| NWS Forecast for: Winthrop Harbor to Wilmette Harbor IL (LMZ740) Issued by: National Weather Service Chicago, IL Last Update: 248 PM CDT Thu Apr 9 2026 | |
Tonight: East winds 10 to 15 kt becoming northeast overnight. showers and slight chance of thunderstorms. Waves 1 to 3 ft. Friday: North winds 10 to 15 kt becoming northeast. Chance of showers in the morning. Waves 1 to 3 ft. Friday Night: Northeast winds around 10 kt. Partly cloudy in the evening then clearing. Waves 1 to 2 ft. Saturday: East winds around 10 kt. Partly cloudy in the morning, then becoming mostly cloudy. Waves 1 to 2 ft. | |
| Zone Forecast: Winthrop Harbor to Wilmette Harbor IL (LMZ740) | |
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