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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: 6:21 am CDT Apr 18, 2026
Forecast Valid: 7am CDT Apr 18, 2026-6pm CDT Apr 24, 2026

Today

W wind 15 to 20 kt, with gusts as high as 30 kt. A chance of flurries after 1pm. Waves 1 to 2 ft.

Tonight

WNW wind 10 to 20 kt, with gusts as high as 30 kt. Partly cloudy. Waves 1 to 2 ft.

Sunday

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

Sunday Night

NW wind 5 to 10 kt becoming variable and less than 5 kt after midnight. Mostly clear. Waves 1 ft or less.

Monday

S wind 5 to 10 kt increasing to 10 to 15 kt in the afternoon. Winds could gust as high as 20 kt. Partly sunny. Waves 1 ft or less building to 3 ft.

Monday Night

SSW wind 10 to 15 kt becoming W after midnight. Winds could gust as high as 25 kt. Partly cloudy. Waves 2 to 3 ft.

Tuesday

NW wind 5 to 10 kt becoming W in the afternoon. Sunny. Waves 1 ft or less.

Tuesday Night

Variable winds 5 kt or less. Mostly clear. Waves 1 ft or less.

Wednesday

ESE wind 5 to 10 kt. Sunny. Waves 1 ft or less.

Note...Wave height forecasts are for ice free areas.

*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.