Coastal Waters Forecast for Lake Michigan from Sheboygan to Port Washington WI 5NM offshore to Mid Lake (LMZ669) (Text-Only)
NWS Forecast for: Lake Michigan from Sheboygan to Port Washington WI 5NM offshore to Mid Lake (LMZ669)
Issued by: National Weather Service Milwaukee, WI
Last Update: 218 AM CDT Sun Apr 12 2026




Today: South winds to 30 kt. Patchy fog. Scattered rain showers and slight chance of thunderstorms this morning, then chance of rain showers and thunderstorms this afternoon. Waves 6 to 9 ft occasionally to 12 ft building to 7 to 10 ft occasionally to 13 ft.

Tonight: Southwest winds to 30 kt. A few gale force gusts possible. Patchy fog. Rain showers likely with a chance of thunderstorms in the evening, then chance of rain showers and slight chance of thunderstorms overnight. Waves 8 to 11 ft occasionally to 14 ft subsiding to 7 to 10 ft occasionally to 13 ft.

Monday: Southwest winds 15 to 25 kt becoming south 10 to 20 kt. Chance of rain showers in the afternoon. Waves 5 to 8 ft occasionally to 10 ft subsiding to 2 to 4 ft.

Monday Night: South winds 10 to 20 kt becoming southwest 15 to 25 kt. Rain showers likely with a chance of thunderstorms in the evening, then chance of rain showers and thunderstorms overnight. Waves 3 to 5 ft building to 4 to 6 ft occasionally to 8 ft.

Tuesday: Southwest winds 15 to 25 kt becoming south 10 to 20 kt. Waves 4 to 6 ft occasionally to 8 ft.

Tuesday Night: South winds 10 to 20 kt becoming southwest 15 to 25 kt. Rain showers with a chance of thunderstorms. Waves 3 to 5 ft building to 4 to 7 ft occasionally to 9 ft.

Wednesday: Southwest winds 15 to 25 kt becoming south 10 to 20 kt. Chance of rain showers. Waves 5 to 8 ft occasionally to 10 ft.

Thursday: Southwest winds 10 to 20 kt becoming west. Chance of rain showers. Waves 3 to 5 ft.







Zone Forecast: Lake Michigan from Sheboygan to Port Washington WI 5NM offshore to Mid Lake (LMZ669)

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