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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: 9:46 am CST Feb 28, 2026
Forecast Valid: 9am CST Feb 28, 2026-6pm CST Mar 6, 2026

Today

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

Tonight

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

Sunday

NNW wind 5 to 10 kt becoming SW in the morning. Sunny. Waves 1 ft or less.

Sunday Night

SW wind 5 to 10 kt, with gusts as high as 25 kt. Increasing clouds. Waves 1 ft or less.

Monday

SW wind 10 to 20 kt, with gusts as high as 30 kt. Mostly sunny. Waves 1 ft or less.

Monday Night

SW wind 5 to 10 kt becoming NW after midnight. Winds could gust as high as 20 kt. Mostly cloudy. Waves 1 ft or less.

Tuesday

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

Tuesday Night

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

Wednesday

W wind 5 to 15 kt becoming ESE in the afternoon. Partly 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.