• CLASSIC IWINDSURF
    Classic myiWindsurfClassic Wind & Weather maps and graphs
Hello Guest
 • 

Classic iWindsurf
kiter? see iKitesurf.com
Grab the iWindsurf Mobile App & Sign On to the New iWindsurf Website
Hi guest · Get your free membership now · Log In ·
WI - MN / IA

Real-Time Data
 > Dynamic Map
 > Wind Obs Map
 > Radar + Satellite Map
 > Wind Obs Summary

Computer Forecasts
 > Model Tables
 > Wind Vector Fx Map
 > Wind FlowViz Fx Map

More Maps

Other Resources
Wind Graphs
Meteograms

Watches/Warnings
>None Active

New iWindsurf: Select your region for wind observations & forecasts:
North America | Europe | South America | Australia & Oceania | Asia | Africa

fzus53 kdlh 252218
nshdlh
expires:202607260400;;601187

nearshore marine forecast
national weather service duluth mn
517 pm cdt sat jul 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.


lsz148-260400-
oak point to saxon harbor wi-
517 pm cdt sat jul 25 2026

.tonight...southeast wind 5 knots early in the evening becoming
variable 10 knots or less, then becoming south 5 knots late in
the night. mostly clear. waves 1 foot or less. 
.sunday...southeast wind 5 knots becoming northeast in the
afternoon. mostly sunny. waves 1 foot or less. 
.sunday night...northeast wind 5 knots. chance of showers and
thunderstorms. waves 1 foot or less. 
.monday...northeast wind 5 to 10 knots. chance of showers and
slight chance of thunderstorms. waves 1 to 2 feet. 

$$
fzus53 kdlh 252218
nshdlh
expires:202607260400;;601183

nearshore marine forecast
national weather service duluth mn
517 pm cdt sat jul 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.


lsz146-260400-
port wing to sand island wi-
517 pm cdt sat jul 25 2026

.tonight...southwest wind 5 knots early in the evening becoming
variable 10 knots or less. mostly clear. waves 1 foot or less. 
.sunday...variable winds 10 knots or less becoming northeast
5 knots in the late morning and afternoon. mostly sunny. waves
1 foot or less. 
.sunday night...northeast wind 5 knots. chance of rain showers
and slight chance of thunderstorms. waves 1 foot or less. 
.monday...northeast wind 5 to 10 knots. slight chance of
thunderstorms in the morning. chance of rain showers through the
day. waves 1 foot or less. 

$$
fzus53 kdlh 252218
nshdlh
expires:202607260400;;601184

nearshore marine forecast
national weather service duluth mn
517 pm cdt sat jul 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.


lsz147-260400-
sand island to bayfield wi-
517 pm cdt sat jul 25 2026

.tonight...southwest wind 5 knots early in the evening becoming
variable 10 knots or less. mostly clear. waves 1 foot or less. 
.sunday...variable winds 10 knots or less becoming east 5 knots
in the late morning and early afternoon, then becoming northeast
late in the afternoon. mostly sunny. waves 1 foot or less. 
.sunday night...northeast wind 5 knots. chance of showers and
thunderstorms. waves 1 foot or less. 
.monday...northeast wind 5 to 10 knots. chance of rain showers
and slight chance of thunderstorms through the day. waves 1 foot
or less. 

$$
fzus53 kdlh 252218
nshdlh
expires:202607260400;;601186

nearshore marine forecast
national weather service duluth mn
517 pm cdt sat jul 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.


lsz121-260400-
chequamegon bay-bayfield to oak point wi-
517 pm cdt sat jul 25 2026

.tonight...southeast wind 5 knots early in the evening becoming
variable 10 knots or less. mostly clear. waves 1 foot or less. 
.sunday...southeast wind 5 knots becoming northeast in the
afternoon. mostly sunny. waves 1 foot or less. 
.sunday night...northeast wind 5 knots. chance of showers and
thunderstorms. waves 1 foot or less. 
.monday...northeast wind 5 to 10 knots. chance of showers and
slight chance of thunderstorms through the day. waves 1 foot or
less. 

$$
fzus53 kdlh 252218
nshdlh
expires:202607260400;;601177

nearshore marine forecast
national weather service duluth mn
517 pm cdt sat jul 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.


lsz140-260400-
grand portage to grand marais mn-
517 pm cdt sat jul 25 2026

...dense fog advisory in effect until 9 pm cdt this evening...

.tonight...southwest wind 10 to 15 knots with gusts to around
20 knots becoming west 5 knots after midnight, then becoming
northwest late in the night. patchy fog early in the evening.
slight chance of rain showers late in the night. waves 1 to
2 feet. 
.sunday...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. 
.sunday night...northeast wind 5 to 10 knots. chance of rain
showers and slight chance of thunderstorms after midnight. waves
1 foot or less. 
.monday...northeast wind 5 to 10 knots. chance of thunderstorms
in the morning. chance of rain showers through the day. slight
chance of thunderstorms in the afternoon. waves 1 to 2 feet. 

$$
fzus53 kdlh 252218
nshdlh
expires:202607260400;;601178

nearshore marine forecast
national weather service duluth mn
517 pm cdt sat jul 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.


lsz141-260400-
grand marais to taconite harbor mn-
517 pm cdt sat jul 25 2026

...dense fog advisory in effect until 9 pm cdt this evening...

.tonight...west wind 5 to 10 knots in the evening becoming
variable 10 knots or less. patchy dense fog early in the evening.
waves 1 foot or less. 
.sunday...northeast wind 5 knots becoming southeast late in the
morning, then becoming southwest in the afternoon. slight chance
of showers and thunderstorms in the morning. waves 1 foot or
less. 
.sunday night...west wind 5 knots becoming northeast in the late
evening and overnight. slight chance of rain showers in the
evening, then chance of rain showers and slight chance of
thunderstorms after midnight. waves 1 foot or less. 
.monday...east wind 5 to 10 knots. chance of rain showers and
slight chance of thunderstorms. waves 1 to 2 feet. 

$$
fzus53 kdlh 252218
nshdlh
expires:202607260400;;601179

nearshore marine forecast
national weather service duluth mn
517 pm cdt sat jul 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.


lsz142-260400-
taconite harbor to silver bay harbor mn-
517 pm cdt sat jul 25 2026

...dense fog advisory in effect until 9 pm cdt this evening...

.tonight...west wind 5 knots early in the evening becoming
variable 10 knots or less. patchy fog late in the evening. waves
1 foot or less. 
.sunday...variable winds 10 knots or less becoming north 5 knots
late in the afternoon. slight chance of showers and thunderstorms
in the morning. waves 1 foot or less. 
.sunday night...variable winds 10 knots or less becoming
northeast 5 knots after midnight. chance of rain showers and
slight chance of thunderstorms. waves 1 foot or less. 
.monday...northeast wind 5 knots. chance of rain showers and
slight chance of thunderstorms. waves 1 foot or less. 

$$
fzus53 kdlh 252218
nshdlh
expires:202607260400;;601180

nearshore marine forecast
national weather service duluth mn
517 pm cdt sat jul 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.


lsz143-260400-
silver bay harbor to two harbors mn-
517 pm cdt sat jul 25 2026

...dense fog advisory in effect until 9 pm cdt this evening...

.tonight...southwest wind 5 to 10 knots early in the evening
becoming variable 10 knots or less. patchy fog late in the
evening. waves 1 foot or less. 
.sunday...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. 
.sunday night...northeast wind 5 to 10 knots. chance of rain
showers and slight chance of thunderstorms. waves 1 foot or less.
.monday...northeast wind 5 to 10 knots. gusts up to 20 knots late
in the afternoon. chance of rain showers and slight chance of
thunderstorms. waves 1 foot or less. 

$$
fzus53 kdlh 252218
nshdlh
expires:202607260400;;601181

nearshore marine forecast
national weather service duluth mn
517 pm cdt sat jul 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.


lsz144-260400-
two harbors to duluth mn-
517 pm cdt sat jul 25 2026

.tonight...northwest wind 5 to 10 knots early in the evening
becoming variable 10 knots or less. mostly clear. waves 1 foot or
less. 
.sunday...east wind 5 knots. slight chance of rain showers in the
afternoon. waves 1 foot or less. 
.sunday night...northeast wind 5 to 10 knots. chance of rain
showers and slight chance of thunderstorms. waves 1 foot or less.
.monday...northeast wind 5 to 10 knots. gusts up to 20 knots in
the afternoon. chance of rain showers and slight chance of
thunderstorms. waves 1 foot or less. 

$$
fzus53 kdlh 252218
nshdlh
expires:202607260400;;601182

nearshore marine forecast
national weather service duluth mn
517 pm cdt sat jul 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.


lsz145-260400-
duluth mn to port wing wi-
517 pm cdt sat jul 25 2026

.tonight...northwest wind 5 knots early in the evening becoming
variable 10 knots or less, then becoming east 5 knots late in the
night. mostly clear. waves 1 foot or less. 
.sunday...east wind 5 knots becoming northeast in the late
morning and afternoon. slight chance of rain showers in the
afternoon. waves 1 foot or less. 
.sunday night...northeast wind 5 to 10 knots. chance of
thunderstorms in the evening. chance of rain showers through the
night. slight chance of thunderstorms after midnight. waves
1 foot or less. 
.monday...northeast wind 5 to 10 knots. gusts up to 20 knots in
the afternoon. slight chance of thunderstorms in the morning.
slight chance of rain showers through the day. waves 1 to 2 feet.

$$
fzus53 kmqt 252102
nshmqt
expires:202607260800;;597944

nearshore marine forecast
national weather service marquette mi
502 pm edt sat jul 25 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.


lsz242-243-260800-
ontonagon to upper entrance of portage canal mi-
upper entrance of portage canal to eagle river mi-
502 pm edt sat jul 25 2026

.late this afternoon...southwest wind less than 10 knots. mostly
sunny. waves 2 to 3 feet subsiding to 1 to 2 feet. 
.tonight...south wind less than 10 knots. partly cloudy. waves
1 to 2 feet. 
.sunday...south wind less than 10 knots veering west by late
morning, then veering north late. partly cloudy. a slight chance
of showers and thunderstorms through mid morning. a slight chance
of showers and thunderstorms late. waves calm to 1 foot. 
.sunday night...northeast wind less than 10 knots. partly cloudy
with a slight chance of showers and thunderstorms in the evening,
then cloudy with a chance of showers after midnight. waves calm
to 1 foot. 
.monday...northeast wind 5 to 15 knots. partly cloudy. a chance
of showers and a slight chance of thunderstorms in the morning,
then a chance of showers and thunderstorms in the afternoon.
waves building to 1 to 2 feet. 

$$
fzus53 kmqt 252102
nshmqt
expires:202607260800;;597943

nearshore marine forecast
national weather service marquette mi
502 pm edt sat jul 25 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.


lsz240-241-260800-
saxon harbor wi to black river mi-
black river to ontonagon mi-
502 pm edt sat jul 25 2026 /402 pm cdt sat jul 25 2026/

.late this afternoon...southwest wind less than 10 knots. sunny.
waves calm to 1 foot. 
.tonight...variable wind less than 10 knots. mostly clear. waves
calm to 1 foot. 
.sunday...variable wind less than 10 knots becoming northwest
less than 10 knots late. mostly sunny. a slight chance of showers
and thunderstorms through mid morning. waves calm to 1 foot. 
.sunday night...northeast wind less than 10 knots. partly cloudy
with a slight chance of showers and thunderstorms in the evening,
then cloudy with a chance of showers after midnight. waves calm
to 1 foot. 
.monday...northeast wind less than 10 knots becoming 5 to
15 knots in the afternoon. partly cloudy. showers likely and a
chance of thunderstorms in the morning, then a chance of showers
and a slight chance of thunderstorms in the afternoon. waves
building to 1 to 2 feet. 

$$
© Copyright 2026 WeatherFlow, Inc · Contact Us ·