| NWS Forecast for: Grand Portage to Grand Marais MN (LSZ140) Issued by: National Weather Service Duluth, MN Last Update: 513 PM CDT Tue May 19 2026 |  |
| Tonight: Northwest wind 5 to 10 knots. Gusts up to 20 knots early in the evening. Chance of sprinkles early in the evening. Waves 1 to 2 feet. Wednesday: Northwest wind 5 knots becoming southwest late in the morning, then rising to 10 to 15 knots with gusts to around 20 knots in the afternoon. Mostly sunny. Waves 1 to 2 feet. Wednesday Night: Southwest wind 5 to 10 knots. Clear. Waves 1 to 2 feet. Thursday: South wind 5 to 10 knots. Sunny. Waves 1 foot or less. | |
| Zone Forecast: Grand Portage to Grand Marais MN (LSZ140) | |
Visit your local NWS office at: https://www.weather.gov/dlh |