Nearshore Marine Forecast
Issued by NWS Milwaukee/Sullivan, WI

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FZUS53 KMKX 201110
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Nearshore Marine Forecast
National Weather Service Milwaukee/Sullivan WI
510 AM CST Thu Nov 20 2025

For waters within five nautical miles of shore on Lake Michigan

LMZ643-201700-
Sheboygan to Port Washington WI-
510 AM CST Thu Nov 20 2025

.TODAY...Southwest wind 10 to 15 knots. Slight chance of drizzle
through the day. Waves 1 to 2 feet.
.TONIGHT...Southwest wind 10 to 15 knots veering northwest early
in the morning. Mostly cloudy. Waves around 1 foot.
.FRIDAY...Northwest wind 10 to 15 knots. Mostly sunny. Waves
around 1 foot.
.FRIDAY NIGHT...North wind 5 to 10 knots. Partly cloudy. Waves
around 1 foot.

Wave heights are for ice free areas.

$$
LMZ644-201700-
Port Washington to North Point Light WI-
510 AM CST Thu Nov 20 2025

.TODAY...Southwest wind 5 to 10 knots rising to 10 to 15 knots in
the late morning and early afternoon, then becoming southwest
10 to 15 knots late in the afternoon. Patchy fog in the morning.
slight chance of drizzle through the day. Waves around 1 foot.
.TONIGHT...Southwest wind 10 to 15 knots becoming west 5 to
10 knots in the late evening and early morning, then becoming
northwest 10 to 15 knots early in the morning. Mostly cloudy.
Waves around 1 foot.
.FRIDAY...Northwest wind 10 to 15 knots easing to 5 to 10 knots
early in the afternoon, then becoming north 10 to 15 knots late
in the afternoon. Partly sunny. Waves around 1 foot.
.FRIDAY 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. Partly cloudy. Waves around
1 foot.

Wave heights are for ice free areas.

$$
LMZ645-201700-
North Point Light to Wind Point WI-
510 AM CST Thu Nov 20 2025

.TODAY...Southwest wind 5 to 10 knots rising to 10 to 15 knots in
the late morning and early afternoon, then becoming southwest
10 to 15 knots late in the afternoon. Patchy fog in the morning.
slight chance of drizzle through the day. Waves around 1 foot.
.TONIGHT...Southwest wind 5 to 10 knots becoming west 10 to
15 knots late in the evening, then easing to 5 to 10 knots after
midnight becoming northwest 10 to 15 knots early in the morning.
Slight chance of drizzle. Waves around 1 foot.
.FRIDAY...Northwest wind 10 to 15 knots veering north late in the
afternoon. Partly sunny. Waves around 1 foot.
.FRIDAY NIGHT...North wind 10 to 15 knots easing to 5 to 10 knots
early in the morning. Mostly cloudy through around midnight then
becoming partly cloudy. Waves 1 to 2 feet.

Wave heights are for ice free areas.

$$
LMZ646-201700-
Wind Point WI to Winthrop Harbor IL-
510 AM CST Thu Nov 20 2025

.TODAY...Southwest wind 5 to 10 knots rising to 10 to 15 knots.
Patchy fog in the morning. slight chance of drizzle in the
morning. Slight chance of drizzle in the afternoon. Waves around
1 foot.
.TONIGHT...Southwest wind 5 to 10 knots veering west late in the
evening, then becoming west 5 to 10 knots after midnight becoming
northwest 10 to 15 knots early in the morning. Slight chance of
drizzle through the night. Waves around 1 foot.
.FRIDAY...Northwest wind 10 to 15 knots veering north late in the
afternoon. Partly sunny. Waves around 1 foot.
.FRIDAY NIGHT...North wind 10 to 15 knots easing to 5 to 10 knots
early in the morning. Mostly cloudy through around midnight then
becoming partly cloudy. Waves 1 to 2 feet.

Wave heights are for ice free areas.

$$
See Lake Michigan Open Waters Forecast for Saturday through Monday.