| NWS Forecast for: Winthrop Harbor to Wilmette Harbor IL (LMZ740) Issued by: National Weather Service Chicago, IL Last Update: 310 PM CST Fri Jan 30 2026 |  |
Late This Afternoon: Northeast winds 15 to 20 kt. Snow showers. Tonight: North winds 15 to 20 kt becoming northwest 20 to 25 kt. Snow showers, especially in the evening. Saturday: North winds 20 to 25 kt diminishing to 15 to 20 kt. Snow showers. Saturday Night: Northwest winds 10 to 15 kt becoming west overnight. Mostly cloudy in the evening, then becoming partly cloudy. Sunday: Southwest winds 10 to 15 kt. Partly cloudy in the morning, then becoming mostly cloudy. waves omitted due to extensive ice coverage | |
| Zone Forecast: Winthrop Harbor to Wilmette Harbor IL (LMZ740) | |
Visit your local NWS office at: https://www.weather.gov/lot |