FZUS53 KMKX 230610
NSHMKX

Nearshore Marine Forecast
National Weather Service Milwaukee/Sullivan WI
110 AM CDT Sun Aug 23 2026

For waters within five nautical miles of shore on Lake Michigan

LMZ643-230900-
Sheboygan to Port Washington WI-
110 AM CDT Sun Aug 23 2026

.REST OF TONIGHT...Northwest wind 10 to 15 knots rising to 15 to
20 knots early in the morning. Slight chance of waterspouts.
Waves 1 to 2 feet. 
.SUNDAY...Northwest wind 15 to 20 knots becoming north 10 to
15 knots with gusts to around 20 knots late in the afternoon.
Sunny in the morning then becoming partly sunny. Waves 1 to
2 feet. 
.SUNDAY NIGHT...North wind 10 to 15 knots backing northwest early
in the morning. Mostly clear. Waves 1 to 2 feet. 
.MONDAY...Northwest wind 10 to 15 knots becoming north 5 to
10 knots early in the afternoon, then veering east late in the
afternoon. Sunny. Waves around 1 foot. 

$$
LMZ644-230900-
Port Washington to North Point Light WI-
110 AM CDT Sun Aug 23 2026

.REST OF TONIGHT...Northwest wind 10 to 15 knots. Slight chance
of waterspouts. Waves 1 to 2 feet. 
.SUNDAY...Northwest wind 10 to 15 knots. Sunny. Waves 1 to
2 feet. 
.SUNDAY NIGHT...North wind 5 to 15 knots becoming 5 to 10 knots
late in the evening, then becoming north 5 to 10 knots after
midnight. Mostly clear. Waves 1 to 2 feet. 
.MONDAY...Northwest wind 5 to 10 knots veering northeast late in
the afternoon. Sunny. Waves 1 to 2 feet. 

$$
LMZ645-230900-
North Point Light to Wind Point WI-
110 AM CDT Sun Aug 23 2026

.REST OF TONIGHT...Northwest wind 10 to 15 knots. Slight chance
of waterspouts. Waves 1 to 2 feet. 
.SUNDAY...Northwest wind 10 to 15 knots veering north in the
afternoon. Slight chance of waterspouts in the morning. Waves
1 to 2 feet. 
.SUNDAY NIGHT...North wind 10 to 15 knots easing to 5 to 10 knots
in the late evening and early morning, then backing northwest
early in the morning. Partly cloudy. Waves 1 to 2 feet. 
.MONDAY...Northwest wind 5 to 10 knots veering northeast late in
the afternoon. Sunny. Waves 1 to 2 feet. 

$$
LMZ646-230900-
Wind Point WI to Winthrop Harbor IL-
110 AM CDT Sun Aug 23 2026

.REST OF TONIGHT...Northwest wind 10 to 15 knots. Slight chance
of waterspouts. Waves 1 to 2 feet. 
.SUNDAY...Northwest wind 10 to 15 knots veering north early in
the afternoon, then backing northwest late in the afternoon.
Slight chance of waterspouts in the morning. Waves 1 to 2 feet. 
.SUNDAY NIGHT...North wind 5 to 10 knots backing northwest after
midnight. Partly cloudy. Waves 1 to 2 feet. 
.MONDAY...Northwest wind 5 to 10 knots veering northeast late in
the afternoon. Sunny. Waves 1 to 2 feet. 

$$
See Lake Michigan Open Waters Forecast for Tuesday through Thursday.