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10NM SW Grand Portage MN

[NOTICE]

High and low forecast temperature values represent air temperature.

Water temperature forecast is experimental.

Last Update: 6:46 pm CDT May 3, 2026
Forecast Valid: 9pm CDT May 3, 2026-6pm CDT May 10, 2026

Tonight

SW wind 10 to 15 kt, with gusts as high as 25 kt. A chance of showers, mainly after 4am. Waves 1 to 2 ft.

Monday

W wind 15 to 20 kt, with gusts as high as 30 kt. A chance of showers, mainly before 11am. Waves 2 to 4 ft.

Monday Night

WNW wind 10 to 20 kt, with gusts as high as 30 kt. Partly cloudy. Waves 1 ft or less.

Tuesday

W wind around 10 kt, with gusts as high as 20 kt. Partly sunny. Waves 1 ft or less.

Tuesday Night

WNW wind 5 to 10 kt. Partly cloudy. Waves 1 ft or less.

Wednesday

WNW wind 5 to 10 kt becoming WSW in the afternoon. Partly sunny. Waves 1 ft or less.

Wednesday Night

WNW wind 5 to 10 kt. Mostly cloudy. Waves 1 ft or less.

Thursday

WNW wind 5 to 10 kt becoming WSW in the morning. Partly sunny. Waves 1 ft or less.

Thursday Night

Variable winds 5 kt or less. Partly cloudy. Waves 1 ft or less.

*Notices:

This forecast is for a single location. For safety concerns, mariners should be aware of the weather over a larger area. Forecast information for a larger area can be found within the zone forecast and the NDFD graphics.
The forecast conditions at a particular point may not exceed the criteria of a Small Craft Advisory, Gale, Storm etc. These watches/warnings/advisories are issued for the entire zone in which the point resides and mariners should act accordingly.