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Nearshore Marine Forecast
National Weather Service Milwaukee/Sullivan WI
705 PM CDT Mon Sep 1 2025

For waters within five nautical miles of shore on Lake Michigan

LMZ643-020400-
Sheboygan to Port Washington WI-
705 PM CDT Mon Sep 1 2025

.TONIGHT...East wind 5 to 10 knots becoming northeast late in the
evening, then becoming northeast 5 knots after midnight backing
northwest early in the morning. Patchy fog early in the morning.
Waves nearly calm.
.TUESDAY...West wind 5 to 10 knots backing southwest late in the
morning, then backing south early in the afternoon rising to
10 to 15 knots late in the afternoon. Sunny. Waves around 1 foot.
.TUESDAY NIGHT...South wind 10 to 15 knots veering southwest in
the late evening and overnight. Slight chance of showers and
thunderstorms after midnight. Waves 1 to 2 feet.
.WEDNESDAY...Southwest wind 15 to 20 knots veering west late in
the afternoon. Showers likely in the morning. Chance of
thunderstorms through the day. Showers in the afternoon. Waves
1 to 2 feet.

$$
LMZ644-020400-
Port Washington to North Point Light WI-
705 PM CDT Mon Sep 1 2025

.TONIGHT...Northeast wind 5 to 10 knots easing to 5 knots after
midnight, then backing northwest early in the morning. Patchy fog
early in the morning. Waves nearly calm.
.TUESDAY...Northwest wind 5 knots backing west late in the
morning, then becoming south early in the afternoon becoming
south 5 to 10 knots late in the afternoon. Patchy fog in the
morning. Waves nearly calm.
.TUESDAY NIGHT...South wind 5 to 10 knots veering southwest late
in the evening, then rising to 10 to 15 knots after midnight.
Partly cloudy. Waves around 1 foot.
.WEDNESDAY...Southwest wind 10 to 15 knots rising to 15 to
20 knots late in the morning, then becoming southwest 15 to
20 knots early in the afternoon veering west late in the
afternoon. Chance of showers in the morning. Chance of
thunderstorms through the day. Showers in the afternoon. Waves
1 to 2 feet.

$$
LMZ645-020400-
North Point Light to Wind Point WI-
705 PM CDT Mon Sep 1 2025

.TONIGHT...Northeast wind 5 to 10 knots becoming north early in
the morning. Clear. Waves nearly calm.
.TUESDAY...Northwest wind 5 knots becoming north late in the
morning, then veering east early in the afternoon veering
southeast late in the afternoon. Sunny. Waves nearly calm.
.TUESDAY NIGHT...South wind 5 to 10 knots veering southwest late
in the evening, then rising to 10 to 15 knots after midnight.
Partly cloudy. Waves around 1 foot.
.WEDNESDAY...Southwest wind 10 to 15 knots rising to 15 to
20 knots late in the morning, then becoming southwest 15 to
20 knots early in the afternoon veering west late in the
afternoon. Chance of showers in the morning. Chance of
thunderstorms through the day. Showers in the afternoon. Waves
1 to 2 feet.

$$
LMZ646-020400-
Wind Point WI to Winthrop Harbor IL-
705 PM CDT Mon Sep 1 2025

.TONIGHT...Northeast wind 5 to 10 knots becoming north early in
the morning. Clear. Waves nearly calm.
.TUESDAY...Northwest wind 5 knots becoming north late in the
morning, then veering east early in the afternoon veering
southeast late in the afternoon. Sunny. Waves nearly calm.
.TUESDAY NIGHT...South wind 5 to 10 knots veering southwest late
in the evening, then rising to 10 to 15 knots after midnight
becoming southwest 10 to 15 knots early in the morning. Partly
cloudy. Waves around 1 foot.
.WEDNESDAY...Southwest wind 10 to 15 knots with gusts to around
20 knots rising to 15 to 20 knots early in the afternoon, then
veering west late in the afternoon. Chance of showers in the
morning. Chance of thunderstorms through the day. Showers in the
afternoon. Waves 1 to 2 feet.

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