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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: 6:41 am CDT Apr 10, 2026
Forecast Valid: 8am CDT Apr 10, 2026-6pm CDT Apr 16, 2026

Today

W wind 5 to 10 kt becoming SW in the afternoon. Mostly sunny. Waves 1 ft or less.

Tonight

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

Saturday

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

Saturday Night

E wind 10 to 15 kt. Showers. Waves 1 ft or less building to 3 ft.

Sunday

ESE wind 5 to 10 kt becoming ENE in the afternoon. Showers, with thunderstorms also possible after 4pm. Waves 2 to 3 ft.

Sunday Night

NE wind 5 to 10 kt becoming W after midnight. Winds could gust as high as 15 kt. Showers likely and possibly a thunderstorm. Waves 1 to 2 ft.

Monday

NW wind 5 to 10 kt becoming ENE in the afternoon. Mostly sunny. Waves 1 ft or less.

Monday Night

ENE wind 5 to 15 kt, with gusts as high as 20 kt. A chance of rain. Waves 1 to 2 ft.

Tuesday

ENE wind 10 to 15 kt, with gusts as high as 25 kt. A chance of rain. Waves around 3 ft.

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.