FZUS53 KDLH 210936

NSHDLH



Nearshore Marine Forecast

National Weather Service Duluth MN

435 AM CDT Sun Jun 21 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.



LSZ140-211600-

Grand Portage to Grand Marais MN-

435 AM CDT Sun Jun 21 2026



.TODAY...North wind 5 knots becoming east late in the morning,

then becoming south early in the afternoon becoming southwest

late in the afternoon. Mostly sunny. Waves 1 foot or less. 

.TONIGHT...West wind 5 knots becoming north in the late evening

and overnight. Partly cloudy. Waves 1 foot or less. 

.MONDAY...North wind 5 knots becoming northeast late in the

morning, then becoming southwest in the afternoon. Mostly sunny.

Waves 1 foot or less. 

.MONDAY NIGHT...West wind 5 to 10 knots becoming northwest after

midnight. Partly cloudy. Waves 1 foot or less. 



$$



LSZ141-211600-

Grand Marais to Taconite Harbor MN-

435 AM CDT Sun Jun 21 2026



.TODAY...North wind 5 knots early in the morning becoming east,

then becoming southeast early in the afternoon becoming variable

10 knots or less. Mostly sunny. Waves 1 foot or less. 

.TONIGHT...Variable winds 10 knots or less becoming north 5 knots

early in the morning. Patchy fog after midnight. Waves 1 foot or

less. 

.MONDAY...North wind 5 knots becoming southeast late in the

morning, then becoming southwest early in the afternoon becoming

west late in the afternoon. Mostly sunny. Waves 1 foot or less. 

.MONDAY NIGHT...Variable winds 10 knots or less. Partly cloudy in

the evening then becoming mostly cloudy. Waves 1 foot or less. 



$$



LSZ142-211600-

Taconite Harbor to Silver Bay Harbor MN-

435 AM CDT Sun Jun 21 2026



.TODAY...North wind 5 knots early in the morning becoming

variable 10 knots or less. Mostly sunny. Waves 1 foot or less. 

.TONIGHT...Variable winds 10 knots or less. Partly cloudy. 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. Partly cloudy in

the evening then becoming mostly cloudy. Waves 1 foot or less. 



$$



LSZ143-211600-

Silver Bay Harbor to Two Harbors MN-

435 AM CDT Sun Jun 21 2026



.TODAY...Variable winds 10 knots or less. Sunny. Waves 1 foot or

less. 

.TONIGHT...Northeast wind 5 knots until early morning becoming

variable 10 knots or less. Partly cloudy. 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. Partly cloudy in

the evening then becoming mostly cloudy. Waves 1 foot or less. 



$$



LSZ144-211600-

Two Harbors to Duluth MN-

435 AM CDT Sun Jun 21 2026



.TODAY...North wind 5 knots becoming east in the late morning and

afternoon. Sunny. Waves 1 foot or less. 

.TONIGHT...Northeast wind 5 knots until early morning 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 late morning and afternoon. Mostly sunny. Waves 1 foot or

less. 

.MONDAY NIGHT...Northeast 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. 



$$



LSZ145-211600-

Duluth MN to Port Wing WI-

435 AM CDT Sun Jun 21 2026



.TODAY...Northeast wind 5 knots. Sunny. Waves 1 foot or less. 

.TONIGHT...Northeast wind 5 knots. Partly cloudy. Waves 1 foot or

less. 

.MONDAY...Variable winds 10 knots or less becoming northeast

5 knots in the late morning and afternoon. Mostly sunny. Waves

1 foot or less. 

.MONDAY NIGHT...Northeast 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. 



$$



LSZ146-211600-

Port Wing to Sand Island WI-

435 AM CDT Sun Jun 21 2026



.TODAY...Variable winds 10 knots or less becoming northeast

5 knots late in the afternoon. Sunny. Waves 1 foot or less. 

.TONIGHT...Northeast wind 5 knots until early morning becoming

variable 10 knots or less. Patchy fog after midnight. Waves

1 foot or less. 

.MONDAY...Variable winds 10 knots or less becoming northeast

5 knots late in the afternoon. Patchy fog in the morning. Waves

1 foot or less. 

.MONDAY NIGHT...East 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. 



$$



LSZ147-211600-

Sand Island to Bayfield WI-

435 AM CDT Sun Jun 21 2026



.TODAY...Variable winds 10 knots or less becoming northeast

5 knots early in the afternoon, then becoming east late in the

afternoon. Sunny. Waves 1 foot or less. 

.TONIGHT...Variable winds 10 knots or less. Patchy fog after

midnight. 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...Variable winds 10 knots or less. Partly cloudy in

the evening then becoming mostly cloudy. Waves 1 foot or less. 



$$



LSZ150-211600-

Outer Apostle Islands Beyond 5 NM from Mainland-

435 AM CDT Sun Jun 21 2026



.TODAY...Variable winds 10 knots or less becoming east 5 knots in

the afternoon. Sunny. Waves 1 foot or less. 

.TONIGHT...Northeast 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. 

.MONDAY...Variable winds 10 knots or less becoming northeast

5 knots early in the afternoon, then becoming east late in the

afternoon. Patchy fog in the morning. Waves 1 foot or less. 

.MONDAY NIGHT...Variable winds 10 knots or less. Mostly cloudy.

Waves 1 foot or less. 



$$



LSZ121-211600-

Chequamegon Bay-Bayfield to Oak Point WI-

435 AM CDT Sun Jun 21 2026



.TODAY...Variable winds 10 knots or less becoming northeast

5 knots in the late morning and afternoon. 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 northeast

5 knots in the late morning and afternoon. Mostly sunny. Waves

1 foot or less. 

.MONDAY NIGHT...East 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. 



$$



LSZ148-211600-

Oak Point to Saxon Harbor WI-

435 AM CDT Sun Jun 21 2026



.TODAY...Variable winds 10 knots or less becoming northeast

5 knots in the late morning and afternoon. 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 northeast

5 knots in the late morning and early afternoon, then becoming

east late in the afternoon. Mostly sunny. Waves 1 foot or less. 

.MONDAY NIGHT...East wind 5 knots early in the evening becoming

variable 10 knots or less. Mostly cloudy. Waves 1 foot or less. 



$$



Graphical marine forecasts are available online at: 

weather.gov/greatlakes 



WFO DLH