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Nearshore Marine Forecast

National Weather Service Milwaukee/Sullivan WI

705 PM CDT Fri Jul 18 2025



For waters within five nautical miles of shore on Lake Michigan



LMZ643-190400-

Sheboygan to Port Washington WI-

705 PM CDT Fri Jul 18 2025



.TONIGHT...South wind 5 to 10 knots. Partly cloudy through around

midnight then becoming mostly cloudy. Waves around 1 foot. 

.SATURDAY...South wind 5 to 10 knots veering west 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. 

.SATURDAY NIGHT...North wind 5 to 10 knots rising to 10 to

15 knots in the late evening and overnight. Chance of showers and

thunderstorms through around midnight. Waves 1 to 2 feet. 

.SUNDAY...Northeast wind 10 to 15 knots. Mostly sunny. Waves 1 to

2 feet. 



$$

LMZ644-190400-

Port Washington to North Point Light WI-

705 PM CDT Fri Jul 18 2025



.TONIGHT...Southeast wind 5 to 10 knots veering south early in

the morning. Partly cloudy through around midnight then becoming

mostly cloudy. Waves around 1 foot. 

.SATURDAY...South wind 5 to 10 knots becoming southwest 10 to

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

west 5 to 10 knots 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. 

.SATURDAY NIGHT...North wind 5 to 10 knots rising to 10 to

15 knots in the late evening and overnight. Chance of showers and

thunderstorms through around midnight. Waves 1 to 2 feet. 

.SUNDAY...Northeast wind 10 to 15 knots. Partly sunny. Waves 2 to

4 feet subsiding to 1 to 3 feet late in the afternoon. 



$$

LMZ645-190400-

North Point Light to Wind Point WI-

705 PM CDT Fri Jul 18 2025



.TONIGHT...Southeast wind 5 to 10 knots veering south early in

the morning. Partly cloudy through around midnight then becoming

mostly cloudy. Waves around 1 foot. 

.SATURDAY...South wind 10 to 15 knots veering west 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. 

.SATURDAY NIGHT...North wind 5 to 10 knots rising to 10 to

15 knots in the late evening and early morning, then becoming

north 10 to 15 knots early in the morning. Chance of showers and

thunderstorms through around midnight. Waves around 1 foot

building to 2 to 4 feet early in the morning. 

.SUNDAY...Northeast wind 10 to 15 knots. Partly sunny. Waves 2 to

4 feet. 



$$

LMZ646-190400-

Wind Point WI to Winthrop Harbor IL-

705 PM CDT Fri Jul 18 2025



.TONIGHT...Southeast wind 5 to 10 knots veering south early in

the morning. Mostly clear through around midnight then becoming

mostly cloudy. Waves around 1 foot. 

.SATURDAY...South wind 5 to 10 knots rising to 10 to 15 knots

late in the morning, then veering southwest early in the

afternoon easing to 5 to 10 knots late in the afternoon. Showers

likely and a chance of thunderstorms. Waves around 1 foot. 

.SATURDAY NIGHT...North wind 5 to 10 knots rising to 10 to

15 knots late in the evening, then becoming north 10 to 15 knots

after midnight. Chance of showers and thunderstorms through

around midnight. Waves around 1 foot building to 2 to 4 feet

early in the morning. 

.SUNDAY...Northeast wind 10 to 15 knots. Partly sunny. Waves 2 to

4 feet. 



$$

See Lake Michigan Open Waters Forecast for Monday through Wednesday.