| NWS Forecast for: Wilmette Harbor to Northerly Island IL (LMZ741) Issued by: National Weather Service Chicago, IL Last Update: 302 AM CST Sun Nov 1 2026 |  |
| Today: Southeast winds 10 to 15 kt early, diminishing to around 10 kt. Showers with a slight chance of a thunderstorm early in the morning, then a slight chance of showers. Waves 1 to 3 ft. Tonight: Southeast winds 10 to 15 kt becoming south. Mostly cloudy. Waves 1 to 3 ft. Monday: South winds 10 to 15 kt increasing to 15 to 20 kt. chance of showers in the afternoon. Waves 2 to 4 ft. Monday Night: South winds 15 to 25 kt. Chance of showers in the evening, then slight chance of showers overnight. Waves 3 to 6 ft occasionally to 8 ft. A small craft advisory may be needed. | |
| Zone Forecast: Wilmette Harbor to Northerly Island IL (LMZ741) | |
Visit your local NWS office at: https://www.weather.gov/lot |