Severe Thunderstorms; Excessive Rainfall; Dangerous Heat; Air Quality Concerns and the Tropics

Wildfire smoke will push into the Midwest, worsening air quality. A frontal system brings severe storms from the Northern Plains to the Mid‑Atlantic the next few days. Heavy Gulf Coast rain is possible as Tropical Depression Two has formed, while monsoonal storms persist in the Southwest with heavy rainfall. Hazardous heat expands from the Plains into the Lower Mississippi Valley. Read More >

Last Update: 254 PM CDT Sun Jul 19 2026

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Chicago, IL Local Forecast Office

20NM NNE Gary IN

Marine Zone Forecast

Tonight
North winds 10 to 20 kt veering to southeast 5 to 10 kt late this evening, then becoming south after midnight becoming 10 to 20 kt late. Patchy smoke. Waves 1 to 2 ft.
Monday
Southwest winds 10 to 20 kt becoming south winds to 30 kt. Patchy smoke. Waves 1 to 3 ft building to 5 to 8 ft occasionally to 10 ft.
Monday Night
Southwest winds to 30 kt. Chance of showers and thunderstorms. Waves 5 to 8 ft occasionally to 10 ft.
Tuesday
West winds to 30 kt becoming northwest. Waves 5 to 8 ft occasionally to 10 ft.
Tuesday Night
North gales to 35 kt. Waves 8 to 12 ft occasionally to 16 ft.
Wednesday
North gales to 35 kt diminishing to 30 kt. Waves 8 to 12 ft occasionally to 16 ft subsiding to 8 to 11 ft occasionally to 14 ft.
Wednesday Night
Northeast winds to 30 kt becoming northwest 5 to 10 kt. Waves 5 to 8 ft occasionally to 10 ft subsiding to 3 to 5 ft.
Thursday
West winds 10 to 15 kt becoming southwest 10 to 20 kt. Waves 1 to 3 ft.
Friday
West winds 10 to 15 kt becoming south 10 to 20 kt. Waves 1 to 3 ft.



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254 PM CDT Sun Jul 19 2026
 
 

RADAR & SATELLITE IMAGES

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