Great Lakes Forecast
Issued by NWS
Issued by NWS
849 FZUS63 KMKX 080752 GLFLM OPEN LAKE FORECAST for Lake Michigan National Weather Service Milwaukee/Sullivan WI 252 AM CDT Mon Jun 8 2026 FOR WATERS BEYOND FIVE NAUTICAL MILES OF SHORE ON Lake Michigan. Waves are provided as a range of significant wave heights, which is the average of the highest 1/3 of the wave, along with the average height of the highest 10% of the waves which will occasionally be encountered. .SYNOPSIS... High pressure of 30.2 inches over the Lower Great Lakes will continue to shift eastward today. Light to moderate southeast winds developing over Lake Michigan will persist through tonight. Scattered showers and thunderstorms are expected mainly this afternoon and night as a warm front lifts northward. Winds will become southerly and storms become more isolated behind the front on Tuesday. A brief period of light and variable winds may occur Tuesday evening, followed by gusty south winds into Wednesday as low pressure deepens west of the region. LMZ261-362-364-366-563-565-567-868-081530- Lake Michigan from Seul Choix Point to Rock Island Passage 5 NM offshore to Mid Lake- Lake Michigan South of a line from Seul Choix Point to the Mackinac Bridge and north of a line from Charlevoix MI to South Fox Island 5 NM offshore- Lake Michigan from Charlevoix to Point Betsie MI 5 NM offshore to Mid Lake- Lake Michigan from Point Betsie to Manistee MI 5 NM offshore to Mid Lake- Lake Michigan from Rock Island Passage to Sturgeon Bay WI- Lake Michigan from Sturgeon Bay to Two Rivers WI 5 NM offshore to Mid Lake- Lake Michigan from Two Rivers to Sheboygan WI 5 NM offshore to Mid Lake- Lake Michigan from Pentwater to Manistee MI 5 NM offshore to Mid Lake- 252 AM CDT Mon Jun 8 2026 SHEBOYGAN WI TO PENTWATER MI NORTH... .TODAY...Southeast winds 10 to 20 kt becoming east. Waves 2 to 4 ft subsiding to 1 to 3 ft. .TONIGHT...East winds 10 to 20 kt becoming southeast 10 to 15 kt. Chance of showers and slight chance of thunderstorms in the evening, then showers and slight chance of thunderstorms overnight. Waves 1 to 3 ft. .TUESDAY...East winds 10 to 15 kt backing to north. Chance of showers in the morning. Waves 1 to 3 ft. .TUESDAY NIGHT...North winds 5 to 10 kt backing to west. Chance of showers overnight. Waves 1 to 2 ft. .WEDNESDAY...South winds 10 to 20 kt increasing to 15 to 25 kt. Waves 1 to 3 ft building to 4 to 7 ft occasionally to 9 ft. .WEDNESDAY NIGHT...South winds to 30 kt. Showers with a chance of thunderstorms. Waves 4 to 7 ft occasionally to 9 ft. .THURSDAY...Southwest winds 15 to 25 kt becoming south. Chance of showers and thunderstorms. Waves 4 to 7 ft occasionally to 9 ft subsiding to 4 to 6 ft occasionally to 8 ft. .FRIDAY...Southwest winds 15 to 25 kt increasing to 30 kt. Waves 3 to 5 ft. $$ LMZ080-669-671-673-675-777-779-870-872-874-876-878-081530- Lake Michigan from Michigan City IN to St. Joseph MI 5 NM offshore to Mid Lake- Lake Michigan from Sheboygan to Port Washington WI 5 NM offshore to Mid Lake- Lake Michigan from Port Washington to North Point Light WI 5 NM offshore to Mid Lake- Lake Michigan from North Point Light to Wind Point WI 5 NM offshore to Mid Lake- Lake Michigan from Wind Point WI to Winthrop Harbor IL 5 NM offshore to Mid Lake- Lake Michigan from Winthrop Harbor to Wilmette Harbor IL 5 NM offshore to Mid Lake- Lake Michigan from Wilmette Harbor IL to Michigan City IN 5 NM offshore to Mid Lake- Lake Michigan from Whitehall to Pentwater MI 5 NM offshore to Mid Lake- Lake Michigan from Grand Haven to Whitehall MI 5 NM offshore to Mid Lake- Lake Michigan from Holland to Grand Haven MI 5 NM offshore to Mid Lake- Lake Michigan from South Haven to Holland MI 5 NM offshore to Mid Lake- Lake Michigan from St. Joseph to South Haven MI 5 NM offshore to Mid Lake- 252 AM CDT Mon Jun 8 2026 SHEBOYGAN WI TO PENTWATER MI SOUTH... .TODAY...Southeast winds 10 to 20 kt. Chance of showers and slight chance of thunderstorms this afternoon. Waves 3 to 5 ft subsiding to 2 to 4 ft. .TONIGHT...Southeast winds 10 to 15 kt increasing to 10 to 20 kt. Showers with a chance of thunderstorms in the evening, then showers likely with a chance of thunderstorms overnight. Waves 1 to 3 ft. .TUESDAY...South winds 10 to 15 kt veering to west. Chance of showers in the morning. Waves 1 to 3 ft subsiding to 1 to 2 ft. .TUESDAY NIGHT...North winds 5 to 10 kt backing to south. Chance of showers and thunderstorms overnight. Waves 1 to 2 ft. .WEDNESDAY...South winds 10 to 20 kt increasing to 15 to 25 kt. Waves 2 to 4 ft building to 4 to 7 ft occasionally to 9 ft. .WEDNESDAY NIGHT...South winds 15 to 25 kt becoming southwest. Showers likely with a chance of thunderstorms. Waves 4 to 7 ft occasionally to 9 ft. .THURSDAY...Southwest winds 10 to 20 kt becoming south. Chance of thunderstorms. Waves 4 to 6 ft occasionally to 8 ft subsiding to 3 to 5 ft. .FRIDAY...West winds 10 to 20 kt becoming southwest. Waves 2 to 4 ft. $$ LMZ761-081530- MAFOR 0810/ MICHIGAN NORTH 11320 11310 12220 11120 11220 11326 11316. Waves 2 to 4 feet subsiding to 1 to 3 feet today. Waves 1 to 3 feet tonight. MICHIGAN SOUTH 14320 11310 13316. A chance of thunderstorms tonight. Waves 2 to 4 feet subsiding to 1 to 3 feet today and tonight. $$ Cronce Experimental modernized open lake forecast is available online at weather.gov/mkx/glftable Graphical marine forecasts are available online at: weather.gov/greatlakes