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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: 2:21 am CDT Apr 25, 2026
Forecast Valid: 4am CDT Apr 25, 2026-6pm CDT May 1, 2026

Saturday

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

Saturday Night

Variable winds 5 kt or less. A slight chance of rain after 4am. Waves 1 ft or less.

Sunday

ENE wind 5 to 10 kt. A slight chance of rain before 1pm. Waves 1 ft or less.

Sunday Night

NE wind around 10 kt, with gusts as high as 15 kt. Mostly cloudy. Waves 1 ft or less.

Monday

ENE wind 10 to 15 kt, with gusts as high as 25 kt. Rain likely, mainly after 1pm. Waves 1 ft building to 4 ft.

Monday Night

ENE wind 10 to 15 kt becoming N after midnight. Winds could gust as high as 25 kt. Rain. Waves 5 to 6 ft.

Tuesday

WNW wind 15 to 20 kt, with gusts as high as 35 kt. A chance of rain, mainly before 1pm. Waves 5 ft subsiding to 2 ft.

Tuesday Night

WNW wind 5 to 10 kt, with gusts as high as 25 kt. Partly cloudy. Waves 1 to 2 ft.

Wednesday

NW wind 5 to 10 kt becoming W in the afternoon. Winds could gust as high as 15 kt. 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.