FZUS53 KMKX 230010
NSHMKX

Nearshore Marine Forecast
National Weather Service Milwaukee/Sullivan WI
710 PM CDT Sat Aug 22 2026

For waters within five nautical miles of shore on Lake Michigan

LMZ643-230400-
Sheboygan to Port Washington WI-
710 PM CDT Sat Aug 22 2026

.TONIGHT...North wind 5 to 15 knots becoming 5 to 10 knots late
in the evening, then becoming northwest 10 to 15 knots after
midnight. Chance of showers and thunderstorms in the evening.
slight chance of waterspouts through the night. Waves 1 to
2 feet. 
.SUNDAY...Northwest wind 10 to 15 knots veering north late in the
afternoon. Sunny. Waves 1 to 2 feet. 
.SUNDAY NIGHT...North wind 10 to 15 knots becoming 5 to 15 knots
after midnight, then becoming 5 to 10 knots early in the morning.
Mostly clear. Waves 1 to 2 feet. 
.MONDAY...Northwest wind 10 to 15 knots veering north late in the
morning, then becoming northeast 5 to 10 knots early in the
afternoon veering east late in the afternoon. Sunny. Waves 1 to
2 feet. 

$$
LMZ644-230400-
Port Washington to North Point Light WI-
710 PM CDT Sat Aug 22 2026

.TONIGHT...North wind 5 to 10 knots rising to 10 to 15 knots
after midnight, then backing northwest early in the morning.
Slight chance of showers and thunderstorms in the evening. slight
chance of waterspouts through the night. Waves 1 to 2 feet. 
.SUNDAY...Northwest wind 10 to 15 knots veering north 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 easing to 5 to 10 knots
in the late evening and early morning, then becoming north 5 to
10 knots early in the morning. Mostly clear. Waves 1 to 2 feet. 
.MONDAY...North wind 5 to 10 knots veering east late in the
afternoon. Sunny. Waves 1 to 2 feet. 

$$
LMZ645-230400-
North Point Light to Wind Point WI-
710 PM CDT Sat Aug 22 2026

.TONIGHT...North wind 5 to 10 knots rising to 10 to 15 knots
after midnight, then backing northwest early in the morning.
Slight chance of showers and thunderstorms in the evening. slight
chance of waterspouts through the night. Waves 1 to 2 feet. 
.SUNDAY...Northwest wind 10 to 15 knots veering north late 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
late in the evening, then veering northeast after midnight
backing north early in the morning. Mostly clear. Waves 1 to
3 feet. 
.MONDAY...North wind 5 to 10 knots veering east late in the
afternoon. Sunny. Waves 1 to 2 feet. 

$$
LMZ646-230400-
Wind Point WI to Winthrop Harbor IL-
710 PM CDT Sat Aug 22 2026

.TONIGHT...North wind 10 knots becoming 5 to 10 knots late in the
evening, then rising to 10 to 15 knots after midnight backing
northwest early in the morning. Slight chance of showers and
thunderstorms in the evening. slight chance of waterspouts
through the night. Waves 1 to 2 feet. 
.SUNDAY...Northwest wind 10 to 15 knots. Slight chance of
waterspouts in the morning. Waves 1 to 2 feet. 
.SUNDAY NIGHT...North wind 5 to 10 knots backing northwest early
in the morning. 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. 

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