| NWS Forecast for: Winthrop Harbor to Wilmette Harbor IL (LMZ740) Issued by: National Weather Service Chicago, IL Last Update: 918 PM CST Mon Feb 9 2026 | |
Rest Of Tonight: South winds 15 to 25 kt becoming southwest 10 to 20 kt overnight. Mostly cloudy. Waves 2 to 4 ft. Tuesday: Northwest winds 20 to 25 kt. Mostly cloudy in the morning, then becoming partly cloudy. Waves 1 to 3 ft. Tuesday Night: Northwest winds 15 to 20 kt. Partly cloudy in the evening, then becoming mostly cloudy. Waves 2 to 4 ft. Wednesday: Northwest winds 15 to 20 kt diminishing to 10 to 15 kt. Mostly cloudy in the morning, then becoming partly cloudy. Waves 2 to 4 ft. wave heights are for ice free areas. | |
| Zone Forecast: Winthrop Harbor to Wilmette Harbor IL (LMZ740) | |
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