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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: 2:57 pm CDT Apr 13, 2026
Forecast Valid: 3pm CDT Apr 13, 2026-6pm CDT Apr 20, 2026

This Afternoon

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

Tonight

NE wind 5 to 10 kt, with gusts as high as 20 kt. A chance of rain, mainly after 11pm. Patchy fog after 11pm. Waves 1 ft or less.

Tuesday

NE wind around 10 kt, with gusts as high as 20 kt. A chance of rain, mainly before 2pm. Patchy fog before 1pm. Waves around 1 ft.

Tuesday Night

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

Wednesday

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

Wednesday Night

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

Thursday

NNE wind 5 to 10 kt becoming SSE in the afternoon. A slight chance of rain before 1pm. Waves 1 ft or less.

Thursday Night

ENE wind 5 to 10 kt, with gusts as high as 15 kt. A slight chance of rain. Waves 1 to 2 ft.

Friday

ENE wind 10 to 15 kt. A chance of rain. Waves around 3 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.