| NWS Forecast for: Duluth MN to Port Wing WI (LSZ145) Issued by: National Weather Service Duluth, MN Last Update: 123 AM CDT Mon May 18 2026 |  |
Today: Northeast wind 5 to 10 knots. Slight chance of rain showers early in the morning. Waves 2 to 4 feet subsiding to 1 to 3 feet in the afternoon. Tonight: Northeast wind 10 to 15 knots. Gusts up to 20 knots late in the evening increasing to 25 knots, then decreasing to 20 knots early in the morning. Rain showers likely in the evening. Slight chance of thunderstorms through the night. Rain showers after midnight. Waves 1 to 2 feet building to 3 to 5 feet in the late evening and overnight. Waves occasionally to 7 feet. A small craft advisory may be needed. Tuesday: North wind 10 to 15 knots becoming west in the late morning and afternoon. Gusts up to 20 knots. Chance of rain showers in the morning. Waves 2 to 4 feet. A small craft advisory may be needed. Tuesday Night: Northwest wind 10 to 15 knots with gusts to around 20 knots becoming west 5 knots after midnight. Mostly cloudy. Waves 1 to 2 feet. | |
| Zone Forecast: Duluth MN to Port Wing WI (LSZ145) | |
Visit your local NWS office at: https://www.weather.gov/dlh |