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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: 2:46 pm CDT May 22, 2026
Forecast Valid: 3pm CDT May 22, 2026-6pm CDT May 29, 2026

This Afternoon

ENE wind around 15 kt, with gusts as high as 20 kt. Mostly cloudy. Waves 1 to 2 ft.

Tonight

NE wind 10 to 15 kt, with gusts as high as 25 kt. A chance of showers after 5am. Waves 2 to 3 ft.

Saturday

NE wind around 10 kt, with gusts as high as 15 kt. Showers. Waves around 2 ft.

Saturday Night

Variable winds 5 kt or less. A chance of showers, mainly before 10pm. Waves 1 to 2 ft.

Sunday

Variable winds less than 5 kt becoming SW 5 to 10 kt in the morning. Partly sunny. Waves 1 ft or less.

Sunday Night

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

Memorial Day

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

Monday Night

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

Tuesday

WNW wind 5 to 10 kt becoming SE in the afternoon. Mostly sunny. 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.