| NWS Forecast for: Calumet Harbor IL to Gary IN (LMZ743) Issued by: National Weather Service Chicago, IL Last Update: 1230 PM CDT Thu May 7 2026 |  |
Rest Of Today: South winds 20 to 25 kt possibly becoming southwesterly for a time this afternoon and evening. Isolated showers. Waves 2 to 4 ft. Tonight: Southwest winds 10 to 15 kt. Partly cloudy. Waves 1 to 2 ft. Friday: South winds 10 to 15 kt becoming east in the afternoon. Slight chance of showers in the afternoon. Waves 1 ft or less building to 1 to 2 ft. Friday Night: Southeast winds 10 to 15 kt becoming southwest overnight. Partly cloudy. Waves 1 to 2 ft. | |
| Zone Forecast: Calumet Harbor IL to Gary IN (LMZ743) | |
Visit your local NWS office at: https://www.weather.gov/lot |