| NWS Forecast for: Winthrop Harbor to Wilmette Harbor IL (LMZ740) Issued by: National Weather Service Chicago, IL Last Update: 249 PM CST Mon Nov 9 2026 | |
| Tonight: Southwest winds 10 to 15 kt becoming northwest late. Partly cloudy in the evening then clearing. Waves 1 to 3 ft. Tuesday: Northwest winds around 10 kt becoming west late. Mostly sunny in the morning, then becoming partly cloudy. Waves 1 to 2 ft. Tuesday Night: West winds 5 to 10 kt becoming southwest. Mostly cloudy. Waves around 1 ft. Wednesday: Southeast winds 5 to 10 kt becoming northeast and increasing to 10 to 20 kt in the afternoon. Slight chance of rain in the morning, then chance of rain in the afternoon. Waves around 1 to 2 ft building to 2 to 4 ft late. | |
| Zone Forecast: Winthrop Harbor to Wilmette Harbor IL (LMZ740) | |
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