| NWS Forecast for: Grand Portage to Grand Marais MN (LSZ140) Issued by: National Weather Service Duluth, MN Last Update: 523 AM CDT Mon Sep 14 2026 |  |
Today: Southwest wind 5 knots becoming south 10 to 15 knots with gusts to around 20 knots in the late morning and early afternoon, then becoming southeast with gusts to around 20 knots late in the afternoon. Chance of rain showers late in the afternoon. Waves 1 to 2 feet. Tonight: Southeast wind 20 to 25 knots with gales to around 35 knots becoming southwest with gales to around 35 knots after midnight. Rain showers in the evening, then rain showers likely after midnight. Waves 2 to 4 feet building to 4 to 7 feet in the late evening and overnight. Waves occasionally to 9 feet. Tuesday: West wind up to 30 knots with gales to around 40 knots easing to 20 to 25 knots with gales to around 35 knots late in the afternoon. Mostly sunny. Waves 7 to 10 feet subsiding to 4 to 7 feet late in the afternoon. Waves occasionally to 13 feet. Tuesday Night: West wind 10 to 15 knots. Gusts up to 25 knots. Mostly clear. Waves 3 to 5 feet subsiding to 1 to 3 feet in the late evening and overnight. A small craft advisory may be needed. | |
| Zone Forecast: Grand Portage to Grand Marais MN (LSZ140) | |
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