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: 710 AM CDT Tue Jun 23 2026
Print




Today: North wind 5 to 10 knots veering east late in the afternoon. Sunny. Waves around 1 foot.

Tonight: South wind 5 knots rising to 5 to 10 knots early in the morning. Chance of showers and slight chance of thunderstorms after midnight. Waves around 1 foot.

Wednesday: South wind 10 to 15 knots rising to 15 to 20 knots early in the afternoon, then easing to 10 to 15 knots late in the afternoon. Rain showers and slight chance of thunderstorms in the morning, then showers likely and a chance of thunderstorms in the afternoon. Waves around 1 foot building to 2 to 4 feet in the afternoon.

Wednesday Night: South wind 5 to 15 knots veering southwest 5 to 10 knots late in the evening, then veering west after midnight veering northwest early in the morning. Rain showers likely and a chance of thunderstorms through around midnight. Waves 2 to 4 feet subsiding to 1 to 2 feet in the late evening and overnight.







Zone Forecast: Sheboygan to Port Washington WI (LMZ643)

Visit your local NWS office at: https://www.weather.gov/mkx