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: 906 AM CST Fri Dec 26 2025




Rest Of Today: Southwest winds 10 to 15 kt becoming northwest by early afternoon. Areas of dense fog and intermittent drizzle late in the morning. Waves 1 to 3 ft.

Tonight: Northwest winds 10 to 15 kt becoming light and variable. Cloudy. Waves 2 to 4 ft subsiding to 1 ft or less.

Saturday: Southeast winds 5 to 10 kt increasing to 15 to 20 kt. Cloudy. Waves building to 1 to 3 ft.

Saturday Night: Southeast winds 15 to 20 kt becoming south. chance of showers. Waves 2 to 4 ft.







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

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