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Nearshore Marine Forecast

National Weather Service Milwaukee/Sullivan WI

1110 AM CDT Tue Aug 4 2026



For waters within five nautical miles of shore on Lake Michigan



LMZ643-042200-

Sheboygan to Port Washington WI-

1110 AM CDT Tue Aug 4 2026



...SMALL CRAFT ADVISORY IN EFFECT UNTIL 10 PM CDT THIS EVENING...



.REST OF TODAY...South wind 15 to 20 knots. Slight chance of

showers and thunderstorms late in the afternoon. Waves 2 to

4 feet. 

.TONIGHT...South wind 10 to 20 knots becoming 10 to 15 knots late

in the evening, then becoming southwest 5 to 10 knots after

midnight veering northwest early in the morning. Showers likely

and a chance of thunderstorms. Waves 2 to 4 feet subsiding to

1 to 2 feet after midnight. 

.WEDNESDAY...Northwest wind 5 to 10 knots veering east late in

the afternoon. Patchy fog in the morning. chance of showers and

thunderstorms in the morning, then slight chance of showers and

thunderstorms in the afternoon. Waves around 1 foot. 

.WEDNESDAY NIGHT...Southeast wind 5 to 10 knots easing to 5 knots

late in the evening, then veering south after midnight becoming

north early in the morning. Slight chance of thunderstorms

through around midnight. Slight chance of showers through the

night. Waves around 1 foot. 



$$

LMZ644-042200-

Port Washington to North Point Light WI-

1110 AM CDT Tue Aug 4 2026



.REST OF TODAY...South wind 10 to 15 knots backing southeast late

in the afternoon. Partly sunny. Waves 1 to 2 feet building to

2 to 4 feet late in the afternoon. 

.TONIGHT...South wind 10 to 15 knots becoming southwest 5 to

10 knots after midnight, then veering west early in the morning.

Chance of showers through around midnight. Chance of

thunderstorms through the night. Showers after midnight. Waves

2 to 4 feet subsiding to 1 to 2 feet in the late evening and

overnight. 

.WEDNESDAY...Northwest wind 5 to 10 knots veering east early in

the afternoon, then becoming east 5 to 10 knots late in the

afternoon. Patchy fog in the morning. showers likely and a chance

of thunderstorms in the morning, then chance of showers and

slight chance of thunderstorms in the afternoon. Waves around

1 foot. 

.WEDNESDAY NIGHT...East wind 5 to 10 knots backing northwest late

in the evening, then becoming northwest 5 to 10 knots after

midnight. Chance of thunderstorms through around midnight. Chance

of showers through the night. Waves nearly calm. 



$$

LMZ645-042200-

North Point Light to Wind Point WI-

1110 AM CDT Tue Aug 4 2026



.REST OF TODAY...South wind 10 to 15 knots backing southeast with

gusts to around 20 knots late in the afternoon. Partly sunny.

Waves 1 to 2 feet. 

.TONIGHT...South wind 10 to 15 knots becoming southwest 5 to

10 knots after midnight, then veering west early in the morning.

Chance of showers and slight chance of thunderstorms through

around midnight, then showers and a chance of thunderstorms after

midnight. Waves 1 to 2 feet. 

.WEDNESDAY...Northwest wind 5 to 10 knots veering east early in

the afternoon, then becoming east 5 to 10 knots late in the

afternoon. Showers in the morning. Chance of thunderstorms

through the day. Chance of showers in the afternoon. Waves around

1 foot. 

.WEDNESDAY NIGHT...East wind 5 to 10 knots veering southwest late

in the evening, then veering west after midnight veering

northwest early in the morning. Chance of thunderstorms through

around midnight. Chance of showers through the night. Slight

chance of thunderstorms after midnight. Waves nearly calm. 



$$

LMZ646-042200-

Wind Point WI to Winthrop Harbor IL-

1110 AM CDT Tue Aug 4 2026



.REST OF TODAY...South wind 10 to 15 knots backing southeast late

in the afternoon. Mostly sunny. Waves 1 to 2 feet. 

.TONIGHT...South wind 10 to 15 knots becoming southwest 5 to

10 knots after midnight, then veering west early in the morning.

Chance of showers and thunderstorms after midnight. Waves 1 to

2 feet. 

.WEDNESDAY...West wind 5 to 10 knots backing southeast early in

the afternoon, then backing east late in the afternoon. Showers

likely in the morning. Chance of thunderstorms through the day.

Chance of showers in the afternoon. Waves around 1 foot. 

.WEDNESDAY NIGHT...Northeast wind 5 to 10 knots veering southwest

late in the evening, then veering west after midnight becoming

west 5 to 10 knots early in the morning. Showers likely and a

chance of thunderstorms. Waves nearly calm. 



$$

See Lake Michigan Open Waters Forecast for Thursday through Saturday.