| NWS Forecast for: Wilmette Harbor to Northerly Island IL (LMZ741) Issued by: National Weather Service Chicago, IL Last Update: 546 AM CDT Wed Apr 22 2026 | |
Today: Southwest winds 10 to 20 kt becoming north through the morning, then diminishing to around 10 kt in the afternoon. Areas of fog developing through mid to late morning. Waves 1 to 3 ft. Tonight: Northeast winds around 10 kt becoming south overnight. Patchy fog. Waves 1 to 2 ft. Thursday: Southeast winds 10 to 15 kt increasing to 15 to 20 kt. Mostly cloudy in the morning, then becoming partly cloudy. waves 1 to 3 ft. Thursday Night: South winds 15 to 20 kt. Chance of showers and slight chance of thunderstorms overnight. Waves 2 to 4 ft. | |
| Zone Forecast: Wilmette Harbor to Northerly Island IL (LMZ741) | |
Visit your local NWS office at: https://www.weather.gov/lot |