Severe Weather and Heavy Rainfall from the Midwest to the Ohio Valley; Mid-Summer Heat Continues

Severe thunderstorm and heavy rainfall threats will persist from the Midwest to Lower Great Lakes through Monday, shifting into the Ohio Valley and Central Appalachians Monday evening into Tuesday. Mid-summer heat will continue across much of the CONUS this week, with record highs possible well into the 100s across the south-central High Plains. Read More >

Last Update: 1039 PM CDT Sun Aug 9 2026

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Chicago, IL Local Forecast Office

7NM NNW Gary IN

Marine Zone Forecast

Rest Of Tonight
South winds 10 to 20 kt becoming southwest 10 to 15 kt late. Showers and thunderstorms. Some thunderstorms may be severe with damaging winds and large hail. Waves 1 to 2 ft.
Monday
Southwest winds around 10 kt becoming northeast by midday. Chance of showers and thunderstorms in the afternoon. waves 1 to 2 ft.
Monday Night
Northeast winds around 10 kt becoming southeast overnight. Showers and thunderstorms likely. Waves around 1 ft.
Tuesday
South winds around 10 kt becoming southeast. Showers and thunderstorms likely in the morning, then showers likely and a chance of thunderstorms in the afternoon. Waves around 1 ft.



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1039 PM CDT Sun Aug 9 2026
 
 

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