FZUS53 KDLH 250617 NSHDLH Nearshore Marine Forecast National Weather Service Duluth MN 117 AM CDT Mon May 25 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. LSZ140-251600- Grand Portage to Grand Marais MN- 117 AM CDT Mon May 25 2026 .TODAY...South wind 10 to 15 knots with gusts to around 20 knots. Patchy fog in the morning. Chance of sprinkles in the late morning and early afternoon. Slight chance of showers and thunderstorms late in the afternoon. Waves 1 to 2 feet. .TONIGHT...Southwest wind 10 to 15 knots with gusts to around 20 knots becoming west after midnight. Chance of rain showers and slight chance of thunderstorms in the evening. Waves 1 to 2 feet. .TUESDAY...Northwest wind 5 knots becoming southeast late in the morning, then becoming south in the afternoon. Mostly sunny. Waves 1 foot or less. .TUESDAY NIGHT...Southwest wind 5 knots becoming northeast in the late evening and overnight. Partly cloudy. Waves 1 foot or less. $$ LSZ141-251600- Grand Marais to Taconite Harbor MN- 117 AM CDT Mon May 25 2026 .TODAY...North wind 5 knots becoming south in the late morning and afternoon. Patchy fog in the morning. Chance of sprinkles late in the morning. Slight chance of showers and thunderstorms late in the afternoon. Waves 1 foot or less. .TONIGHT...West wind 5 knots. Chance of rain showers and slight chance of thunderstorms in the evening. Waves 1 foot or less. .TUESDAY...Northwest wind 5 knots becoming southeast in the late morning and early afternoon, then becoming variable 10 knots or less late in the afternoon. Sunny. Waves 1 foot or less. .TUESDAY NIGHT...Variable winds 10 knots or less becoming northeast 5 knots after midnight. Partly cloudy. Waves 1 foot or less. $$ LSZ142-251600- Taconite Harbor to Silver Bay Harbor MN- 117 AM CDT Mon May 25 2026 .TODAY...Variable winds 10 knots or less. Patchy fog early in the morning. Chance of sprinkles in the morning. Slight chance of showers and thunderstorms late in the afternoon. Waves 1 foot or less. .TONIGHT...Variable winds 10 knots or less becoming west 5 knots in the late evening and overnight. Chance of showers and thunderstorms in the evening. Waves 1 foot or less. .TUESDAY...North wind 5 knots early in the morning becoming variable 10 knots or less. Sunny. Waves 1 foot or less. .TUESDAY NIGHT...Variable winds 10 knots or less becoming northeast 5 knots early in the morning. Partly cloudy. Waves 1 foot or less. $$ LSZ143-251600- Silver Bay Harbor to Two Harbors MN- 117 AM CDT Mon May 25 2026 .TODAY...Variable winds 10 knots or less becoming southwest 5 knots in the late morning and afternoon. Chance of rain showers early in the morning, then chance of sprinkles late in the morning. Waves 1 foot or less. .TONIGHT...Southwest wind 5 knots becoming west after midnight. Slight chance of showers and thunderstorms in the evening. Waves 1 foot or less. .TUESDAY...Variable winds 10 knots or less becoming northeast 5 knots in the afternoon. Mostly sunny. Waves 1 foot or less. .TUESDAY NIGHT...Northeast wind 5 knots. Slight chance of rain showers. Waves 1 foot or less. $$ LSZ144-251600- Two Harbors to Duluth MN- 117 AM CDT Mon May 25 2026 .TODAY...Southwest wind 5 to 10 knots. Patchy fog early in the morning. Slight chance of rain showers early in the morning, then chance of sprinkles late in the morning. Waves 1 foot or less. .TONIGHT...Southwest wind 5 knots becoming northwest early in the morning. Slight chance of showers and thunderstorms in the evening. Waves 1 foot or less. .TUESDAY...North wind 5 knots becoming northeast in the late morning and afternoon. Sunny. Waves 1 foot or less. .TUESDAY NIGHT...Northeast wind 5 knots. Slight chance of thunderstorms in the evening. Chance of rain showers through the night. Waves 1 foot or less. $$ LSZ145-251600- Duluth MN to Port Wing WI- 117 AM CDT Mon May 25 2026 .TODAY...Southwest wind 5 to 10 knots. Patchy fog early in the morning. Slight chance of rain showers early in the morning, then chance of sprinkles late in the morning. Waves 1 foot or less. .TONIGHT...Southwest wind 5 to 10 knots becoming west early in the morning. Slight chance of showers and thunderstorms in the evening. Waves 1 foot or less. .TUESDAY...Northeast wind 5 knots. Mostly sunny. Waves 1 foot or less. .TUESDAY NIGHT...Northeast wind 5 knots. Slight chance of thunderstorms in the evening. Chance of rain showers through the night. Waves 1 foot or less. $$ LSZ146-251600- Port Wing to Sand Island WI- 117 AM CDT Mon May 25 2026 .TODAY...Southwest wind 5 knots. Chance of rain showers early in the morning, then chance of sprinkles late in the morning. Waves 1 foot or less. .TONIGHT...Southwest wind 5 to 10 knots. Slight chance of showers and thunderstorms in the evening. Waves 1 foot or less. .TUESDAY...Variable winds 10 knots or less becoming northeast 5 knots in the afternoon. Mostly sunny. Waves 1 foot or less. .TUESDAY NIGHT...Northeast wind 5 knots. Slight chance of rain showers. Waves 1 foot or less. $$ LSZ147-251600- Sand Island to Bayfield WI- 117 AM CDT Mon May 25 2026 .TODAY...Southwest wind 5 knots. Chance of rain showers in the morning. Waves 1 foot or less. .TONIGHT...Southwest wind 5 knots becoming west early in the morning. Slight chance of showers and thunderstorms in the evening. Waves 1 foot or less. .TUESDAY...Variable winds 10 knots or less becoming northeast 5 knots in the afternoon. Mostly sunny. Waves 1 foot or less. .TUESDAY NIGHT...Variable winds 10 knots or less becoming northeast 5 knots early in the morning. Mostly cloudy. Waves 1 foot or less. $$ LSZ150-251600- Outer Apostle Islands Beyond 5 NM from Mainland- 117 AM CDT Mon May 25 2026 .TODAY...Southwest wind 5 knots. Chance of sprinkles in the morning. Waves 1 foot or less. .TONIGHT...Southwest wind 5 to 10 knots becoming west early in the morning. Slight chance of showers and thunderstorms in the evening. Waves 1 foot or less. .TUESDAY...Northwest wind 5 knots becoming northeast in the late morning and afternoon. Mostly sunny. Waves 1 foot or less. .TUESDAY NIGHT...Northeast wind 5 to 10 knots. Mostly cloudy in the evening then becoming partly cloudy. Waves 1 foot or less. $$ LSZ121-251600- Chequamegon Bay-Bayfield to Oak Point WI- 117 AM CDT Mon May 25 2026 .TODAY...Southwest wind 5 to 10 knots. Chance of rain showers in the morning. Waves 1 foot or less. .TONIGHT...Southwest wind 5 to 10 knots. Slight chance of showers and thunderstorms in the evening. Waves 1 foot or less. .TUESDAY...Variable winds 10 knots or less becoming northeast 5 knots in the late morning and afternoon. Mostly sunny. Waves 1 foot or less. .TUESDAY NIGHT...Northeast wind 5 knots early in the evening becoming variable 10 knots or less, then becoming northeast 5 knots early in the morning. Slight chance of rain showers through the night. Waves 1 foot or less. $$ LSZ148-251600- Oak Point to Saxon Harbor WI- 117 AM CDT Mon May 25 2026 .TODAY...Southwest wind 5 to 10 knots. Chance of rain showers in the morning. Waves 1 foot or less. .TONIGHT...Southwest wind 5 to 10 knots. Slight chance of showers and thunderstorms in the evening. Waves 1 foot or less. .TUESDAY...Variable winds 10 knots or less becoming northeast 5 knots in the late morning and afternoon. Mostly sunny. Waves 1 foot or less. .TUESDAY NIGHT...Northeast wind 5 knots early in the evening becoming variable 10 knots or less, then becoming northeast 5 knots early in the morning. Slight chance of rain showers through the night. Waves 1 foot or less. $$ Graphical marine forecasts are available online at: weather.gov/greatlakes WFO DLH