| NWS Forecast for: Wilmette Harbor to Northerly Island IL (LMZ741) Issued by: National Weather Service Chicago, IL Last Update: 853 AM CDT Sun Aug 16 2026 |  |
Rest Of Today: West winds 10 to 15 kt becoming northwest late. chance of showers and thunderstorms this afternoon. Waves 1 to 2 ft. Tonight: Northwest winds 15 to 20 kt becoming northeast overnight. Mostly cloudy in the evening, then becoming partly cloudy. Waves 1 to 2 ft building to 2 to 4 ft. Monday: North winds 10 to 15 kt becoming northeast in the afternoon. Partly cloudy. Waves 2 to 4 ft subsiding to 1 to 3 ft. Monday Night: South winds around 5 kt becoming southwest overnight. Mostly clear. Waves 1 to 2 ft. | |
| Zone Forecast: Wilmette Harbor to Northerly Island IL (LMZ741) | |
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