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: 11:57 am CDT Jun 5, 2026
Forecast Valid: 1pm CDT Jun 5, 2026-6pm CDT Jun 11, 2026

This Afternoon

SW wind 5 to 10 kt. Partly sunny. Waves 1 ft or less.

Tonight

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

Saturday

Variable winds 5 kt or less. Mostly sunny. 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 slight chance of showers, then a chance of showers and thunderstorms after 1pm. Waves 1 to 2 ft.

Monday Night

Variable winds 5 kt or less. Showers likely and possibly a thunderstorm. Waves around 1 ft.

Tuesday

Variable winds 5 kt or less. A slight chance of showers, with thunderstorms also possible 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.