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: 233 PM CST Tue Nov 3 2026
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Late This Afternoon: South winds to 30 kt. Slight chance of showers. Waves 1 to 3 ft.

Tonight: South winds 20 to 25 kt. Showers likely, mainly after midnight. Waves 2 to 4 ft.

Wednesday: South winds 20 to 25 kt becoming southwest late. Showers likely in the morning, then slight chance of showers in the afternoon. Waves 2 to 4 ft.

Wednesday Night: Southwest winds 20 to 25 kt diminishing to 10 to 20 kt. Mostly cloudy. Waves 2 to 4 ft.

Thursday: Southwest winds 15 to 25 kt. Slight chance of showers in the afternoon. Waves 2 to 4 ft.







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

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