| NWS Forecast for: Wilmette Harbor to Northerly Island IL (LMZ741) Issued by: National Weather Service Chicago, IL Last Update: 1011 AM CDT Wed Jun 17 2026 |  |
Rest Of Today: South winds 10 to 20 kt becoming southeast and increasing to 30 kt. Occasional gales force gusts to 35 kt possible. Showers and slight chance of thunderstorms late in the morning, then showers and thunderstorms in the afternoon. Some thunderstorms may be severe in the afternoon. Waves 1 to 2 ft building to 4 to 7 ft occasionally to 9 ft. Tonight: Southwest winds 20 to 25 kt becoming west. Chance of showers and thunderstorms in the evening. Some thunderstorms may be severe. Waves 4 to 7 ft occasionally to 9 ft subsiding to 1 to 3 ft. Thursday: West winds 20 to 25 kt becoming northwest and diminishing to 10 to 15 kt in the morning. Mostly cloudy in the morning then clearing. Waves 2 to 4 ft subsiding to 1 to 3 ft. Thursday Night: West winds 10 to 15 kt. Mostly clear. Waves 1 to 2 ft. | |
| Zone Forecast: Wilmette Harbor to Northerly Island IL (LMZ741) | |
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