• 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 ·
IL- chicago area

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 kapx 021849
nshapx
expires:202609030300;;790735

nearshore marine forecast
national weather service gaylord mi
249 pm edt wed sep 2 2026

for waters within five nautical miles of shore on lakes huron...
michigan and 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.


lmz346-030300-
manistee to point betsie mi-
249 pm edt wed sep 2 2026

.tonight...light winds. patchy fog after midnight. slight chance
of showers and thunderstorms after midnight. waves 2 feet or
less. 
.thursday...northeast wind 5 to 10 knots. chance of showers and
slight chance of thunderstorms. waves 2 feet or less. 
.thursday night...light winds. chance of showers. waves 2 feet or
less. 
.friday...northeast wind 5 to 10 knots. partly sunny. waves
2 feet or less. 

winds and waves higher in the vicinity of thunderstorms.

see the open lakes forecast for days 3 through 5.

$$
fzus53 kgrb 021823
nshgrb
expires:202609022200;;788010

nearshore marine forecast
national weather service green bay wi
123 pm cdt wed sep 2 2026

for waters within five nautical miles of shore on lake michigan


lmz541>543-022200-
rock island passage to sturgeon bay wi-
sturgeon bay to two rivers wi-two rivers to sheboygan wi-
123 pm cdt wed sep 2 2026

.this afternoon...se wind 5 to 10 kts. waves 2 ft or less. partly
cloudy. 
.tonight...se wind 5 to 10 kts backing ne after midnight. waves
2 ft or less. patchy fog after midnight. a slight chance of
showers and thunderstorms after midnight. 
.thursday...ne wind 5 to 10 kts. waves 2 ft or less. patchy dense
fog in the morning. a chance of showers. 
.thursday night...e wind 5 to 10 kts. waves 2 ft or less. a
chance of showers in the evening. showers after midnight.  

$$
fzus53 kgrr 021933
nshgrr
expires:202609030800;;792372

nearshore marine forecast
national weather service grand rapids mi
333 pm edt wed sep 2 2026

for waters within five nautical miles of shore on lake michigan


lmz846-030800-
holland to grand haven mi-
333 pm edt wed sep 2 2026

.through early evening...southwest winds 10 to 15 knots. partly
sunny. waves 1 to 2 feet. 
.tonight...west winds 5 to 10 knots backing southeast in the late
evening and overnight. partly cloudy. a chance of thunderstorms and
a slight chance of rain showers after midnight. waves around 1 foot.
.thursday...southeast winds around 10 knots veering southwest in the
late morning and afternoon. mostly sunny with a chance of rain
showers and a slight chance of thunderstorms. waves 1 foot or less. 
.thursday night...northwest winds 5 to 10 knots veering east in the
late evening and overnight. partly cloudy with rain showers and a
chance of thunderstorms. waves less than 1 foot. 
.friday...east winds 5 to 10 knots veering south in the late morning
and early afternoon, then veering west early in the afternoon.
partly sunny with rain showers. waves less than 1 foot. 
.friday night...north winds 5 to 10 knots veering east in the late
evening and overnight. partly cloudy. waves 1 foot or less. 
.saturday...east winds 10 to 15 knots. mostly cloudy. waves 1 foot
or less. 
.sunday...east winds 10 to 15 knots decreasing to around 5 knots
early in the afternoon. mostly sunny. waves 1 foot or less. 
.labor day...southeast winds 10 to 15 knots veering south early in
the afternoon. mostly sunny. waves around 1 foot. 

$$
fzus53 kgrr 021933
nshgrr
expires:202609030800;;792374

nearshore marine forecast
national weather service grand rapids mi
333 pm edt wed sep 2 2026

for waters within five nautical miles of shore on lake michigan


lmz844-030800-
st joseph to south haven mi-
333 pm edt wed sep 2 2026

.through early evening...southwest winds around 15 knots. mostly
sunny. waves around 1 foot. 
.tonight...southwest winds 10 to 15 knots. partly cloudy. a slight
chance of showers and thunderstorms after midnight. waves 1 to
2 feet. 
.thursday...southwest winds 10 to 15 knots veering west 5 to
10 knots early in the afternoon. mostly sunny with a chance of
showers and thunderstorms. waves 1 foot or less. 
.thursday night...south winds around 5 knots backing southeast in
the late evening and overnight. partly cloudy with a chance of
thunderstorms and a slight chance of rain showers. waves less than
1 foot. 
.friday...north winds 5 to 10 knots veering south in the late
morning and early afternoon, then veering west early in the
afternoon. partly sunny with a chance of showers and thunderstorms.
waves less than 1 foot. 
.friday night...north winds around 5 knots veering east in the late
evening and overnight. partly cloudy. waves less than 1 foot. 
.saturday...east winds 5 to 10 knots. partly sunny. waves less than
1 foot. 
.sunday...southeast winds 5 to 15 knots backing northeast around
5 knots early in the afternoon. mostly sunny. waves less than
1 foot. 
.labor day...southeast winds 5 to 10 knots. mostly sunny. waves less
than 1 foot. 

$$
fzus53 kgrr 021933
nshgrr
expires:202609030800;;792373

nearshore marine forecast
national weather service grand rapids mi
333 pm edt wed sep 2 2026

for waters within five nautical miles of shore on lake michigan


lmz845-030800-
south haven to holland mi-
333 pm edt wed sep 2 2026

.through early evening...southwest winds 10 to 15 knots. partly
sunny. waves 1 to 2 feet. 
.tonight...southwest winds 10 to 15 knots backing south 5 to
10 knots in the late evening and overnight. partly cloudy. a slight
chance of showers and thunderstorms after midnight. waves 1 to
2 feet. 
.thursday...south winds 10 to 15 knots veering southwest in the late
morning and afternoon. mostly sunny with a chance of rain showers
and a slight chance of thunderstorms. waves 1 foot or less. 
.thursday night...west winds around 5 knots backing east in the late
evening and overnight. partly cloudy with rain showers and a chance
of thunderstorms. waves less than 1 foot. 
.friday...east winds 5 to 10 knots veering south in the late morning
and early afternoon, then veering northwest early in the afternoon.
partly sunny with rain showers and a slight chance of thunderstorms.
waves less than 1 foot. 
.friday night...north winds around 5 knots veering east in the late
evening and overnight. partly cloudy. waves less than 1 foot. 
.saturday...east winds 5 to 10 knots. partly sunny. waves less than
1 foot. 
.sunday...east winds 5 to 15 knots backing northeast around 5 knots
early in the afternoon. mostly sunny. waves 1 foot or less. 
.labor day...southeast winds 10 to 15 knots veering southwest 5 to
10 knots early in the afternoon. mostly sunny. waves 1 foot or less.

$$
fzus53 kgrr 021933
nshgrr
expires:202609030800;;792371

nearshore marine forecast
national weather service grand rapids mi
333 pm edt wed sep 2 2026

for waters within five nautical miles of shore on lake michigan


lmz847-030800-
grand haven to whitehall mi-
333 pm edt wed sep 2 2026

.through early evening...southwest winds 5 to 15 knots. partly
sunny. waves around 1 foot. 
.tonight...west winds 5 to 10 knots veering east in the late evening
and overnight. partly cloudy with a chance of showers and
thunderstorms. waves around 1 foot. 
.thursday...east winds around 10 knots veering southwest in the late
morning and early afternoon, then veering west 5 to 10 knots early
in the afternoon. partly sunny with a chance of showers and
thunderstorms. waves 1 foot or less. 
.thursday night...north winds 5 to 10 knots veering east in the late
evening and overnight. mostly cloudy with rain showers and a chance
of thunderstorms. waves less than 1 foot. 
.friday...east winds 5 to 10 knots veering south in the late morning
and early afternoon, then veering west early in the afternoon.
mostly cloudy with rain showers. waves less than 1 foot. 
.friday night...north winds 5 to 15 knots veering east in the late
evening and overnight. partly cloudy with rain showers likely and a
chance of thunderstorms. waves 1 foot or less. 
.saturday...east winds 5 to 15 knots. mostly cloudy. waves 1 foot or
less. 
.sunday...southeast winds 10 to 15 knots veering southwest 5 to
10 knots early in the afternoon. mostly sunny. waves around 1 foot. 
.labor day...southeast winds 10 to 15 knots veering south early in
the afternoon. mostly sunny. waves 1 to 3 feet. 

$$
fzus53 kgrr 021933
nshgrr
expires:202609030800;;792370

nearshore marine forecast
national weather service grand rapids mi
333 pm edt wed sep 2 2026

for waters within five nautical miles of shore on lake michigan


lmz848-030800-
whitehall to pentwater mi-
333 pm edt wed sep 2 2026

.through early evening...west winds 5 to 10 knots. partly sunny.
waves 1 foot or less. 
.tonight...northeast winds 5 to 10 knots veering east in the late
evening and overnight. partly cloudy. a chance of showers and
thunderstorms after midnight. waves 1 foot or less. 
.thursday...east winds 5 to 10 knots veering southwest in the late
morning and early afternoon, then veering west early in the
afternoon. partly sunny with a chance of showers and thunderstorms.
waves 1 foot or less. 
.thursday night...northeast winds 5 to 10 knots. mostly cloudy with
rain showers and a chance of thunderstorms. waves less than 1 foot. 
.friday...southeast winds 5 to 10 knots veering west early in the
afternoon. partly sunny with rain showers. waves less than 1 foot. 
.friday night...north winds 5 to 10 knots veering east in the late
evening and overnight. partly cloudy with a chance of showers and
thunderstorms. waves less than 1 foot. 
.saturday...east winds 5 to 15 knots. partly sunny. waves 1 foot or
less. 
.sunday...southeast winds 10 to 15 knots veering southwest early in
the afternoon. mostly sunny. waves 1 foot or less. 
.labor day...south winds 10 to 15 knots veering southwest early in
the afternoon. mostly sunny. waves 2 to 4 feet. 

$$
fzus53 kgrr 021933
nshgrr
expires:202609030800;;792369

nearshore marine forecast
national weather service grand rapids mi
333 pm edt wed sep 2 2026

for waters within five nautical miles of shore on lake michigan


lmz849-030800-
pentwater to manistee mi-
333 pm edt wed sep 2 2026

.through early evening...north winds 5 to 10 knots. partly sunny
with a chance of rain showers. waves 1 foot or less. 
.tonight...east winds around 10 knots becoming 5 to 10 knots after
midnight. partly cloudy. a chance of showers and thunderstorms after
midnight. waves 1 foot or less. 
.thursday...east winds 5 to 10 knots backing northwest early in the
afternoon. partly sunny with a chance of rain showers and a slight
chance of thunderstorms. waves less than 1 foot. 
.thursday night...northeast winds 5 to 10 knots. mostly cloudy with
rain showers and a slight chance of thunderstorms. waves less than
1 foot. 
.friday...east winds 5 to 10 knots backing northwest early in the
afternoon. partly sunny with rain showers and a slight chance of
thunderstorms. waves less than 1 foot. 
.friday night...north winds 5 to 10 knots veering east in the late
evening and overnight. partly cloudy with a chance of rain showers.
waves less than 1 foot. 
.saturday...east winds 5 to 10 knots backing northeast early in the
afternoon. partly sunny. waves less than 1 foot. 
.sunday...southeast winds 10 to 15 knots veering southwest early in
the afternoon. mostly sunny. waves 1 foot or less. 
.labor day...south winds 10 to 15 knots veering southwest early in
the afternoon. partly sunny. waves 2 to 4 feet. 

$$
fzus53 kiwx 021944
nshiwx
expires:202609030215;;792777

nearshore marine forecast
national weather service northern indiana
344 pm edt wed sep 2 2026

for waters within five nautical miles of shore on lake michigan


lmz043-046-030215-
new buffalo mi to st joseph mi-michigan city in to new buffalo mi-
344 pm edt wed sep 2 2026

.tonight...southwest winds around 10 knots. partly cloudy. waves 
1 foot or less. 
.thursday...south winds 10 knots or less becoming west. a slight
chance of showers and thunderstorms. waves 1 foot or less. 
.thursday night...south winds around 5 knots. a slight chance of 
showers and thunderstorms in the evening, then showers likely with
a chance of thunderstorms overnight. waves 1 foot or less. 
.friday...northwest winds less than 10 knots. showers likely with
a chance of thunderstorms in the morning, then a chance of
showers in the afternoon. waves 1 foot or less. 

winds and waves higher in and near thunderstorms.

the water temperature at st. joseph is 73 degrees and at michigan
city is 57 degrees.

$$
fzus53 klot 021955
nshlot
expires:202609030315;;793079

nearshore marine forecast
national weather service chicago/romeoville il
255 pm cdt wed sep 2 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>742-030315-
winthrop harbor to wilmette harbor il-
wilmette harbor to northerly island il-
northerly island to calumet harbor il-
255 pm cdt wed sep 2 2026

.tonight...southwest winds 10 to 15 kt. slight chance of showers
and thunderstorms after midnight. waves 1 to 2 ft. 
.thursday...southwest winds around 10 kt becoming west in the
afternoon. slight chance of showers and thunderstorms in the
morning, then chance of showers and thunderstorms in the
afternoon. waves around 1 ft. 
.thursday night...southeast winds 10 to 15 kt becoming east
overnight. chance of showers and thunderstorms in the evening,
then showers likely and a chance of thunderstorms overnight.
waves 1 to 2 ft. 
.friday...east winds around 10 kt. chance of showers and slight
chance of thunderstorms in the morning. waves 1 to 2 ft. 

$$
fzus53 klot 021955
nshlot
expires:202609030315;;793080

nearshore marine forecast
national weather service chicago/romeoville il
255 pm cdt wed sep 2 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.


lmz743>745-030315-
calumet harbor il to gary in-gary to burns harbor in-
burns harbor to michigan city in-
255 pm cdt wed sep 2 2026

.tonight...southwest winds 10 to 15 kt. slight chance of showers
and thunderstorms after midnight. waves 1 to 2 ft. 
.thursday...southwest winds 10 to 15 kt becoming west in the
afternoon. slight chance of showers and thunderstorms. waves
around 1 ft. 
.thursday night...southeast winds 10 to 15 kt becoming east
overnight. chance of showers and thunderstorms. waves 1 to 2 ft. 
.friday...east winds 5 to 10 kt. chance of showers and slight 
chance of thunderstorms in the morning. waves 1 to 2 ft. 

$$
fzus53 kmkx 022010
nshmkx
expires:202609030900;;794502

nearshore marine forecast
national weather service milwaukee/sullivan wi
310 pm cdt wed sep 2 2026

for waters within five nautical miles of shore on lake michigan


lmz644-030900-
port washington to north point light wi-
310 pm cdt wed sep 2 2026

.through early evening...east wind 5 to 10 knots. partly sunny
with slight chance of thunderstorms and isolated showers. waves
around 1 foot. 
.tonight...east wind 5 to 10 knots easing to 5 knots after
midnight, then becoming northeast early in the morning. scattered
sprinkles in the evening. slight chance of showers and
thunderstorms late in the evening, then chance of showers and
thunderstorms after midnight. waves around 1 foot. 
.thursday...northeast wind 5 to 10 knots veering east late in the
morning, then backing northeast early in the afternoon veering
east late in the afternoon. chance of showers and thunderstorms.
waves around 1 foot. 
.thursday night...east wind 5 to 10 knots. chance of showers
through around midnight. chance of thunderstorms through the
night. showers after midnight. waves around 1 foot. 
.friday...east wind 5 to 10 knots veering southeast in the late
morning and early afternoon, then backing east late in the
afternoon. showers and a chance of thunderstorms in the morning.
waves around 1 foot. 

$$
fzus53 kmkx 022010
nshmkx
expires:202609030900;;794504

nearshore marine forecast
national weather service milwaukee/sullivan wi
310 pm cdt wed sep 2 2026

for waters within five nautical miles of shore on lake michigan


lmz646-030900-
wind point wi to winthrop harbor il-
310 pm cdt wed sep 2 2026

.through early evening...south wind 5 to 10 knots. partly sunny
with scattered showers and slight chance of thunderstorms. waves
around 1 foot. 
.tonight...south wind 5 to 10 knots backing southeast after
midnight. scattered sprinkles through around midnight, then
chance of showers and slight chance of thunderstorms after
midnight. waves around 1 foot. 
.thursday...southeast wind 5 to 10 knots backing northeast early
in the afternoon, then veering east late in the afternoon. chance
of showers and thunderstorms through the day. waves around
1 foot. 
.thursday night...east wind 5 to 10 knots rising to 10 to
15 knots late in the evening, then becoming northeast 5 to
10 knots after midnight becoming east 10 to 15 knots early in the
morning. chance of showers through around midnight. chance of
thunderstorms through the night. showers likely after midnight.
waves around 1 foot. 
.friday...east wind 10 to 15 knots becoming southeast 5 to
10 knots in the late morning and early afternoon, then backing
east late in the afternoon. chance of thunderstorms in the
morning. chance of showers through the day. waves 1 to 2 feet. 

$$
fzus53 kmkx 022010
nshmkx
expires:202609030900;;794501

nearshore marine forecast
national weather service milwaukee/sullivan wi
310 pm cdt wed sep 2 2026

for waters within five nautical miles of shore on lake michigan


lmz643-030900-
sheboygan to port washington wi-
310 pm cdt wed sep 2 2026

.through early evening...east wind 5 to 10 knots. partly sunny
with scattered showers and slight chance of thunderstorms. waves
around 1 foot. 
.tonight...southeast wind 5 to 10 knots becoming east after
midnight, then becoming northeast early in the morning. scattered
sprinkles in the evening. slight chance of showers and
thunderstorms late in the evening, then chance of showers and
thunderstorms after midnight. waves around 1 foot. 
.thursday...northeast wind 5 to 10 knots veering east late in the
morning, then backing northeast early in the afternoon veering
east late in the afternoon. chance of showers and thunderstorms.
waves around 1 foot. 
.thursday night...east wind 5 to 10 knots. chance of showers
through around midnight. chance of thunderstorms through the
night. showers after midnight. waves around 1 foot. 
.friday...east wind 5 to 10 knots veering southeast in the late
morning and early afternoon, then backing east late in the
afternoon. showers in the morning. slight chance of thunderstorms
through the day. chance of showers in the afternoon. waves around
1 foot. 

$$
fzus53 kmkx 022010
nshmkx
expires:202609030900;;794503

nearshore marine forecast
national weather service milwaukee/sullivan wi
310 pm cdt wed sep 2 2026

for waters within five nautical miles of shore on lake michigan


lmz645-030900-
north point light to wind point wi-
310 pm cdt wed sep 2 2026

.through early evening...south wind 5 to 10 knots. partly sunny
with scattered showers and slight chance of thunderstorms. waves
around 1 foot. 
.tonight...east wind 5 to 10 knots. scattered sprinkles in the
evening. slight chance of showers and thunderstorms late in the
evening, then chance of showers and thunderstorms after midnight.
waves around 1 foot. 
.thursday...east wind 5 to 10 knots backing northeast early in
the afternoon, then veering east late in the afternoon. chance of
showers and thunderstorms through the day. waves around 1 foot. 
.thursday night...east wind 5 to 10 knots backing northeast after
midnight, then becoming east 10 to 15 knots early in the morning.
slight chance of showers through around midnight. chance of
thunderstorms through the night. showers after midnight. waves
around 1 foot. 
.friday...east wind 5 to 10 knots veering southeast in the late
morning and early afternoon, then backing east late in the
afternoon. showers and a chance of thunderstorms in the morning.
waves around 1 foot. 

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