FZUS53 KDLH 231822 NSHDLH Nearshore Marine Forecast National Weather Service Duluth MN 122 PM 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. LSZ140-232200- Grand Portage to Grand Marais MN- 122 PM CDT Sun Aug 23 2026 .REST OF TODAY...Southwest wind 5 to 10 knots. Sunny. Waves 1 foot or less. .TONIGHT...Southwest wind 5 to 10 knots becoming northwest early in the morning. Mostly clear. Waves 1 foot or less. .MONDAY...North wind 5 to 10 knots becoming southwest in the afternoon. Mostly sunny. Waves 1 foot or less. .MONDAY NIGHT...Southwest wind 5 to 10 knots. Mostly cloudy. Waves 1 foot or less. $$ LSZ141-232200- Grand Marais to Taconite Harbor MN- 122 PM CDT Sun Aug 23 2026 .REST OF TODAY...Southwest wind 5 to 10 knots. Sunny. Waves 1 foot or less. .TONIGHT...Southwest wind 5 knots becoming north after midnight. Partly cloudy. Waves 1 foot or less. .MONDAY...North wind 5 knots early in the morning becoming variable 10 knots or less, then becoming southwest 5 knots in the afternoon. Mostly sunny. Waves 1 foot or less. .MONDAY NIGHT...Variable winds 10 knots or less. Mostly cloudy. Waves 1 foot or less. $$ LSZ142-232200- Taconite Harbor to Silver Bay Harbor MN- 122 PM CDT Sun Aug 23 2026 .REST OF TODAY...South wind 5 knots. Sunny. Waves 1 foot or less. .TONIGHT...Southwest wind 5 knots early in the evening becoming variable 10 knots or less. Mostly clear. Waves 1 foot or less. .MONDAY...Variable winds 10 knots or less. Mostly sunny. Waves 1 foot or less. .MONDAY NIGHT...Variable winds 10 knots or less. Slight chance of rain showers after midnight. Waves 1 foot or less. $$ LSZ143-232200- Silver Bay Harbor to Two Harbors MN- 122 PM CDT Sun Aug 23 2026 .REST OF TODAY...South wind 5 knots. Sunny. Waves 1 foot or less. .TONIGHT...North wind 5 knots in the evening becoming variable 10 knots or less. Partly cloudy. Waves 1 foot or less. .MONDAY...Variable winds 10 knots or less becoming east 5 knots in the afternoon. Partly sunny. Waves 1 foot or less. .MONDAY NIGHT...Northeast wind 5 knots. Slight chance of rain showers after midnight. Waves 1 foot or less. $$ LSZ144-232200- Two Harbors to Duluth MN- 122 PM CDT Sun Aug 23 2026 .REST OF TODAY...East wind 5 knots. Sunny. Waves 1 foot or less. .TONIGHT...Northeast wind 5 knots in the evening becoming variable 10 knots or less. Partly cloudy. Waves 1 foot or less. .MONDAY...Variable winds 10 knots or less becoming east 5 to 10 knots in the late morning and afternoon. Mostly sunny. Waves 1 foot or less. .MONDAY NIGHT...Northeast wind 5 to 10 knots. Slight chance of rain showers after midnight. Waves 1 foot or less. $$ LSZ145-232200- Duluth MN to Port Wing WI- 122 PM CDT Sun Aug 23 2026 .REST OF TODAY...East wind 5 knots. Sunny. Waves 1 foot or less. .TONIGHT...Northeast wind 5 knots in the evening becoming variable 10 knots or less. Mostly clear. Waves 1 foot or less. .MONDAY...Variable winds 10 knots or less becoming northeast 5 to 10 knots in the late morning and afternoon. Mostly sunny. Waves 1 foot or less. .MONDAY NIGHT...East wind 5 to 10 knots. Slight chance of rain showers after midnight. Waves 1 foot or less. $$ LSZ146-232200- Port Wing to Sand Island WI- 122 PM CDT Sun Aug 23 2026 .REST OF TODAY...East wind 5 knots early in the afternoon becoming variable 10 knots or less. Sunny. Waves 1 foot or less. .TONIGHT...East wind 5 knots early in the evening becoming variable 10 knots or less. Mostly clear. Waves 1 foot or less. .MONDAY...Variable winds 10 knots or less becoming northeast 5 knots in the afternoon. Mostly sunny. Waves 1 foot or less. .MONDAY NIGHT...East wind 5 knots in the evening becoming variable 10 knots or less. Partly cloudy in the evening then becoming mostly cloudy. Waves 1 foot or less. $$ LSZ147-232200- Sand Island to Bayfield WI- 122 PM CDT Sun Aug 23 2026 .REST OF TODAY...East wind 5 knots becoming southeast late. Sunny. Waves 1 foot or less. .TONIGHT...South wind 5 knots early in the evening becoming variable 10 knots or less. Mostly clear. Waves 1 foot or less. .MONDAY...Variable winds 10 knots or less becoming northeast 5 knots early in the afternoon, then becoming east late in the afternoon. Mostly sunny. Waves 1 foot or less. .MONDAY NIGHT...Southeast wind 5 knots. Partly cloudy in the evening then becoming mostly cloudy. Waves 1 foot or less. $$ LSZ150-232200- Outer Apostle Islands Beyond 5 NM from Mainland- 122 PM CDT Sun Aug 23 2026 .REST OF TODAY...Southeast wind 5 knots becoming south late. Sunny. Waves 1 foot or less. .TONIGHT...Southwest wind 5 knots becoming northwest after midnight. Mostly clear. Waves 1 foot or less. .MONDAY...North wind 5 knots becoming southeast late in the afternoon. Mostly sunny. Waves 1 foot or less. .MONDAY NIGHT...Southeast wind 5 knots. Partly cloudy in the evening then becoming mostly cloudy. Waves 1 foot or less. $$ LSZ121-232200- Chequamegon Bay-Bayfield to Oak Point WI- 122 PM CDT Sun Aug 23 2026 .REST OF TODAY...East wind 5 to 10 knots. Sunny. Waves 1 foot or less. .TONIGHT...Southeast wind 5 knots early in the evening becoming variable 10 knots or less. Mostly clear. Waves 1 foot or less. .MONDAY...Variable winds 10 knots or less becoming east 5 knots in the afternoon. Mostly sunny. Waves 1 foot or less. .MONDAY NIGHT...East wind 5 knots in the evening becoming variable 10 knots or less, then becoming south 5 knots early in the morning. Partly cloudy in the evening then becoming mostly cloudy. Waves 1 foot or less. $$ LSZ148-232200- Oak Point to Saxon Harbor WI- 122 PM CDT Sun Aug 23 2026 .REST OF TODAY...East wind 5 to 10 knots. 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. Mostly sunny. Waves 1 foot or less. .MONDAY NIGHT...East 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