| NWS Forecast for: Calumet Harbor IL to Gary IN (LMZ743) Issued by: National Weather Service Chicago, IL Last Update: 255 PM CDT Fri Apr 10 2026 | |
| Tonight: North winds around 10 kt becoming east late. Partly cloudy. Waves 1 to 3 ft. Saturday: East winds around 10 kt becoming northeast. Mostly sunny in the morning, then becoming mostly cloudy. Waves 1 to 2 ft. Saturday Night: Southeast winds 10 to 15 kt becoming south 15 to 20 kt overnight. Slight chance of showers. Waves 1 to 3 ft. Sunday: South winds 15 to 25 kt becoming southwest to 30 kt. Slight chance of showers and thunderstorms in the afternoon. Waves 1 to 3 ft building to 2 to 4 ft. | |
| Zone Forecast: Calumet Harbor IL to Gary IN (LMZ743) | |
Visit your local NWS office at: https://www.weather.gov/lot |