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: 1:21 am CDT Jun 6, 2026
Forecast Valid: 1am CDT Jun 6, 2026-6pm CDT Jun 12, 2026

Saturday

Variable winds 5 kt or less. Increasing clouds. Waves 1 ft or less.

Saturday Night

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

Sunday

ENE wind 5 to 10 kt, with gusts as high as 15 kt. Mostly sunny. Waves 1 ft or less.

Sunday Night

NE wind 5 to 10 kt, with gusts as high as 20 kt. Partly cloudy. Waves 1 to 2 ft.

Monday

ENE wind 5 to 10 kt. A chance of showers, with thunderstorms also possible after 4pm. Waves 1 to 2 ft.

Monday Night

Variable winds 5 kt or less. Showers likely and possibly a thunderstorm before 1am, then a chance of showers. Waves around 1 ft.

Tuesday

Variable winds 5 kt or less. A slight chance of showers before 1pm. Waves 1 ft or less.

Tuesday Night

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

Wednesday

ENE wind 5 to 10 kt, with gusts as high as 15 kt. A slight chance of showers and thunderstorms after 1pm. 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.