| NWS Forecast for: Grand Portage to Grand Marais MN (LSZ140) Issued by: National Weather Service Duluth, MN Last Update: 237 AM CDT Wed May 20 2026 | |
| Today: Northwest wind 5 knots becoming southwest 10 to 15 knots in the late morning and afternoon. Mostly sunny. Waves 1 to 2 feet. Tonight: Southwest wind 5 to 10 knots becoming west early in the morning. Mostly clear. Waves 1 to 2 feet. Thursday: Southeast wind 5 to 10 knots. Mostly sunny. Waves 1 foot or less. Thursday Night: East wind 5 to 10 knots becoming northeast after midnight. Partly cloudy. Waves 1 to 2 feet. | |
| Zone Forecast: Grand Portage to Grand Marais MN (LSZ140) | |
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