| NWS Forecast for: Calumet Harbor IL to Gary IN (LMZ743) Issued by: National Weather Service Chicago, IL Last Update: 919 PM CDT Sun Apr 19 2026 | |
| Rest Of Tonight: Northeast winds around 10 kt. Partly cloudy late in the evening then clearing. Waves 1 to 3 ft. Monday: East winds 5 to 10 kt becoming northeast. Sunny. Waves 1 to 2 ft. Monday Night: Southeast winds 10 to 15 kt becoming south 15 to 20 kt overnight. Partly cloudy. Waves 1 to 3 ft. Tuesday: Southwest winds 15 to 20 kt. Partly cloudy. Waves 1 to 3 ft. | |
| Zone Forecast: Calumet Harbor IL to Gary IN (LMZ743) | |
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