Coastal Waters Forecast for Duluth MN to Port Wing WI (LSZ145) (Text-Only)
NWS Forecast for: Duluth MN to Port Wing WI (LSZ145)
Issued by: National Weather Service Duluth, MN
Last Update: 343 PM CDT Sun Mar 29 2026
Print




Tonight: Northeast wind 5 to 10 knots. Partly cloudy early in the evening then becoming mostly cloudy. Waves 1 to 2 feet.

Monday: Northeast wind 15 to 20 knots with gusts to around 30 knots. Mostly cloudy. Waves 1 to 3 feet building to 3 to 5 feet in the afternoon. Waves occasionally to 7 feet.

Monday Night: Northeast wind 15 to 20 knots. Gusts up to 30 knots decreasing to 25 knots early in the morning. Chance of rain, light freezing rain and slight chance of snow after midnight. Waves 4 to 7 feet. Waves occasionally to 9 feet.

Tuesday: Northeast wind 10 to 15 knots with gusts to around 25 knots becoming north with gusts to around 20 knots in the afternoon. Chance of rain and light freezing rain in the morning. Slight chance of snow through the day. Slight chance of rain in the afternoon. Waves 4 to 6 feet. Waves occasionally to 7 feet.

note...wave height forecasts are for ice free areas.







Zone Forecast: Duluth MN to Port Wing WI (LSZ145)

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