Coastal Waters Forecast for Sheboygan to Port Washington WI (LMZ643) (Text-Only)
NWS Forecast for: Sheboygan to Port Washington WI (LMZ643)
Issued by: National Weather Service Milwaukee, WI
Last Update: 512 AM CST Mon Feb 16 2026
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Today: South wind 10 to 15 knots veering west late in the afternoon. Gusts up to 25 knots. Mostly sunny. Waves 1 to 2 feet.

Tonight: North wind 5 to 10 knots veering northeast late in the evening, then becoming northeast 5 to 10 knots after midnight becoming east 10 to 15 knots early in the morning. Partly cloudy. Waves around 1 foot.

Tuesday: East wind 10 to 15 knots rising to 15 to 20 knots early in the afternoon, then becoming 15 to 25 knots late in the afternoon. Mostly cloudy. Waves 1 to 2 feet building to 4 to 6 feet.

Tuesday Night: Southeast wind 15 to 25 knots rising to up to 30 knots late in the evening, then becoming southeast up to 30 knots after midnight easing to 15 to 25 knots early in the morning. Rain likely through around midnight, then rain after midnight. Waves 5 to 7 feet building to 7 to 9 feet in the late evening and overnight.

wave heights are for ice free areas.







Zone Forecast: Sheboygan to Port Washington WI (LMZ643)

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