Heat Across the Center of the Nation; Severe Thunderstorms Across the Great Lakes and Ohio Valley

Heat expands across the Desert Southwest, Plains, Mississippi Valley and Midwest into Monday. Fire weather concerns continue for portions of the Intermountain West. Active monsoonal moisture fuels thunderstorms over the Southwest with possible flash flooding. Tropical cyclone Fausto in the Pacific, should weaken as it approaches Hawaii; Dangerous surf, swells and rip currents are expected. Read More >

Coastal Waters Forecast for Calumet Harbor IL to Gary IN (LMZ743) (Text-Only)
NWS Forecast for: Calumet Harbor IL to Gary IN (LMZ743)
Issued by: National Weather Service Chicago, IL
Last Update: 936 AM CDT Sun Jul 26 2026




Rest Of Today: Southwest winds 5 to 10 kt becoming east in the afternoon. Mostly cloudy, then becoming partly cloudy. Waves 1 to 2 ft.

Tonight: South winds around 10 kt. Slight chance of showers and thunderstorms in the evening, then chance of showers and thunderstorms overnight. Waves around 1 ft.

Monday: Southwest winds 10 to 15 kt becoming south 15 to 20 kt. Chance of showers and thunderstorms. Waves 1 to 3 ft.

Monday Night: Southwest winds 10 to 20 kt shifting to north and increasing to 15 to 25 kt.. Chance of showers and thunderstorms in the evening. Waves 1 to 3 ft building to 3 to 5 ft.

winds and waves higher in and near thunderstorms.







Zone Forecast: Calumet Harbor IL to Gary IN (LMZ743)

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