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Nearshore Marine Forecast
National Weather Service Milwaukee/Sullivan WI
1110 PM CST Thu Nov 13 2025

For waters within five nautical miles of shore on Lake Michigan

LMZ643-141100-
Sheboygan to Port Washington WI-
1110 PM CST Thu Nov 13 2025

.REST OF TONIGHT...Southwest wind 5 to 10 knots backing south
early in the morning. Mostly cloudy around midnight then
clearing. Waves around 1 foot.
.FRIDAY...South wind 5 to 10 knots rising to 10 to 15 knots late
in the afternoon. Sunny. Waves 1 to 2 feet.
.FRIDAY NIGHT...South wind 10 to 15 knots rising to 15 to
20 knots after midnight, then becoming south 15 to 20 knots early
in the morning. Partly cloudy through around midnight then
becoming mostly cloudy. Waves 1 to 3 feet building to 3 to 4 feet
in the late evening and overnight.
.SATURDAY...Southwest wind 15 to 20 knots veering west late in
the morning, then becoming 15 to 25 knots early in the afternoon
veering northwest late in the afternoon. Slight chance of showers
in the morning. Waves 3 to 4 feet. A small craft advisory may be
needed.

Wave heights are for ice free areas.

$$
LMZ644-141100-
Port Washington to North Point Light WI-
1110 PM CST Thu Nov 13 2025

.REST OF TONIGHT...Southwest wind 5 to 10 knots backing south
early in the morning. Mostly cloudy around midnight then
clearing. Waves around 1 foot.
.FRIDAY...South wind 5 to 10 knots backing southeast early in the
afternoon, then rising to 10 to 15 knots late in the afternoon.
Sunny. Waves around 1 foot.
.FRIDAY NIGHT...South wind 10 to 15 knots rising to 15 to
20 knots after midnight, then veering southwest early in the
morning. Partly cloudy through around midnight then becoming
mostly cloudy. Waves 1 to 2 feet building to 2 to 4 feet after
midnight.
.SATURDAY...Southwest wind 15 to 20 knots veering west 10 to
20 knots late in the morning, then rising to 15 to 25 knots early
in the afternoon veering northwest late in the afternoon. Partly
sunny. Waves 2 to 4 feet. A small craft advisory may be needed.

Wave heights are for ice free areas.

$$
LMZ645-141100-
North Point Light to Wind Point WI-
1110 PM CST Thu Nov 13 2025

.REST OF TONIGHT...Southwest wind 5 to 10 knots becoming south
10 to 15 knots after midnight. Mostly cloudy around midnight then
clearing. Waves around 1 foot.
.FRIDAY...Southwest wind 5 to 10 knots backing south late in the
morning, then backing southeast early in the afternoon becoming
south 10 to 15 knots late in the afternoon. Sunny. Waves 1 to
2 feet.
.FRIDAY NIGHT...South wind 10 to 15 knots rising to 15 to
20 knots after midnight, then veering southwest early in the
morning. Partly cloudy through around midnight then becoming
mostly cloudy. Waves 1 to 2 feet building to 2 to 4 feet after
midnight.
.SATURDAY...Southwest wind 15 to 20 knots veering west 10 to
20 knots in the late morning and early afternoon, then becoming
northwest 15 to 25 knots late in the afternoon. Partly sunny.
Waves 2 to 4 feet. A small craft advisory may be needed.

Wave heights are for ice free areas.

$$
LMZ646-141100-
Wind Point WI to Winthrop Harbor IL-
1110 PM CST Thu Nov 13 2025

.REST OF TONIGHT...South wind 5 to 10 knots rising to 10 to
15 knots after midnight. Partly cloudy. Waves 1 to 2 feet.
.FRIDAY...Southwest wind 5 to 10 knots backing south early in the
afternoon, then rising to 10 to 15 knots late in the afternoon.
Sunny. Waves 1 to 2 feet.
.FRIDAY NIGHT...South wind 10 to 15 knots rising to 15 to
20 knots after midnight, then veering southwest early in the
morning. Partly cloudy through around midnight then becoming
mostly cloudy. Waves 1 to 2 feet building to 2 to 4 feet after
midnight.
.SATURDAY...Southwest wind 15 to 20 knots veering west early in
the afternoon, then veering northwest 15 to 25 knots late in the
afternoon. Partly sunny. Waves 2 to 4 feet subsiding to 1 to
2 feet early in the afternoon, then building to 2 to 4 feet late
in the afternoon. A small craft advisory may be needed.

Wave heights are for ice free areas.

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