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: 2:07 pm CDT Apr 2, 2026
Forecast Valid: 4pm CDT Apr 2, 2026-6pm CDT Apr 9, 2026

Late Afternoon

ENE wind around 20 kt, with gusts as high as 35 kt. Snow. Waves around 6 ft.

Tonight

NE wind 20 to 25 kt becoming N 15 to 20 kt after midnight. Winds could gust as high as 40 kt. Snow, mainly before 3am. Waves 6 ft subsiding to 3 ft.

Friday

N wind around 10 kt becoming ENE in the afternoon. Winds could gust as high as 20 kt. Partly sunny. Waves 1 to 2 ft.

Friday Night

ENE wind 10 to 20 kt, with gusts as high as 40 kt. A chance of snow before 1am, then snow, possibly mixed with sleet. Waves 1 ft building to 5 ft.

Saturday

ENE wind 15 to 20 kt, with gusts as high as 35 kt. Snow. Waves 5 to 6 ft.

Saturday Night

NNW wind around 15 kt, with gusts as high as 25 kt. A chance of snow before 1am. Waves 1 to 3 ft.

Sunday

NW wind around 10 kt becoming W in the afternoon. Winds could gust as high as 25 kt. Mostly sunny. Waves 1 ft or less.

Sunday Night

W wind 5 to 10 kt becoming NW after midnight. Winds could gust as high as 20 kt. A chance of snow. Waves 1 ft or less.

Monday

N wind 10 to 15 kt, with gusts as high as 25 kt. A chance of snow. 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.