Great Lakes Forecast
Issued by NWS
Issued by NWS
489 FZUS63 KMKX 021942 GLFLM OPEN LAKE FORECAST for Lake Michigan National Weather Service Milwaukee/Sullivan WI 242 PM CDT Tue Jun 2 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 around 30.4 inches will settle over Lake Michigan this afternoon then move to Lower Michigan by Wednesday morning. Expect light to modest north to northeasterly flow over central and southern Lake Michigan this afternoon into this evening, but with light westerly winds developing over the northern one third of the lake. Southerly winds will then return to all of Lake Michigan for Wednesday and Wednesday night as the high pressure slowly moves east of the region. Modest south to southwest winds will then prevail over the lake for Thursday into Saturday morning followed by a wind shift to the north during a cold frontal passage Saturday afternoon. Shower and storm chances will return Friday and Saturday. LMZ261-362-364-366-563-565-567-868-030315- 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- 242 PM CDT Tue Jun 2 2026 SHEBOYGAN WI TO PENTWATER MI NORTH... .TONIGHT...Northwest winds 10 to 20 kt diminishing to 5 to 10 kt late this evening, then becoming southwest after midnight becoming southwest 5 to 10 kt late. Waves 1 to 2 ft subsiding to nearly calm. .WEDNESDAY...Southwest winds 5 to 10 kt becoming south 10 to 20 kt. Waves 1 to 2 ft. .WEDNESDAY NIGHT...South winds 10 to 20 kt. Waves 2 to 4 ft. .THURSDAY...South winds 15 to 25 kt increasing to 30 kt. Waves 2 to 4 ft building to 4 to 6 ft occasionally to 8 ft. .THURSDAY NIGHT...South winds to 30 kt becoming southwest 10 to 20 kt overnight. Chance of showers. Waves 4 to 6 ft occasionally to 8 ft. .FRIDAY...Southwest winds 10 to 20 kt becoming south. Chance of showers in the morning, then showers likely with a chance of thunderstorms in the afternoon. Waves 3 to 5 ft. .FRIDAY NIGHT...Southwest winds 10 to 20 kt diminishing to 10 to 15 kt. Showers likely with a chance of thunderstorms. Waves 3 to 5 ft. .SATURDAY...Southwest winds 10 to 15 kt veering to northwest 10 to 20 kt. Chance of showers. Waves 2 to 4 ft. .SUNDAY...North winds 10 to 15 kt increasing to 10 to 20 kt. Waves 1 to 2 ft. $$ LMZ080-669-671-673-675-777-779-870-872-874-876-878-030315- 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- 242 PM CDT Tue Jun 2 2026 SHEBOYGAN WI TO PENTWATER MI SOUTH... .TONIGHT...North winds 10 to 20 kt diminishing to 10 to 15 kt late this evening, then becoming northeast after midnight becoming northeast 5 to 10 kt late. Waves 1 to 3 ft. .WEDNESDAY...Southeast winds less than 10 kt becoming south late in the morning, then becoming 10 to 15 kt early in the afternoon becoming southeast 10 to 20 kt late. Waves 1 to 2 ft. .WEDNESDAY NIGHT...Southeast winds 10 to 20 kt becoming south 10 to 15 kt. Waves 1 to 3 ft. .THURSDAY...South winds 10 to 20 kt increasing to 15 to 25 kt. Waves 2 to 4 ft building to 4 to 6 ft occasionally to 8 ft. .THURSDAY NIGHT...South winds 10 to 20 kt becoming southwest. Waves 4 to 6 ft occasionally to 8 ft. .FRIDAY...Southwest winds 10 to 20 kt becoming south. Chance of showers and thunderstorms in the afternoon. Waves 4 to 6 ft occasionally to 8 ft. .FRIDAY NIGHT...Southwest winds 10 to 20 kt. Showers likely with a chance of thunderstorms. Waves 3 to 5 ft. .SATURDAY...Southwest winds 10 to 20 kt. Chance of showers. Waves 2 to 4 ft. .SUNDAY...North winds 10 to 15 kt increasing to 10 to 20 kt. Waves 1 to 2 ft. $$ LMZ761-030315- MAFOR 0222/ MICHIGAN NORTH 11720 11700 11600 12500 11510 11520 11420. Waves 2 feet or less. MICHIGAN SOUTH 11820 11810 11110 11100 11200 11400 12410. Waves 1 to 3 feet tonight. Waves 2 feet or less Wednesday. $$ MH Experimental modernized open lake forecast is available online at weather.gov/mkx/glftable Graphical marine forecasts are available online at: weather.gov/greatlakes