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: 506 AM CDT Sun Apr 20 2025




Today: East wind 10 to 15 knots becoming northeast 15 to 20 knots late in the afternoon. Slight chance of showers early in the afternoon. Chance of showers late in the afternoon. Waves 1 to 2 feet building to 2 to 4 feet in the late morning and afternoon.

Tonight: Northeast wind 15 to 20 knots veering east 10 to 20 knots with gusts to around 25 knots late in the evening, then rising to 15 to 25 knots after midnight veering southeast with gusts to around 30 knots early in the morning. Rain showers and slight chance of thunderstorms. Waves 3 to 4 feet building to 8 to 10 feet.

Monday: Southeast wind 15 to 25 knots veering west late in the afternoon. Gusts up to 30 knots. Slight chance of thunderstorms in the morning. Chance of showers through the day. Waves 7 to 9 feet subsiding to 3 to 5 feet.

Monday Night: West wind 15 to 25 knots becoming 15 to 20 knots late in the evening, then becoming 10 to 20 knots after midnight becoming 10 to 15 knots early in the morning. Partly cloudy. 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