For More Weather Information:

10NM SW Grand Portage MN

[NOTICE]

High and low forecast temperature values represent air temperature.

Water temperature forecast is experimental.

Last Update: 5:26 am CDT Apr 26, 2026
Forecast Valid: 5am CDT Apr 26, 2026-6pm CDT May 2, 2026

Today

Variable winds 5 kt or less. Rain likely, mainly before 11am. Waves 1 ft or less.

Tonight

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, mainly after 1pm. Waves 1 ft building to 4 ft.

Monday Night

ENE wind 10 to 15 kt becoming NNW after midnight. Winds could gust as high as 25 kt. Rain. Waves 3 to 4 ft.

Tuesday

NW wind 15 to 20 kt, with gusts as high as 35 kt. A chance of rain, mainly before 1pm. Waves 1 to 3 ft.

Tuesday Night

NW wind 5 to 10 kt, with gusts as high as 20 kt. Partly cloudy. Waves 1 ft or less.

Wednesday

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

Wednesday Night

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

Thursday

NW wind 5 to 10 kt becoming SSW 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.