Showers and Thunderstorms in the Southwest and Ohio Valley; Mountain Snow in the Northeast
Showers and thunderstorms, along with high-elevation snow, will begin to develop over parts of the Southwest late tonight and is expected to continue through Wednesday morning. Mountain snow over parts the Northeast will continue through Tuesday. A few strong to severe storms and heavy rainfall are possible across portions of the Lower Ohio Valley Tuesday. Read More >
| NWS Forecast for: Lake Michigan from Winthrop Harbor to Wilmette Harbor IL 5NM offshore to Mid Lake (LMZ777) Issued by: National Weather Service Chicago, IL Last Update: 254 AM CST Tue Nov 18 2025 | |
| Today: East winds 10 to 20 kt. Rain and slight chance of snow this morning, then chance of rain this afternoon. Waves 2 to 4 ft building to 4 to 6 ft occasionally to 8 ft. Tonight: East winds 10 to 20 kt diminishing to 10 to 15 kt. Slight chance of rain in the evening. Waves 3 to 5 ft subsiding to 2 to 4 ft. Wednesday: East winds 10 to 15 kt becoming southeast 5 to 10 kt. Waves 1 to 3 ft subsiding to 1 to 2 ft. Wednesday Night: South winds 5 to 10 kt becoming southwest. Waves 1 to 2 ft. Thursday: Southwest winds 10 to 20 kt. Chance of rain in the afternoon. Waves 2 to 4 ft. Thursday Night: West winds 10 to 20 kt becoming northwest. Waves 2 to 4 ft building to 3 to 5 ft. Friday: Northwest winds 10 to 20 kt becoming north. Waves 4 to 6 ft occasionally to 8 ft. Saturday: Northeast winds 10 to 15 kt veering to southwest 10 to 20 kt. Waves 2 to 4 ft. | |
| Zone Forecast: Lake Michigan from Winthrop Harbor to Wilmette Harbor IL 5NM offshore to Mid Lake (LMZ777) | |
Visit your local NWS office at: https://www.weather.gov/lot |