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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: 5:21 pm CDT Mar 29, 2026
Forecast Valid: 7pm CDT Mar 29, 2026-6pm CDT Apr 5, 2026

Tonight

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

Monday

NNE wind 5 to 15 kt becoming ENE in the afternoon. A slight chance of snow before 3pm, then a slight chance of snow after 4pm. Waves 1 ft or less.

Monday Night

ENE wind around 15 kt, with gusts as high as 20 kt. A chance of snow after 1am, mixing with sleet after 4am. Waves 2 to 3 ft.

Tuesday

NE wind 10 to 15 kt, with gusts as high as 25 kt. Snow, possibly mixed with sleet, becoming all snow after 10am. Waves 3 to 4 ft.

Tuesday Night

N wind around 10 kt, with gusts as high as 20 kt. Partly cloudy. Waves 1 to 2 ft.

Wednesday

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

Wednesday Night

ENE wind 10 to 15 kt. Mostly cloudy. Waves 1 to 2 ft.

Thursday

ENE wind 15 to 20 kt, with gusts as high as 30 kt. A slight chance of snow. Waves 3 ft building to 6 ft.

Thursday Night

ENE wind around 20 kt, with gusts as high as 35 kt. A chance of snow. Waves around 6 ft.

*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.