829 FZUS53 KMKX 231210 NSHMKX Nearshore Marine Forecast National Weather Service Milwaukee/Sullivan WI 710 AM CDT Sun Aug 23 2026 For waters within five nautical miles of shore on Lake Michigan LMZ643-231600- Sheboygan to Port Washington WI- 710 AM CDT Sun Aug 23 2026 .TODAY...Northwest wind 10 to 20 knots becoming 15 to 20 knots in the late morning and early afternoon, then becoming north 10 to 15 knots with gusts to around 20 knots late in the afternoon. Slight chance of waterspouts in the morning. Waves 1 to 2 feet. .TONIGHT...North wind 10 to 15 knots backing northwest early in the morning. Mostly clear. Waves 1 to 2 feet. .MONDAY...Northwest wind 10 to 15 knots becoming north 5 to 10 knots early in the afternoon, then veering east late in the afternoon. Sunny. Waves around 1 foot. .MONDAY NIGHT...South wind 5 to 10 knots veering west early in the morning. Partly cloudy. Waves around 1 foot. $$ LMZ644-231600- Port Washington to North Point Light WI- 710 AM CDT Sun Aug 23 2026 .TODAY...Northwest wind 5 to 15 knots becoming 10 to 15 knots with gusts to around 20 knots in the late morning and early afternoon, then becoming northwest 10 to 15 knots late in the afternoon. Slight chance of waterspouts in the morning. Waves 1 to 2 feet. .TONIGHT...North wind 5 to 15 knots becoming 5 to 10 knots late in the evening, then becoming north 5 to 10 knots after midnight. Partly cloudy through around midnight then becoming clear. Waves 1 to 2 feet. .MONDAY...Northwest wind 5 to 10 knots veering northeast late in the afternoon. Sunny. Waves 1 to 2 feet. .MONDAY NIGHT...Southwest wind 5 to 10 knots veering west early in the morning. Partly cloudy. Waves around 1 foot. $$ LMZ645-231600- North Point Light to Wind Point WI- 710 AM CDT Sun Aug 23 2026 .TODAY...Northwest wind 5 to 15 knots becoming 10 to 15 knots late in the morning, then veering north in the afternoon. Slight chance of waterspouts in the morning. Waves 2 to 4 feet subsiding to 1 to 2 feet in the late morning and afternoon. .TONIGHT...North wind 10 to 15 knots easing to 5 to 10 knots in the late evening and early morning, then backing northwest early in the morning. Partly cloudy through around midnight then becoming clear. Waves 1 to 2 feet. .MONDAY...Northwest wind 5 to 10 knots veering northeast late in the afternoon. Sunny. Waves 1 to 2 feet. .MONDAY NIGHT...Southeast wind 5 to 10 knots veering west early in the morning. Partly cloudy. Waves around 1 foot. $$ LMZ646-231600- Wind Point WI to Winthrop Harbor IL- 710 AM CDT Sun Aug 23 2026 .TODAY...Northwest wind 5 to 15 knots becoming 10 to 15 knots late in the morning, then veering north early in the afternoon backing northwest late in the afternoon. Slight chance of waterspouts in the morning. Waves 1 to 2 feet. .TONIGHT...North wind 5 to 10 knots backing northwest after midnight. Mostly clear. Waves 1 to 2 feet. .MONDAY...Northwest wind 5 to 10 knots veering northeast late in the afternoon. Sunny. Waves 1 to 2 feet. .MONDAY NIGHT...East wind 5 to 10 knots veering south late in the evening, then veering southwest after midnight veering west early in the morning. Partly cloudy. Waves around 1 foot. $$ See Lake Michigan Open Waters Forecast for Tuesday through Thursday.  871 FZUS53 KDLH 231237 NSHDLH Nearshore Marine Forecast National Weather Service Duluth MN 737 AM CDT Sun Aug 23 2026 For waters within five nautical miles of shore on Lake Superior. Waves are the significant wave height - the average of the highest 1/3 of the wave spectrum. Occasional wave height is the average of the highest 1/10 of the wave spectrum. LSZ140-231600- Grand Portage to Grand Marais MN- 737 AM CDT Sun Aug 23 2026 .TODAY...North wind 10 to 15 knots with gusts to around 20 knots becoming west 5 knots early in the afternoon, then becoming southwest late in the afternoon. Sunny. Waves 1 foot or less. .TONIGHT...Southwest wind 5 to 10 knots becoming northwest after midnight. Mostly clear. Waves 1 foot or less. .MONDAY...Northwest wind 5 knots becoming southwest in the afternoon. Sunny. Waves 1 foot or less. .MONDAY NIGHT...Southwest wind 5 to 10 knots. Mostly cloudy. Waves 1 foot or less. $$ LSZ141-231600- Grand Marais to Taconite Harbor MN- 737 AM CDT Sun Aug 23 2026 .TODAY...North wind 10 to 15 knots easing to 5 knots late in the morning, then becoming southwest in the afternoon. Sunny. Waves 1 foot or less. .TONIGHT...Southwest wind 5 knots becoming northwest after midnight. Mostly clear. Waves 1 foot or less. .MONDAY...Northwest wind 5 knots becoming south in the late morning and afternoon. Mostly sunny. Waves 1 foot or less. .MONDAY NIGHT...Southwest wind 5 knots early in the evening becoming variable 10 knots or less. Mostly cloudy. Waves 1 foot or less. $$ LSZ142-231600- Taconite Harbor to Silver Bay Harbor MN- 737 AM CDT Sun Aug 23 2026 .TODAY...North wind 10 to 15 knots becoming south 5 knots in the afternoon. Sunny. Waves 1 foot or less. .TONIGHT...Southwest wind 5 knots becoming northwest after midnight. Mostly clear. Waves 1 foot or less. .MONDAY...Northwest wind 5 knots early in the morning becoming variable 10 knots or less, then becoming south 5 knots in the afternoon. Mostly sunny. Waves 1 foot or less. .MONDAY NIGHT...Variable winds 10 knots or less. Mostly cloudy. Waves 1 foot or less. $$ LSZ143-231600- Silver Bay Harbor to Two Harbors MN- 737 AM CDT Sun Aug 23 2026 .TODAY...Northeast wind 10 to 15 knots easing to 5 knots late in the morning, then becoming southeast in the afternoon. Sunny. Waves 1 foot or less. .TONIGHT...East wind 5 knots becoming northwest after midnight. Mostly clear. Waves 1 foot or less. .MONDAY...Variable winds 10 knots or less becoming southeast 5 knots in the afternoon. Mostly sunny. Waves 1 foot or less. .MONDAY NIGHT...Northeast wind 5 knots until early morning becoming variable 10 knots or less. Slight chance of rain showers after midnight. Waves 1 foot or less. $$ LSZ144-231600- Two Harbors to Duluth MN- 737 AM CDT Sun Aug 23 2026 .TODAY...Northeast wind 5 knots becoming east in the afternoon. Sunny. Waves 1 foot or less. .TONIGHT...Northeast wind 5 knots in the evening becoming variable 10 knots or less. Mostly clear. Waves 1 foot or less. .MONDAY...Variable winds 10 knots or less becoming east 5 knots in the afternoon. Mostly sunny. Waves 1 foot or less. .MONDAY NIGHT...Northeast wind 5 knots. Slight chance of rain showers after midnight. Waves 1 foot or less. $$ LSZ145-231600- Duluth MN to Port Wing WI- 737 AM CDT Sun Aug 23 2026 .TODAY...South wind 5 knots becoming east in the late morning and afternoon. Sunny. Waves 1 foot or less. .TONIGHT...East wind 5 knots becoming south after midnight, then becoming southwest early in the morning. Mostly clear. Waves 1 foot or less. .MONDAY...South wind 5 knots becoming northeast in the afternoon. Mostly sunny. Waves 1 foot or less. .MONDAY NIGHT...East wind 5 knots becoming southeast early in the morning. Slight chance of rain showers after midnight. Waves 1 foot orless. $$ LSZ146-231600- Port Wing to Sand Island WI- 737 AM CDT Sun Aug 23 2026 .TODAY...Northeast wind 10 to 15 knots becoming east 5 knots in the afternoon. Sunny. Waves 1 foot or less. .TONIGHT...East wind 5 knots becoming southeast late in the evening, then becoming southwest after midnight. Mostly clear. Waves 1 foot or less. .MONDAY...West wind 5 knots early in the morning becoming variable 10 knots or less, then becoming northeast 5 knots early in the afternoon becoming east. Mostly sunny. Waves 1 foot or less. .MONDAY NIGHT...Southeast wind 5 knots until early morning becoming variable 10 knots or less. Partly cloudy in the evening then becoming mostly cloudy. Waves 1 foot or less. $$ LSZ147-231600- Sand Island to Bayfield WI- 737 AM CDT Sun Aug 23 2026 .TODAY...North wind 10 to 15 knots becoming east 5 knots early in the afternoon, then becoming southeast late in the afternoon. Sunny. Waves 1 foot or less. .TONIGHT...South wind 5 knots becoming west after midnight. Mostly clear. Waves 1 foot or less. .MONDAY...West wind 5 knots early in the morning becoming variable 10 knots or less, then becoming northeast 5 knots early in the afternoon becoming east. Mostly sunny. Waves 1 foot or less. .MONDAY NIGHT...Southeast wind 5 knots becoming south early in the morning. Partly cloudy. Waves 1 foot or less. $$ LSZ150-231600- Outer Apostle Islands Beyond 5 NM from Mainland- 737 AM CDT Sun Aug 23 2026 .TODAY...North wind 10 to 15 knots with gusts to around 20 knots easing to 5 knots early in the afternoon, then becoming south late in the afternoon. Sunny. Waves 1 to 2 feet. .TONIGHT...South wind 5 knots becoming west after midnight. Mostly clear. Waves 1 foot or less. .MONDAY...Northwest wind 5 knots becoming northeast early in the afternoon, then becoming southeast late in the afternoon. Mostly sunny. Waves 1 foot or less. .MONDAY NIGHT...Southeast wind 5 knots becoming south early in the morning. Mostly cloudy in the evening then becoming partly cloudy. Waves 1 foot or less. $$ LSZ121-231600- Chequamegon Bay-Bayfield to Oak Point WI- 737 AM CDT Sun Aug 23 2026 .TODAY...North wind 5 to 10 knots becoming east late in the afternoon. Sunny. Waves 1 foot or less. .TONIGHT...Southeast wind 5 knots becoming southwest after midnight. Mostly clear. Waves 1 foot or less. .MONDAY...West wind 5 knots early in the morning becoming variable 10 knots or less, then becoming east 5 knots in the afternoon. Sunny. Waves 1 foot or less. .MONDAY NIGHT...East wind 5 knots becoming south after midnight. Partly cloudy. Waves 1 foot or less. $$ LSZ148-231600- Oak Point to Saxon Harbor WI- 737 AM CDT Sun Aug 23 2026 .TODAY...North wind 5 to 10 knots becoming east late in the afternoon. Sunny. Waves 1 to 2 feet. .TONIGHT...Southeast wind 5 knots becoming southwest after midnight. Mostly clear. Waves 1 foot or less. .MONDAY...Southwest wind 5 knots becoming west late in the morning, then becoming northeast in the afternoon. Sunny. Waves 1 foot or less. .MONDAY NIGHT...Southeast wind 5 knots becoming south after midnight. Partly cloudy. Waves 1 foot or less. $$ Graphical marine forecasts are available online at: weather.gov/greatlakes WFO DLH  626 FZUS53 KGRR 231258 NSHGRR Nearshore Marine Forecast National Weather Service Grand Rapids MI 858 AM EDT Sun Aug 23 2026 For waters within five nautical miles of shore on Lake Michigan LMZ849-232000- Pentwater to Manistee MI- 858 AM EDT Sun Aug 23 2026 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS EVENING... .TODAY...Northwest winds 20 to 25 knots. Mostly sunny. A slight chance of rain showers in the morning. Waves 4 to 6 feet. .TONIGHT...North winds 15 to 25 knots. Partly cloudy. Waves 3 to 5 feet. .MONDAY...Northwest winds 10 to 20 knots. Sunny. Waves 3 to 5 feet subsiding to 2 to 4 feet early in the afternoon. .MONDAY NIGHT...Northwest winds 5 to 15 knots backing south after midnight. Partly cloudy. Waves 1 to 3 feet. .TUESDAY...South winds 5 to 10 knots veering southwest 10 to 20 knots in the late morning and afternoon. Mostly sunny. Waves 1 to 2 feet. .WEDNESDAY...South winds to 30 knots. Partly sunny with a chance of showers and thunderstorms. Waves 4 to 6 feet. .THURSDAY...Northwest winds 10 to 20 knots. Mostly sunny. Waves 2 to 4 feet. $$ LMZ848-232000- Whitehall to Pentwater MI- 858 AM EDT Sun Aug 23 2026 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS EVENING... .TODAY...Northwest winds to 30 knots. Mostly sunny. Waves 5 to 7 feet. .TONIGHT...North winds 15 to 25 knots. Partly cloudy. Waves 3 to 5 feet. .MONDAY...Northwest winds 15 to 25 knots. Sunny. Waves 2 to 4 feet. .MONDAY NIGHT...Northwest winds 10 to 15 knots backing southwest 5 to 10 knots after midnight. Partly cloudy. Waves 1 to 3 feet. .TUESDAY...Southwest winds 5 to 15 knots. Mostly sunny. Waves 1 to 2 feet. .WEDNESDAY...South winds 20 to 25 knots. Partly sunny with rain showers likely and a chance of thunderstorms. Waves 4 to 6 feet. .THURSDAY...Northwest winds 15 to 20 knots. Mostly sunny. Waves 2 to 4 feet. $$ LMZ847-232000- Grand Haven to Whitehall MI- 858 AM EDT Sun Aug 23 2026 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS EVENING... .TODAY...Northwest winds to 30 knots. Mostly sunny. Waves 5 to 7 feet. .TONIGHT...North winds 15 to 25 knots decreasing to 10 to 15 knots in the late evening and overnight. Mostly clear. Waves 4 to 6 feet subsiding to 1 to 3 feet. .MONDAY...Northwest winds 15 to 25 knots. Sunny. Waves 2 to 4 feet. .MONDAY NIGHT...Northwest winds 10 to 20 knots decreasing to 5 to 10 knots in the late evening and early morning, then backing west after midnight. Partly cloudy. Waves 2 to 4 feet. .TUESDAY...Southwest winds 5 to 15 knots. Mostly sunny. Waves around 1 foot. .WEDNESDAY...South winds 20 to 25 knots. Partly sunny with rain showers likely and a chance of thunderstorms. Waves 4 to 6 feet. .THURSDAY...Northwest winds 15 to 20 knots. Sunny. Waves 2 to 4 feet. $$ LMZ846-232000- Holland to Grand Haven MI- 858 AM EDT Sun Aug 23 2026 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS EVENING... .TODAY...Northwest winds to 30 knots. Sunny. A slight chance of rain showers in the morning. A slight chance of waterspouts in the morning. Waves 5 to 7 feet. .TONIGHT...North winds 15 to 25 knots decreasing to 10 to 15 knots in the late evening and overnight. Mostly clear. Waves 4 to 6 feet subsiding to 1 to 3 feet. .MONDAY...Northwest winds 10 to 20 knots. Sunny. Waves 2 to 4 feet. .MONDAY NIGHT...Northwest winds 15 to 20 knots becoming west around 5 knots. Partly cloudy. Waves 2 to 4 feet. .TUESDAY...Southwest winds 5 to 15 knots. Mostly sunny. Waves around 1 foot. .WEDNESDAY...Southwest winds 20 to 25 knots. Partly sunny with a chance of showers and thunderstorms. Waves 3 to 5 feet. .THURSDAY...Northwest winds 15 to 20 knots. Mostly sunny. Waves 2 to 4 feet. $$ LMZ845-232000- South Haven to Holland MI- 858 AM EDT Sun Aug 23 2026 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS EVENING....TODAY...Northwest winds 15 to 25 knots. Sunny. A slight chance of rain showers in the morning. A slight chance of waterspouts in the morning. Waves 5 to 7 feet. .TONIGHT...North winds 10 to 20 knots. Mostly clear. Waves 4 to 6 feet subsiding to 2 to 4 feet after midnight. .MONDAY...Northwest winds 10 to 20 knots. Sunny. Waves 2 to 4 feet. .MONDAY NIGHT...Northwest winds 10 to 15 knots backing west around 5 knots after midnight. Mostly clear. Waves 2 to 4 feet. .TUESDAY...Southwest winds 5 to 10 knots. Sunny. Waves 1 foot or less. .WEDNESDAY...Southwest winds 15 to 20 knots. Partly sunny with a chance of showers and thunderstorms. Waves 3 to 5 feet. .THURSDAY...Northwest winds 15 to 20 knots. Sunny. Waves 2 to 4 feet. $$ LMZ844-232000- St Joseph to South Haven MI- 858 AM EDT Sun Aug 23 2026 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS EVENING... .TODAY...Northwest winds 15 to 25 knots. Sunny. A slight chance of rain showers in the morning. A slight chance of waterspouts in the morning. Waves 5 to 7 feet. .TONIGHT...North winds 10 to 20 knots veering northeast 5 to 10 knots after midnight. Mostly clear. Waves 4 to 6 feet subsiding to 2 to 4 feet after midnight. .MONDAY...North winds 5 to 15 knots backing northwest in the late morning and afternoon. Sunny. Waves 2 to 4 feet. .MONDAY NIGHT...Northwest winds 5 to 15 knots backing west around 5 knots after midnight. Mostly clear. Waves 1 to 3 feet. .TUESDAY...Southwest winds 5 to 10 knots veering west early in the afternoon. Sunny. Waves 1 foot or less. .WEDNESDAY...Southwest winds 15 to 20 knots. Partly sunny. Waves 1 to 3 feet. .THURSDAY...Northwest winds 10 to 15 knots. Sunny. Waves 2 to 4 feet. $$