473 FZUS51 KBUF 092003 NSHBUF Nearshore Marine Forecast National Weather Service Buffalo NY 403 PM EDT Thu Jul 9 2026 For waters within five nautical miles of shore 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. LEZ020-100300- Upper Niagara River and Buffalo Harbor- 403 PM EDT Thu Jul 9 2026 .TONIGHT...Northeast winds less than 10 knots. Showers likely with a chance of thunderstorms early, then a chance of showers and thunderstorms late this evening. A chance of showers after midnight. .FRIDAY...Light and variable winds. A chance of showers in the morning, then a chance of showers and thunderstorms in the afternoon. .FRIDAY NIGHT...North winds less than 10 knots. Partly to mostly cloudy. .SATURDAY...Light and variable winds becoming northeast 5 to 10 knots. Sunny. .SATURDAY NIGHT...Northeast winds less than 10 knots. Mainly clear. .SUNDAY...Light and variable winds. Mainly clear. .MONDAY...South winds less than 10 knots becoming southwest. Mainly clear, then becoming partly cloudy. .TUESDAY...Southwest winds 5 to 10 knots becoming west. Partly cloudy. Winds and waves higher in and near thunderstorms. The water temperature off Buffalo is 75 degrees. $$ LOZ030-100300- Lower Niagara River- 403 PM EDT Thu Jul 9 2026 .TONIGHT...East winds less than 10 knots. Showers likely with a chance of thunderstorms early, then a chance of showers from late evening on. .FRIDAY...Light and variable winds. A chance of showers in the morning. .FRIDAY NIGHT...North winds less than 10 knots. Partly to mostly cloudy. .SATURDAY...Northeast winds 10 knots or less. Sunny. .SATURDAY NIGHT...Northeast winds less than 10 knots. Mainly clear. .SUNDAY...Light and variable winds. Mainly clear. .MONDAY...Southwest winds 10 knots or less. Mainly clear, then becoming partly cloudy. .TUESDAY...Southwest winds 10 to 15 knots becoming west. Partly cloudy. Winds and waves higher in and near thunderstorms. $$ LEZ040-100300- Ripley to Dunkirk along Lake Erie- 403 PM EDT Thu Jul 9 2026 .TONIGHT...Southwest winds 10 knots or less. A chance of showers and thunderstorms through the early overnight, then a chance of showers late. Waves 1 to 2 feet. .FRIDAY...West winds less than 10 knots becoming northwest. A chance of showers in the morning, then a chance of showers and thunderstorms in the afternoon. Waves around 1 foot. .FRIDAY NIGHT...Light and variable winds becoming northeast 5 to 10 knots. Mostly cloudy. Waves 1 foot or less. .SATURDAY...Northeast winds 5 to 10 knots. Mostly sunny. Waves 1 foot or less. .SATURDAY NIGHT...Northeast winds 10 knots or less becoming east. Mainly clear. Waves 1 foot or less. .SUNDAY...East winds 10 knots or less becoming southeast. Mainly clear. Waves 1 foot or less. .MONDAY...South winds 10 knots or less becoming southwest. Mainly clear. Waves 1 foot or less. .TUESDAY...Southwest winds 5 to 10 knots becoming west. Mainly clear, then becoming partly cloudy. Waves 2 feet or less. Winds and waves higher in and near thunderstorms. $$ LEZ041-100300- Dunkirk to Buffalo along Lake Erie- 403 PM EDT Thu Jul 9 2026 .TONIGHT...Southwest winds 10 knots or less. A chance of showers and thunderstorms through the early overnight, then a chance of showers late. Waves 2 feet or less. .FRIDAY...West winds less than 10 knots. A chance of showers in the morning, then a chance of showers and thunderstorms in the afternoon. Waves 1 foot or less. .FRIDAY NIGHT...Light and variable winds. Mostly cloudy. Waves 1 foot or less. .SATURDAY...Northeast winds 10 knots or less. Mostly sunny. Waves 1 foot or less. .SATURDAY NIGHT...Northeast winds 5 to 10 knots becoming light and variable. Mainly clear. Waves 1 foot or less. .SUNDAY...East winds less than 10 knots. Mainly clear. Waves 1 foot or less. .MONDAY...South winds 10 knots or less becoming southwest. Mainly clear. Waves 1 foot or less. .TUESDAY...Southwest winds 5 to 15 knots becoming west. Mainly clear, then becoming partly cloudy. Waves 2 feet or less. Winds and waves higher in and near thunderstorms. $$ LOZ042-100300- Niagara River to Hamlin Beach along Lake Ontario- 403 PM EDT Thu Jul 9 2026 .TONIGHT...West winds 10 knots or less becoming northwest. Showers likely with a chance of thunderstorms early, then a chance of showers from late evening on. Waves 1 foot or less. .FRIDAY...Light and variable winds. A chance of showers in the morning. Waves 1 foot or less. .FRIDAY NIGHT...Light and variable winds becoming northeast 5 to 10 knots. Partly to mostly cloudy. Waves 1 foot or less. .SATURDAY...Northeast winds 5 to 10 knots. Sunny. Waves 2 feet or less. .SATURDAY NIGHT...Northeast winds less than 10 knots. Mainly clear. Waves 1 foot or less. .SUNDAY...Light and variable winds. Mainly clear. Waves 1 foot or less. .MONDAY...Southwest winds 10 knots or less. Mainly clear, then becoming partly cloudy. Waves 2 feet or less. .TUESDAY...Southwest winds 10 to 15 knots becoming west 15 to 20 knots. Partly cloudy. Waves 1 to 2 feet building to 2 to 4 feet. Winds and waves higher in and near thunderstorms. $$ LOZ043-044-100300- Hamlin Beach to Mexico Bay along Lake Ontario including Irondequoit Bay- 403 PM EDT Thu Jul 9 2026 .TONIGHT...Northwest winds 10 knots or less becoming west. A chance of showers and thunderstorms early, then a chance of showers late this evening. A chance of showers late. Waves 1 foot or less. .FRIDAY...Northwest winds less than 10 knots. A chance of showers in the morning. Waves 1 foot or less. .FRIDAY NIGHT...Northwest winds 10 knots or less becoming north. Partly cloudy in the evening, then becoming mostly cloudy. Waves 1 foot or less. .SATURDAY...Northeast winds 5 to 10 knots becoming north. Mostly sunny. Waves 2 feet or less. .SATURDAY NIGHT...North winds 5 to 10 knots becoming light and variable. Mainly clear. Waves 1 foot or less. .SUNDAY...Light and variable winds. Mainly clear. Waves 1 foot or less. .MONDAY...Southwest winds 10 knots or less. Mainly clear, then becoming partly cloudy. Waves 1 foot or less. .TUESDAY...Southwest winds 5 to 15 knots becoming west 15 to 20 knots. Partly cloudy. Waves 1 to 3 feet building to 2 to 4 feet. Winds and waves higher in and near thunderstorms. The water temperature off Rochester is 48 degrees. $$ LOZ045-100300- Mexico Bay to the Saint Lawrence River along Lake Ontario- 403 PM EDT Thu Jul 9 2026 .TONIGHT...Northwest winds less than 10 knots. A chance of showers and thunderstorms early, then a chance of showers late this evening. Waves 1 foot or less. .FRIDAY...North winds less than 10 knots becoming northwest. Partly to mostly sunny. Waves 1 foot or less. .FRIDAY NIGHT...Northwest winds 10 knots or less becoming northeast. Mainly clear in the evening, then becoming partly cloudy. Waves 1 foot or less. .SATURDAY...Northeast winds 5 to 10 knots becoming north. Sunny. Waves 1 foot or less. .SATURDAY NIGHT...North winds 5 to 10 knots becoming light and variable. Clear. Waves 1 foot or less. .SUNDAY...Light and variable winds. Mainly clear. Waves 1 foot or less. .MONDAY...South winds 5 to 10 knots becoming southwest. Mainly clear, then becoming partly cloudy. Waves 2 feet or less. .TUESDAY...Southwest winds 10 to 15 knots becoming west 15 to 20 knots. Partly cloudy. Waves 1 to 3 feet building to 2 to 4 feet. Winds and waves higher in and near thunderstorms. $$  054 FZUS53 KMKX 092010 NSHMKX Nearshore Marine Forecast National Weather Service Milwaukee/Sullivan WI 310 PM CDT Thu Jul 9 2026 For waters within five nautical miles of shore on Lake Michigan LMZ643-100900- Sheboygan to Port Washington WI- 310 PM CDT Thu Jul 9 2026 .THROUGH EARLY EVENING...Northeast wind 5 to 10 knots. Mostly cloudy with scattered showers and isolated thunderstorms. Waves around 1 foot. .TONIGHT...Northeast wind 5 to 10 knots backing north late in the evening, then becoming north 5 to 10 knots after midnight. Isolated showers in the evening. patchy fog in the evening. Patchy fog after midnight. Waves around 1 foot. .FRIDAY...North wind 5 to 10 knots becoming northeast 10 to 15 knots late in the morning, then easing to 5 to 10 knots in the afternoon. Mostly sunny. Waves around 1 foot. .FRIDAY NIGHT...North wind 5 to 10 knots. Mostly clear. Waves around 1 foot. .SATURDAY...Northeast wind 5 to 10 knots veering east early in the afternoon, then backing northeast late in the afternoon. Sunny. Waves around 1 foot. $$ LMZ644-100900- Port Washington to North Point Light WI- 310 PM CDT Thu Jul 9 2026 .THROUGH EARLY EVENING...East wind 5 to 10 knots backing northeast late in the afternoon. Mostly cloudy with scattered showers and thunderstorms. Waves around 1 foot. .TONIGHT...Northeast wind 5 to 10 knots backing north late in the evening, then becoming north 5 to 10 knots after midnight. Scattered showers and thunderstorms in the evening. Isolated showers late in the evening. patchy fog through the night. Waves around 1 foot. .FRIDAY...North wind 10 to 15 knots veering northeast late in the morning, then becoming northeast 10 to 15 knots early in the afternoon easing to 5 to 10 knots late in the afternoon. Patchy fog in the morning. Waves 1 to 2 feet. .FRIDAY NIGHT...North wind 5 to 10 knots. Partly cloudy. Waves around 1 foot. .SATURDAY...Northeast wind 5 to 10 knots. Mostly sunny. Waves around 1 foot. $$ LMZ645-100900- North Point Light to Wind Point WI- 310 PM CDT Thu Jul 9 2026 .THROUGH EARLY EVENING...Southeast wind 5 to 10 knots backing east late in the afternoon. Mostly cloudy with scattered showers and thunderstorms. Waves around 1 foot. .TONIGHT...Northeast wind 5 to 10 knots backing north after midnight. Scattered showers and thunderstorms in the evening, then isolated showers and thunderstorms late in the evening. patchy fog in the late evening and overnight. Waves around 1 foot. .FRIDAY...North wind 10 to 15 knots veering northeast in the late morning and afternoon. Patchy fog in the morning. Waves 1 to 2 feet. .FRIDAY NIGHT...North wind 10 to 15 knots easing to 5 to 10 knots late in the evening, then becoming north 5 to 10 knots after midnight. Partly cloudy. Waves 1 to 2 feet. .SATURDAY...Northeast wind 5 to 10 knots. Partly sunny. Waves around 1 foot. $$ LMZ646-100900- Wind Point WI to Winthrop Harbor IL- 310 PM CDT Thu Jul 9 2026 .THROUGH EARLY EVENING...South wind 5 to 10 knots backing southeast late in the afternoon. Mostly cloudy with scattered showers and thunderstorms. Waves around 1 foot. .TONIGHT...Northeast wind 5 to 10 knots backing north after midnight. Scattered showers and thunderstorms in the evening, then isolated showers and thunderstorms late in the evening. patchy fog early in the morning. Waves around 1 foot. .FRIDAY...North wind 10 to 15 knots veering northeast in the late morning and afternoon. Patchy fog in the morning. Waves 1 to 2 feet. .FRIDAY NIGHT...North wind 10 to 15 knots easing to 5 to 10 knots late in the evening, then becoming north 5 to 10 knots after midnight. Partly cloudy. Waves 1 to 2 feet. .SATURDAY...Northeast wind 5 to 10 knots. Partly sunny. Waves 1 to 2 feet. $$ See Lake Michigan Open Waters Forecast for Sunday through Tuesday.  270 FZUS53 KLOT 092033 NSHLOT Nearshore Marine Forecast National Weather Service Chicago/Romeoville IL 333 PM CDT Thu Jul 9 2026 For waters within five nautical miles of shore on Lake Michigan Waves are provided as a range of significant wave heights, which is the average of the highest 1/3 of the waves, along with the average height of the highest 10 percent of the waves which will occasionally be encountered. LMZ740>742-100330- Winthrop Harbor to Wilmette Harbor IL- Wilmette Harbor to Northerly Island IL- Northerly Island to Calumet Harbor IL- 333 PM CDT Thu Jul 9 2026 .LATE THIS AFTERNOON...Variable winds 5 to 10 kt becoming east. Scattered showers with isolated thunderstorms. Waves around 1 ft. .TONIGHT...Northeast winds 5 to 10 kt becoming north late. Scattered showers. Isolated thunderstorms in the evening and then a slight chance of thunderstorms overnight. Areas of fog after midnight. Waves 1 to 2 ft. .FRIDAY...North winds 10 to 15 kt. Areas of fog in the morning. Waves 1 to 3 ft. .FRIDAY NIGHT...North winds 10 to 15 kt. Mostly cloudy in the evening, then becoming partly cloudy. Waves 1 to 3 ft. .SATURDAY...Northeast winds 10 to 15 kt. Partly cloudy. Waves 1 to 2 ft. $$ LMZ743>745-100330- Calumet Harbor IL to Gary IN-Gary to Burns Harbor IN- Burns Harbor to Michigan City IN- 333 PM CDT Thu Jul 9 2026 .LATE THIS AFTERNOON...Variable winds 5 to 10 kt. Scattered showers with isolated thunderstorms. Waves around 1 ft. .TONIGHT...North winds 5 to 10 kt. Scattered showers. Isolated thunderstorms in the evening and then a slight chance of thunderstorms overnight. Areas of fog after midnight. Waves around 1 ft. .FRIDAY...Northeast winds 5 to 10 kt becoming north 10 to 15 kt. Areas of fog in the morning. Slight chance of showers in the morning. Waves 1 to 3 ft. .FRIDAY NIGHT...North winds 10 to 15 kt. Mostly cloudy. Waves 1 to 3 ft. .SATURDAY...Northeast winds 10 to 15 kt. Mostly cloudy in the morning, then becoming partly cloudy. Waves 1 to 3 ft. $$ RC  634 FZUS53 KDLH 092042 NSHDLH Nearshore Marine Forecast National Weather Service Duluth MN 342 PM CDT Thu Jul 9 2026 For waters within five nautical miles of shore on Lake Superior. Waves are the significant wave height - the average of the highest 1/3 of the wave spectrum. Occasional wave height is the average of the highest 1/10 of the wave spectrum. LSZ140-100400- Grand Portage to Grand Marais MN- 342 PM CDT Thu Jul 9 2026 .TONIGHT...West wind 5 knots becoming northwest in the late evening and overnight. Patchy fog in the late evening and overnight. Waves 1 foot or less. .FRIDAY...Southeast wind 5 knots. Mostly sunny. Waves 1 foot or less. .FRIDAY NIGHT...Southeast wind 5 knots becoming northeast in the late evening and overnight. Chance of rain showers and slight chance of thunderstorms after midnight. Waves 1 foot or less. .SATURDAY...East wind 5 knots becoming south in the late morning and afternoon. Slight chance of showers and thunderstorms in the morning. Waves 1 foot or less. $$ LSZ141-100400- Grand Marais to Taconite Harbor MN- 342 PM CDT Thu Jul 9 2026 .TONIGHT...North wind 5 knots becoming east late in the evening, then becoming variable 10 knots or less after midnight. Patchy fog in the late evening and overnight. Waves 1 foot or less. .FRIDAY...Variable winds 10 knots or less becoming east 5 knots in the late morning and afternoon. Mostly sunny. Waves 1 foot or less. .FRIDAY NIGHT...Northeast wind 5 knots early in the evening becoming variable 10 knots or less. Slight chance of rain showers in the evening. Chance of rain showers after midnight. Waves 1 foot or less. .SATURDAY...North wind 5 knots becoming south in the late morning and early afternoon, then becoming variable 10 knots or less late in the afternoon. Partly sunny in the morning then clearing. Waves 1 foot or less. $$ LSZ142-100400- Taconite Harbor to Silver Bay Harbor MN- 342 PM CDT Thu Jul 9 2026 .TONIGHT...Variable winds 10 knots or less becoming east 5 knots late in the evening, then becoming variable 10 knots or less after midnight. Patchy fog in the late evening and overnight. Waves 1 foot or less. .FRIDAY...East wind 5 knots. Mostly sunny. Waves 1 foot or less. .FRIDAY NIGHT...Northeast wind 5 knots early in the evening becoming variable 10 knots or less. Partly cloudy in the evening then becoming mostly cloudy. Waves 1 foot or less. .SATURDAY...Variable winds 10 knots or less. Partly sunny in the morning then clearing. Waves 1 foot or less. $$ LSZ143-100400- Silver Bay Harbor to Two Harbors MN- 342 PM CDT Thu Jul 9 2026 .TONIGHT...Northeast wind 5 knots. Patchy fog late in the night. Waves 1 foot or less. .FRIDAY...Northeast wind 5 knots. Mostly sunny. Waves 1 foot or less. .FRIDAY NIGHT...Northeast wind 5 to 10 knots in the evening becoming variable 10 knots or less. Partly cloudy in the evening then becoming mostly cloudy. Waves 1 foot or less. .SATURDAY...Variable winds 10 knots or less becoming southeast 5 knots in the late morning and early afternoon, then becoming variable 10 knots or less late in the afternoon. Mostly sunny. Waves 1 foot or less. $$ LSZ144-100400- Two Harbors to Duluth MN- 342 PM CDT Thu Jul 9 2026 .TONIGHT...Northeast wind 5 knots. Patchy fog late in the night. Waves 1 foot or less. .FRIDAY...East wind 5 to 10 knots. Mostly sunny. Waves 1 foot or less. .FRIDAY NIGHT...Northeast wind 5 to 10 knots until early morning becoming variable 10 knots or less. Partly cloudy. Waves 1 foot or less. .SATURDAY...Variable winds 10 knots or less becoming southeast 5 knots in the late morning and afternoon. Mostly sunny. Waves 1 foot or less. $$ LSZ145-100400- Duluth MN to Port Wing WI- 342 PM CDT Thu Jul 9 2026 .TONIGHT...Northeast wind 5 knots. Patchy fog after midnight.Waves 1 foot or less. .FRIDAY...Northeast wind 5 to 10 knots. Patchy fog in the morning. Waves 1 foot or less. .FRIDAY NIGHT...Northeast wind 5 to 10 knots until early morning becoming variable 10 knots or less. Partly cloudy. Waves 1 foot or less. .SATURDAY...Variable winds 10 knots or less becoming east 5 knots in the late morning and afternoon. Sunny. Waves 1 foot or less. $$ LSZ146-100400- Port Wing to Sand Island WI- 342 PM CDT Thu Jul 9 2026 .TONIGHT...Northeast wind 5 knots. Patchy fog in the late evening and overnight. Waves 1 foot or less. .FRIDAY...Northeast wind 5 to 10 knots. Patchy fog in the morning. Waves 1 foot or less. .FRIDAY NIGHT...Northeast wind 5 knots in the evening becoming variable 10 knots or less. Partly cloudy. Waves 1 foot or less. .SATURDAY...Variable winds 10 knots or less. Mostly sunny. Waves 1 foot or less. $$ LSZ147-100400- Sand Island to Bayfield WI- 342 PM CDT Thu Jul 9 2026 .TONIGHT...East wind 5 knots. Patchy fog in the late evening and overnight. Waves 1 foot or less. .FRIDAY...East wind 5 knots. Patchy fog in the morning. Waves 1 foot or less. .FRIDAY NIGHT...East wind 5 knots early in the evening becoming variable 10 knots or less. Partly cloudy. Waves 1 foot or less. .SATURDAY...Variable winds 10 knots or less becoming east 5 knots in the afternoon. Mostly sunny. Waves 1 foot or less. $$ LSZ150-100400- Outer Apostle Islands Beyond 5 NM from Mainland- 342 PM CDT Thu Jul 9 2026 .TONIGHT...Northeast wind 5 knots becoming east late in the night. Patchy fog in the late evening and early morning. Areas of dense fog late in the night. Waves 1 foot or less. .FRIDAY...East wind 5 to 10 knots. Patchy fog in the morning. Waves 1 foot or less. .FRIDAY NIGHT...East wind 5 knots becoming northeast late in the evening, then becoming variable 10 knots or less after midnight. Mostly cloudy. Waves 1 foot or less. .SATURDAY...Variable winds 10 knots or less becoming east 5 knots in the afternoon. Mostly sunny. Waves 1 foot or less. $$ LSZ121-100400- Chequamegon Bay-Bayfield to Oak Point WI- 342 PM CDT Thu Jul 9 2026 .TONIGHT...Northeast wind 5 knots in the evening becoming variable 10 knots or less. Patchy fog late in the night. Waves 1 foot or less. .FRIDAY...Variable winds 10 knots or less becoming northeast 5 to 10 knots in the afternoon. Mostly sunny. Waves 1 foot or less. .FRIDAY NIGHT...Northeast wind 5 knots early in the evening becoming variable 10 knots or less. Partly cloudy. Waves 1 foot or less. .SATURDAY...Variable winds 10 knots or less becoming south 5 knots late in the morning, then becoming southeast early in the afternoon becoming east late in the afternoon. Slight chance of showers and thunderstorms in the afternoon. Waves 1 foot or less. $$ LSZ148-100400- Oak Point to Saxon Harbor WI- 342 PM CDT Thu Jul 9 2026 .TONIGHT...Northeast wind 5 knots in the evening becoming variable 10 knots or less. Patchy fog after midnight. Areas of dense fog late in the night. Waves 1 foot or less. .FRIDAY...Northeast wind 5 to 10 knots. Patchy fog in the morning. Waves 1 foot or less. .FRIDAY NIGHT...East wind 5 knots early in the evening becoming variable 10 knots or less, then becoming south 5 knots early in the morning. Partly cloudy. Waves 1 foot or less. .SATURDAY...Southwest wind 5 knots becoming east in the afternoon. Mostly sunny. Waves 1 foot or less. $$ Graphical marine forecasts are available online at: weather.gov/greatlakes WFO DLH