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: 242 PM CDT Mon Jul 14 2025


Tonight: Northeast winds around 10 kt becoming southeast 5 to 10 kt late. Mostly clear. Waves around 1 ft.

Tuesday: South winds 5 to 10 kt becoming east in the afternoon. Mostly sunny. Waves around 1 ft.

Tuesday Night: Southeast winds 5 to 10 kt becoming south. Slight chance of showers overnight. Waves around 1 ft.

Wednesday: South winds 5 to 10 kt becoming southwest. Chance of showers and thunderstorms, mainly in the afternoon. Waves around 1 ft.







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

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