Station List

National Weather Service Marine Forecast FZUS53 KMKX

FZUS53 KMKX 202010
NSHMKX

Nearshore Marine Forecast
National Weather Service Milwaukee/Sullivan WI
310 PM CDT Fri Mar 20 2026

For waters within five nautical miles of shore on Lake Michigan

LMZ643-210900
Sheboygan to Port Washington WI
310 PM CDT Fri Mar 20 2026

THROUGH EARLY EVENING
North wind 10 to 15 knots. Partly sunny. Waves 1 to 2 feet.

TONIGHT
North wind 5 to 10 knots veering east early in the morning. Mostly cloudy. Waves around 1 foot.

SATURDAY
Southeast wind 5 to 10 knots rising to 10 to 15 knots late in the morning, then veering south in the afternoon. Partly sunny. Waves 1 to 2 feet building to 2 to 4 feet late in the afternoon.

SATURDAY NIGHT
South wind 10 to 15 knots veering north early in the morning. Partly cloudy through around midnight then becoming mostly cloudy. Waves 2 to 4 feet subsiding to 1 to 2 feet after midnight.

SUNDAY
North wind 15 to 20 knots becoming 15 to 25 knots in the late morning and early afternoon, then becoming north 15 to 25 knots late in the afternoon. Slight chance of rain through the day. Slight chance of snow in the afternoon. Waves 3 to 4 feet building to 5 to 7 feet. A small craft advisory may be needed.

LMZ644-210900
Port Washington to North Point Light WI
310 PM CDT Fri Mar 20 2026

THROUGH EARLY EVENING
North wind 10 to 15 knots. Mostly cloudy. Waves around 1 foot.

TONIGHT
North wind 5 to 10 knots veering east early in the morning. Mostly cloudy. Waves around 1 foot.

SATURDAY
Southeast wind 5 to 10 knots rising to 10 to 15 knots late in the morning, then veering south early in the afternoon becoming south 10 to 15 knots late in the afternoon. Partly sunny. Waves 1 to 2 feet.

SATURDAY NIGHT
South wind 10 to 15 knots veering north early in the morning. Partly cloudy through around midnight then becoming mostly cloudy. Waves 1 to 2 feet.

SUNDAY
North wind 15 to 20 knots becoming 15 to 25 knots late in the morning, then becoming north 15 to 25 knots in the afternoon. Slight chance of rain through the day. Waves 3 to 5 feet building to 6 to 8 feet. A small craft advisory may be needed.

LMZ645-210900
North Point Light to Wind Point WI
310 PM CDT Fri Mar 20 2026

THROUGH EARLY EVENING
North wind 10 to 15 knots. Mostly cloudy. Waves 1 to 2 feet.

TONIGHT
North wind 10 to 15 knots easing to 5 to 10 knots late in the evening, then veering northeast after midnight veering east early in the morning. Mostly cloudy. Waves 1 to 2 feet.

SATURDAY
Southeast wind 5 to 10 knots becoming south 10 to 15 knots in the afternoon. Partly sunny. Waves 1 to 2 feet.

SATURDAY NIGHT
South wind 10 to 15 knots veering north early in the morning. Partly cloudy. Waves 1 to 2 feet.

SUNDAY
North wind 15 to 20 knots becoming 15 to 25 knots with gusts to around 30 knots in the late morning and afternoon. Slight chance of rain through the day. Waves 3 to 5 feet building to 6 to 8 feet. A small craft advisory may be needed.

LMZ646-210900
Wind Point WI to Winthrop Harbor IL
310 PM CDT Fri Mar 20 2026

THROUGH EARLY EVENING
North wind 10 to 15 knots. Mostly cloudy. Waves 1 to 2 feet.

TONIGHT
North wind 10 to 15 knots easing to 5 to 10 knots late in the evening, then veering northeast after midnight veering east early in the morning. Mostly cloudy. Waves 1 to 2 feet.

SATURDAY
East wind 5 to 10 knots veering southeast late in the morning, then becoming south 10 to 15 knots in the afternoon. Partly sunny. Waves 1 to 2 feet.

SATURDAY NIGHT
South wind 10 to 15 knots veering northwest early in the morning. Partly cloudy. Waves 1 to 2 feet.

SUNDAY
North wind 15 to 20 knots becoming 15 to 25 knots with gusts to around 30 knots in the late morning and afternoon. Slight chance of rain through the day. Waves 3 to 5 feet building to 6 to 8 feet. A small craft advisory may be needed.

See Lake Michigan Open Waters Forecast for Monday through Wednesday.