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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: 2:16 pm CDT May 19, 2026
Forecast Valid: 2pm CDT May 19, 2026-6pm CDT May 25, 2026

This Afternoon

WNW wind around 10 kt, with gusts as high as 20 kt. A chance of sprinkles after 3pm. Waves around 1 ft.

Tonight

WNW wind 5 to 10 kt, with gusts as high as 15 kt. A chance of sprinkles before 7pm. Waves 1 ft or less.

Wednesday

NW wind 5 to 10 kt becoming SSW in the afternoon. Sunny. Waves 1 ft or less.

Wednesday Night

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

Thursday

Variable winds 5 kt or less. Sunny. Waves 1 ft or less.

Thursday Night

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

Friday

Variable winds less than 5 kt becoming E 5 to 10 kt in the morning. Winds could gust as high as 15 kt. Partly sunny. Waves around 1 ft.

Friday Night

NE wind around 10 kt, with gusts as high as 20 kt. A slight chance of showers. Waves 1 to 2 ft.

Saturday

ENE wind around 10 kt, with gusts as high as 15 kt. A chance of showers. Waves around 1 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.