1 to 3 ft.



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356 AM CDT Tue Sep 29 2026
 
 

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