| NWS Forecast for: Calumet Harbor IL to Gary IN (LMZ743) Issued by: National Weather Service Chicago, IL Last Update: 256 PM CDT Mon Jul 6 2026 |  |
| Tonight: North winds 10 to 20 kt diminishing to 5 to 10 kt overnight. Mostly clear. Waves 2 to 4 ft subsiding to 1 to 3 ft. Tuesday: North winds 5 to 10 kt becoming northeast. Mostly sunny. Waves 1 to 3 ft. Tuesday Night: Northeast winds around 10 kt becoming south less than 10 kt overnight. Mostly clear. Waves around 1 ft. Wednesday: Southwest winds less than 10 kt becoming south around 10 kt. Mostly sunny. Waves around 1 ft. | |
| Zone Forecast: Calumet Harbor IL to Gary IN (LMZ743) | |
Visit your local NWS office at: https://www.weather.gov/lot |