National Weather Service Marine Forecast FZUS53 KMKX

FZUS53 KMKX 101210
NSHMKX

Nearshore Marine Forecast
National Weather Service Milwaukee/Sullivan WI
710 AM CDT Fri Apr 10 2026

For waters within five nautical miles of shore on Lake Michigan

LMZ643-101600
Sheboygan to Port Washington WI
710 AM CDT Fri Apr 10 2026

TODAY
North wind 10 to 15 knots becoming northeast 5 to 10 knots late in the afternoon. Mostly cloudy. Waves around 1 foot.

TONIGHT
East wind 5 to 10 knots veering southwest early in the morning. Partly cloudy through around midnight then becoming clear. Waves around 1 foot.

SATURDAY
Southwest wind 5 to 10 knots becoming south 10 to 15 knots late in the morning, then backing southeast in the afternoon. Slight chance of showers in the afternoon. Waves around 1 foot.

SATURDAY NIGHT
Southeast wind 10 to 15 knots rising to 15 to 20 knots late in the evening, then becoming southeast 15 to 20 knots after midnight veering south 15 to 25 knots early in the morning. Slight chance of thunderstorms through around midnight. Rain showers through the night. Chance of thunderstorms after midnight. Waves 1 to 2 feet building to 5 to 7 feet. A small craft advisory may be needed.

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LMZ644-101600
Port Washington to North Point Light WI
710 AM CDT Fri Apr 10 2026

TODAY
North wind 5 to 10 knots rising to 10 to 15 knots early in the afternoon, then veering northeast late in the afternoon. Isolated showers in the morning. Waves around 1 foot.

TONIGHT
East wind 5 to 10 knots veering southeast late in the evening, then becoming south after midnight veering southwest early in the morning. Mostly clear. Waves around 1 foot.

SATURDAY
Southwest wind 5 to 10 knots backing southeast 5 to 15 knots late in the morning, then becoming 10 to 15 knots early in the afternoon becoming southeast 10 to 15 knots late in the afternoon. Slight chance of showers in the afternoon. Waves around 1 foot.

SATURDAY NIGHT
Southeast wind 10 to 15 knots rising to 15 to 20 knots late in the evening, then becoming southeast 15 to 20 knots after midnight veering south early in the morning. Rain showers and slight chance of thunderstorms. Waves 1 to 2 feet building to 4 to 6 feet.

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LMZ645-101600
North Point Light to Wind Point WI
710 AM CDT Fri Apr 10 2026

TODAY
North wind 10 to 15 knots veering northeast late in the afternoon. Numerous showers in the morning. Waves 1 to 2 feet.

TONIGHT
Northeast wind 5 to 10 knots veering east late in the evening, then becoming southeast after midnight veering south early in the morning. Partly cloudy. Waves 1 to 2 feet.

SATURDAY
South wind 5 to 10 knots backing southeast late in the morning, then rising to 10 to 15 knots early in the afternoon becoming southeast 10 to 15 knots late in the afternoon. Slight chance of showers in the afternoon. Waves around 1 foot.

SATURDAY NIGHT
Southeast wind 10 to 15 knots rising to 15 to 20 knots after midnight, then veering south early in the morning. Rain showers likely and slight chance of thunderstorms. Waves 1 to 2 feet building to 3 to 4 feet after midnight.

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LMZ646-101600
Wind Point WI to Winthrop Harbor IL
710 AM CDT Fri Apr 10 2026

TODAY
North wind 10 to 15 knots veering northeast late in the afternoon. Numerous showers in the morning. Waves 1 to 2 feet.

TONIGHT
Northeast wind 5 to 10 knots becoming east after midnight, then veering southeast early in the morning. Partly cloudy. Waves 1 to 2 feet.

SATURDAY
Southeast wind 5 to 10 knots backing east late in the afternoon. Sunny in the morning then becoming partly sunny. Waves around 1 foot.

SATURDAY NIGHT
Southeast wind 10 to 15 knots rising to 15 to 20 knots after midnight, then veering south early in the morning. Rain showers likely and slight chance of thunderstorms through the night. Waves 1 to 2 feet building to 3 to 4 feet after midnight.

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See Lake Michigan Open Waters Forecast for Sunday through Tuesday.