| NWS Forecast for: Grand Portage to Grand Marais MN (LSZ140) Issued by: National Weather Service Duluth, MN Last Update: 602 AM CDT Sat Mar 14 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: South wind 5 to 10 knots becoming northeast 10 to 15 knots with gusts to around 25 knots early in the morning. Slight chance of snow after midnight. Waves 1 to 2 feet building to 1 to 3 feet early in the morning. Sunday: Northeast wind up to 30 knots. Gusts up to 30 knots increasing to 40 knots. Heavy freezing spray. Chance of snow. Waves 3 to 5 feet building to 6 to 9 feet in the late morning and afternoon. Waves occasionally to 12 feet. Sunday Night: North wind up to 30 knots with gales to around 45 knots rising to gales to 35 knots with gales to around 45 knots in the late evening and early morning, then becoming northwest with storm force gusts to around 50 knots early in the morning. Heavy freezing spray. Chance of snow. Waves 6 to 9 feet. Waves occasionally to 11 feet. A storm warning may be needed. note...wave height forecasts are for ice free areas. | |
| Zone Forecast: Grand Portage to Grand Marais MN (LSZ140) | |
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