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Nearshore Marine Forecast

National Weather Service Milwaukee/Sullivan WI

705 PM CDT Sun Jul 20 2025



For waters within five nautical miles of shore on Lake Michigan



LMZ643-210400-

Sheboygan to Port Washington WI-

705 PM CDT Sun Jul 20 2025



.TONIGHT...Northeast wind 10 to 15 knots. Areas of smoke through

the night. Waves 1 to 2 feet. 

.MONDAY...Northeast wind 10 to 15 knots veering east late in the

morning, then backing northeast early in the afternoon easing to

5 to 10 knots late in the afternoon. Sunny. Waves 2 to 4 feet

subsiding to 1 to 2 feet in the afternoon. 

.MONDAY NIGHT...Northeast wind 10 to 15 knots veering southeast

early in the morning. Partly cloudy. Waves 1 to 2 feet building

to 2 to 4 feet early in the morning. 

.TUESDAY...South wind 15 to 20 knots easing to 10 to 15 knots

late in the afternoon. Partly sunny. Waves 3 to 4 feet. 



$$

LMZ644-210400-

Port Washington to North Point Light WI-

705 PM CDT Sun Jul 20 2025



.TONIGHT...Northeast wind 10 to 15 knots. Areas of smoke. Waves

2 to 4 feet. 

.MONDAY...East wind 10 to 15 knots becoming northeast 5 to

10 knots late in the afternoon. Sunny. Waves 2 to 4 feet

subsiding to 1 to 3 feet late in the afternoon. 

.MONDAY NIGHT...Northeast wind 10 to 15 knots veering southeast

early in the morning. Partly cloudy. Waves 1 to 2 feet building

to 2 to 4 feet early in the morning. 

.TUESDAY...South wind 10 to 15 knots rising to 15 to 20 knots

late in the morning, then backing southeast early in the

afternoon easing to 10 to 15 knots late in the afternoon. Mostly

sunny. Waves 3 to 4 feet. 



$$

LMZ645-210400-

North Point Light to Wind Point WI-

705 PM CDT Sun Jul 20 2025



.TONIGHT...North wind 10 to 15 knots veering northeast early in

the morning. Areas of smoke. Waves 2 to 4 feet. 

.MONDAY...East wind 10 to 15 knots backing northeast late in the

afternoon. Areas of smoke in the morning. Waves 2 to 4 feet

subsiding to 1 to 3 feet late in the afternoon. 

.MONDAY NIGHT...Northeast wind 10 to 15 knots veering southeast

early in the morning. Partly cloudy. Waves 1 to 3 feet. 

.TUESDAY...South wind 10 to 15 knots backing southeast in the

afternoon. Mostly sunny. Waves 2 to 4 feet. 



$$

LMZ646-210400-

Wind Point WI to Winthrop Harbor IL-

705 PM CDT Sun Jul 20 2025



.TONIGHT...North wind 10 to 15 knots veering northeast early in

the morning. Areas of smoke. Waves 2 to 4 feet. 

.MONDAY...East wind 10 to 15 knots backing northeast late in the

afternoon. Areas of smoke in the morning. Waves 2 to 4 feet

subsiding to 1 to 3 feet late in the afternoon. 

.MONDAY NIGHT...Northeast wind 10 to 15 knots veering southeast

early in the morning. Partly cloudy. Waves 1 to 3 feet. 

.TUESDAY...South wind 10 to 15 knots backing southeast in the

afternoon. Mostly sunny. Waves 2 to 4 feet subsiding to 1 to

3 feet late in the afternoon. 



$$

See Lake Michigan Open Waters Forecast for Wednesday through Friday.