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: 928 PM CDT Sat Mar 14 2026
Print




Rest Of Tonight: East wind 5 to 10 knots becoming northeast up to 30 knots. Chance of snow late in the evening, then snow likely after midnight. Waves 1 to 2 feet building to 4 to 6 feet toward daybreak. Waves occasionally to 8 feet.

Sunday: Northeast wind up to 30 knots with gales to around 35 knots rising to gales to 35 knots with gales to around 40 knots in the late morning and early afternoon, then becoming north up to 30 knots with gales to around 35 knots late in the afternoon. Freezing spray through the day. Snow in the morning. Snow likely in the afternoon. Waves 8 to 13 feet. Waves occasionally to 17 feet.

Sunday Night: North wind up to 30 knots with gales to around 35 knots. Heavy freezing spray. Chance of snow. Waves 7 to 12 feet. Waves occasionally to 16 feet.

Monday: North wind up to 30 knots. Gusts up to 35 knots decreasing to 30 knots in the afternoon. Heavy freezing spray. . Waves 7 to 10 feet subsiding to 5 to 8 feet in the afternoon. Waves occasionally to 13 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