| NWS Forecast for: Lake Michigan from Wilmette Harbor to Michigan City in 5NM offshore to Mid Lake (LMZ779) Issued by: National Weather Service Chicago, IL Last Update: 946 PM CDT Tue Apr 14 2026 | |
Rest Of Tonight: South winds 15 to 25 kt becoming southwest. Patchy fog late this evening, then areas of dense fog overnight. Showers with thunderstorms likely late this evening, then showers likely with a chance of thunderstorms overnight. Waves 2 to 4 ft. Wednesday: Southwest winds 10 to 20 kt becoming south. Areas of dense fog in the morning, then patchy dense fog in the afternoon. Rain showers likely with a chance of thunderstorms in the morning, then chance of rain showers and thunderstorms in the afternoon. Waves 1 to 3 ft. Wednesday Night: South winds 10 to 20 kt diminishing to 10 to 15 kt. Patchy fog in the evening. Rain showers with a chance of thunderstorms. Waves 1 to 3 ft. Thursday: Southwest winds 15 to 25 kt becoming west 10 to 15 kt in the afternoon. Rain showers likely in the morning, then rain showers likely with a chance of thunderstorms in the afternoon. Waves 2 to 4 ft. Thursday Night: Northwest winds 5 to 10 kt becoming north. Waves 1 to 3 ft. Friday: Southeast winds 5 to 10 kt increasing to 10 to 15 kt. Waves 1 to 2 ft. Friday Night: Southeast winds 15 to 25 kt becoming south. Showers with a chance of thunderstorms. Waves 3 to 5 ft building to 4 to 7 ft occasionally to 9 ft. Saturday: South winds 15 to 25 kt becoming southwest. Chance of showers. Waves 5 to 8 ft occasionally to 10 ft. Sunday: West winds to 30 kt becoming northwest. Waves 8 to 12 ft occasionally to 16 ft. | |
| Zone Forecast: Lake Michigan from Wilmette Harbor to Michigan City in 5NM offshore to Mid Lake (LMZ779) | |
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