Nearshore Marine Forecast
Issued by NWS Milwaukee/Sullivan, WI

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Nearshore Marine Forecast
National Weather Service Milwaukee/Sullivan WI
907 AM CDT Mon Oct 6 2025

For waters within five nautical miles of shore on Lake Michigan

LMZ643-062200-
Sheboygan to Port Washington WI-
907 AM CDT Mon Oct 6 2025

.REST OF TODAY...West wind 5 to 10 knots becoming north 10 to
15 knots in the afternoon. Slight chance of showers late in the
morning and early afternoon, then chance of showers late in the
afternoon. Waves 1 to 2 feet.
.TONIGHT...North wind 10 to 15 knots. Chance of showers. Waves
1 to 2 feet.
.TUESDAY...Northwest wind 10 to 15 knots veering north early in
the afternoon, then backing northwest late in the afternoon.
Partly sunny in the morning then clearing. Waves 1 to 2 feet.
.TUESDAY NIGHT...Northwest wind 10 to 15 knots becoming north
15 to 20 knots in the late evening and early morning, then easing
to 10 to 15 knots early in the morning. Mostly clear. Waves 1 to
2 feet building to 2 to 4 feet after midnight.

Wave heights are for ice free areas.

$$
LMZ644-062200-
Port Washington to North Point Light WI-
907 AM CDT Mon Oct 6 2025

.REST OF TODAY...West wind 5 to 10 knots becoming northwest 10 to
15 knots early in the afternoon, then veering north late in the
afternoon. Slight chance of showers early in the afternoon.
Chance of showers and slight chance of thunderstorms late in the
afternoon. Waves 1 to 2 feet.
.TONIGHT...North wind 10 to 15 knots. Slight chance of
thunderstorms through around midnight. Chance of showers through
the night. Waves 1 to 2 feet building to 2 to 4 feet in the late
evening and overnight.
.TUESDAY...North wind 15 to 20 knots easing to 10 to 15 knots
early in the afternoon, then becoming north 10 to 15 knots late
in the afternoon. Partly sunny in the morning then clearing.
Waves 2 to 4 feet subsiding to 1 to 2 feet late in the afternoon.
.TUESDAY NIGHT...Northwest wind 10 to 15 knots becoming 10 to
20 knots late in the evening, then veering north 15 to 20 knots
after midnight easing to 10 to 15 knots early in the morning.
Clear. Waves 1 to 2 feet building to 3 to 4 feet after midnight.

Wave heights are for ice free areas.

$$
LMZ645-062200-
North Point Light to Wind Point WI-
907 AM CDT Mon Oct 6 2025

.REST OF TODAY...Southwest wind 10 to 15 knots becoming northwest
5 to 10 knots early in the afternoon, then becoming north 10 to
15 knots late in the afternoon. Slight chance of showers early in
the afternoon. Slight chance of thunderstorms in the afternoon.
Showers likely late in the afternoon. Waves 1 to 2 feet.
.TONIGHT...North wind 10 to 15 knots rising to 15 to 20 knots
after midnight. Chance of showers and slight chance of
thunderstorms through around midnight, then showers likely after
midnight. Waves 1 to 2 feet building to 3 to 4 feet in the late
evening and overnight.
.TUESDAY...North wind 15 to 20 knots easing to 10 to 15 knots
late in the afternoon. Slight chance of showers in the morning.
Waves 3 to 4 feet.
.TUESDAY NIGHT...Northwest wind 10 to 15 knots veering north
10 to 20 knots late in the evening, then becoming 15 to 20 knots
after midnight becoming north 15 to 20 knots early in the
morning. Clear. Waves 3 to 4 feet.

Wave heights are for ice free areas.

$$
LMZ646-062200-
Wind Point WI to Winthrop Harbor IL-
907 AM CDT Mon Oct 6 2025

.REST OF TODAY...Southwest 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. Slight chance of showers and
thunderstorms early in the afternoon. Showers and a chance of
thunderstorms late in the afternoon. Waves 1 to 2 feet.
.TONIGHT...North wind 10 to 15 knots rising to 15 to 20 knots
early in the morning. Chance of showers and thunderstorms through
around midnight, then showers likely and slight chance of
thunderstorms after midnight. Waves 1 to 2 feet building to 3 to
4 feet in the late evening and overnight.
.TUESDAY...North wind 15 to 20 knots easing to 10 to 15 knots
late in the afternoon. Chance of showers in the morning. Waves
3 to 4 feet.
.TUESDAY NIGHT...North wind 10 to 15 knots rising to 15 to
20 knots after midnight, then veering northeast early in the
morning. Clear. Waves 3 to 4 feet.

Wave heights are for ice free areas.

$$
See Lake Michigan Open Waters Forecast for Wednesday through Friday.