National Weather Service Marine Forecast FZUS53 KMKX

FZUS53 KMKX 120610
NSHMKX

Nearshore Marine Forecast
National Weather Service Milwaukee/Sullivan WI
110 AM CDT Wed Aug 12 2026

For waters within five nautical miles of shore on Lake Michigan

LMZ643-120900
Sheboygan to Port Washington WI
110 AM CDT Wed Aug 12 2026

REST OF TONIGHT
South wind 5 knots backing northeast early in the morning. Patchy fog after midnight, then areas of dense fog early in the morning. Waves nearly calm.

WEDNESDAY
Northeast wind 5 knots veering east late in the morning, then rising to 5 to 10 knots early in the afternoon becoming east 5 to 10 knots late in the afternoon. Areas of dense fog in the morning. Waves nearly calm.

WEDNESDAY NIGHT
Northeast wind 5 to 10 knots becoming east late in the evening, then becoming north after midnight becoming northeast early in the morning. Partly cloudy. Waves nearly calm.

THURSDAY
Northeast wind 5 knots becoming east late in the morning, then becoming east 5 to 10 knots in the afternoon. Slight chance of showers through the day. Waves around 1 foot.

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LMZ644-120900
Port Washington to North Point Light WI
110 AM CDT Wed Aug 12 2026

REST OF TONIGHT
South wind 5 knots backing northeast early in the morning. Patchy fog. Waves nearly calm.

WEDNESDAY
North wind 5 knots veering northeast late in the morning, then veering east early in the afternoon rising to 5 to 10 knots late in the afternoon. Patchy fog in the morning. Waves nearly calm.

WEDNESDAY NIGHT
East wind 5 to 10 knots becoming northeast late in the evening, then becoming northeast 5 knots after midnight. Partly cloudy. Waves nearly calm.

THURSDAY
Northeast wind 5 to 10 knots veering east in the afternoon. Chance of showers through the day. Waves around 1 foot.

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LMZ645-120900
North Point Light to Wind Point WI
110 AM CDT Wed Aug 12 2026

REST OF TONIGHT
Southeast wind 5 knots backing east early in the morning. Patchy fog. Waves nearly calm.

WEDNESDAY
North wind 5 knots becoming northeast late in the morning, then veering east in the afternoon. Patchy fog in the morning. Waves nearly calm.

WEDNESDAY NIGHT
East wind 5 to 10 knots backing northeast early in the morning. Partly cloudy through around midnight then becoming mostly cloudy. Waves nearly calm.

THURSDAY
East wind 5 to 10 knots. Chance of showers through the day. Waves around 1 foot.

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LMZ646-120900
Wind Point WI to Winthrop Harbor IL
110 AM CDT Wed Aug 12 2026

REST OF TONIGHT
South wind 5 knots backing southeast early in the morning. Patchy fog. slight chance of showers and thunderstorms. Waves nearly calm.

WEDNESDAY
Northeast wind 5 knots rising to 5 to 10 knots late in the morning, then veering east in the afternoon. Patchy fog in the morning. slight chance of showers and thunderstorms in the afternoon. Waves nearly calm.

WEDNESDAY NIGHT
East wind 5 to 10 knots backing northeast early in the morning. Partly cloudy. Waves nearly calm.

THURSDAY
East wind 5 to 10 knots. Chance of showers through the day. Slight chance of thunderstorms in the afternoon. Waves around 1 foot.

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See Lake Michigan Open Waters Forecast for Friday through Sunday.