Expires:202507110915;;233468 FZUS63 KMKX 110151 GLFLM OPEN LAKE FORECAST for Lake Michigan National Weather Service Milwaukee/Sullivan WI 851 PM CDT Thu Jul 10 2025 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 30.0 inches currently over the region will slowly move east into Friday, while a broad, weak low pressure of 29.8 inches slowly enters from the west. Light winds will become southerly by Friday morning between the departing high and approaching low. Winds will increase out of the south on Saturday as the weak low moves overhead, becoming westerly Saturday night as it exits Rounds of scattered showers and thunderstorms are likely through tonight, mainly across the south half of the lake. Shower and storm chances will then continue Friday night and Saturday across the lake. Quiet weather conditions are expected Sunday into early next week. LMZ080-669-671-673-675-777-779-870-872-874-876-878-110915- 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- 851 PM CDT Thu Jul 10 2025 SHEBOYGAN WI TO PENTWATER MI SOUTH... .REST OF TONIGHT...Northeast winds 5 to 10 kt veering to south. Scattered showers and thunderstorms through early evening, then showers likely with a chance of thunderstorms overnight. Waves 1 to 2 ft. .FRIDAY...South winds 10 to 20 kt. Chance of showers and thunderstorms. Waves 1 to 3 ft. .FRIDAY NIGHT...Southeast winds 10 to 15 kt becoming south 10 to 20 kt. Chance of showers and thunderstorms in the evening, then chance of showers overnight. Waves 1 to 3 ft. .SATURDAY...South winds 10 to 20 kt becoming southwest. Chance of showers in the morning, then chance of thunderstorms in the afternoon. Waves 2 to 4 ft. .SATURDAY NIGHT...Southwest winds 10 to 20 kt becoming west 10 to 15 kt. Chance of showers and thunderstorms in the evening. Waves 2 to 4 ft. .SUNDAY...West winds 10 to 15 kt. Waves 1 to 3 ft. .SUNDAY NIGHT...Southwest winds 5 to 10 kt becoming west. Waves 1 to 2 ft. .MONDAY...Southwest winds 10 to 15 kt becoming south 10 to 20 kt. Waves 1 to 2 ft. .TUESDAY...South winds 10 to 15 kt increasing to 10 to 20 kt. Waves 1 to 3 ft. $$