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Nearshore Marine Forecast
National Weather Service Milwaukee/Sullivan WI
910 PM CST Sun Dec 7 2025

For waters within five nautical miles of shore on Lake Michigan

LMZ643-081100-
Sheboygan to Port Washington WI-
910 PM CST Sun Dec 7 2025

.REST OF TONIGHT...North wind 10 to 15 knots easing to 5 to
10 knots early in the morning. Chance of snow showers after
midnight. Slight chance of snow showers early in the morning.
Waves 1 to 2 feet.
.MONDAY...North wind 5 to 10 knots becoming south 10 to 15 knots
late in the morning, then becoming southwest 15 to 20 knots in
the afternoon. Slight chance of snow showers in the morning.
Waves 1 to 2 feet building to 3 to 4 feet in the afternoon.
.MONDAY NIGHT...Southwest wind up to 30 knots backing south late
in the evening, then veering southwest after midnight becoming
southwest up to 30 knots early in the morning. Chance of snow
showers through around midnight, then snow likely after midnight.
Waves 3 to 5 feet building to 5 to 7 feet late in the evening,
then building to 7 to 9 feet after midnight subsiding to 5 to
7 feet early in the morning. A small craft advisory may be
needed.
.TUESDAY...Southwest wind 15 to 25 knots veering west late in the
morning, then becoming 15 to 20 knots early in the afternoon
backing southwest late in the afternoon. Slight chance of snow
through the day. Slight chance of rain in the afternoon. Waves
4 to 6 feet subsiding to 1 to 2 feet in the afternoon.

Wave heights are for ice free areas.

$$
LMZ644-081100-
Port Washington to North Point Light WI-
910 PM CST Sun Dec 7 2025

.REST OF TONIGHT...North wind 10 to 15 knots becoming northeast
5 to 10 knots early in the morning. Slight chance of snow showers
late in the evening, then chance of snow showers after midnight.
Slight chance of snow showers early in the morning. Waves 2 to
4 feet.
.MONDAY...East wind 5 to 10 knots becoming south 10 to 15 knots
late in the morning, then veering southwest with gusts to around
20 knots early in the afternoon rising to 15 to 20 knots late in
the afternoon. Mostly cloudy. Waves 1 to 3 feet building to 2 to
4 feet late in the afternoon.
.MONDAY NIGHT...Southwest wind 15 to 25 knots becoming south up
to 30 knots late in the evening, then veering southwest after
midnight becoming southwest up to 30 knots early in the morning.
Chance of snow showers through around midnight, then snow likely
after midnight. Waves 4 to 6 feet building to 5 to 7 feet after
midnight, then subsiding to 4 to 6 feet early in the morning. A
small craft advisory may be needed.
.TUESDAY...West wind 15 to 25 knots becoming 15 to 20 knots early
in the afternoon, then backing southwest late in the afternoon.
Slight chance of rain and snow in the afternoon. Waves 3 to
4 feet subsiding to 1 to 2 feet in the afternoon.

Wave heights are for ice free areas.

$$
LMZ645-081100-
North Point Light to Wind Point WI-
910 PM CST Sun Dec 7 2025

.REST OF TONIGHT...North wind 10 to 15 knots veering northeast
after midnight, then becoming east 5 to 10 knots early in the
morning. Chance of snow showers in the late evening and early
morning, then slight chance of snow showers early in the morning.
Waves 3 to 4 feet.
.MONDAY...Southeast wind 10 to 15 knots veering south late in the
morning, then veering southwest early in the afternoon rising to
15 to 20 knots late in the afternoon. Slight chance of snow
showers in the morning. Waves 2 to 4 feet subsiding to 1 to
3 feet late in the morning, then building to 2 to 4 feet in the
afternoon.
.MONDAY NIGHT...South wind 15 to 25 knots rising to up to
30 knots late in the evening, then veering southwest after
midnight becoming southwest up to 30 knots early in the morning.
Chance of snow showers through around midnight, then snow likely
after midnight. Waves 3 to 4 feet building to 4 to 6 feet in the
late evening and overnight. A small craft advisory may be needed.
.TUESDAY...Southwest wind up to 30 knots becoming west 15 to
25 knots late in the morning, then becoming 15 to 20 knots early
in the afternoon backing southwest late in the afternoon. Slight
chance of rain and snow in the afternoon. Waves 3 to 5 feet.

Wave heights are for ice free areas.

$$
LMZ646-081100-
Wind Point WI to Winthrop Harbor IL-
910 PM CST Sun Dec 7 2025

.REST OF TONIGHT...Northeast wind 10 to 15 knots becoming east
5 to 10 knots early in the morning. Chance of snow showers in the
late evening and early morning. Waves 3 to 4 feet.
.MONDAY...Southeast wind 10 to 15 knots veering south late in the
morning, then veering southwest early in the afternoon rising to
15 to 20 knots late in the afternoon. Slight chance of snow
showers in the morning. Waves 2 to 4 feet subsiding to 1 to
3 feet late in the morning, then building to 2 to 4 feet in the
afternoon.
.MONDAY NIGHT...South wind 15 to 25 knots rising to up to
30 knots late in the evening, then veering southwest after
midnight becoming southwest up to 30 knots early in the morning.
Slight chance of snow showers through around midnight, then
chance of snow after midnight. Waves 3 to 4 feet building to 4 to
6 feet in the late evening and overnight. A small craft advisory
may be needed.
.TUESDAY...Southwest wind up to 30 knots becoming west 15 to
25 knots late in the morning, then becoming 15 to 20 knots early
in the afternoon backing southwest late in the afternoon. Slight
chance of rain and snow in the afternoon. Waves 3 to 5 feet
subsiding to 1 to 2 feet in the afternoon.

Wave heights are for ice free areas.

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