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: 8:36 am CDT Jul 4, 2026
Forecast Valid: 10am CDT Jul 4, 2026-6pm CDT Jul 10, 2026

Independence Day

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

Tonight

NE wind 5 to 10 kt. A slight chance of showers and thunderstorms before midnight. Waves 1 ft or less.

Sunday

NE wind 5 to 10 kt. Mostly sunny. Waves 1 ft or less.

Sunday Night

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

Monday

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

Monday Night

Variable winds 5 kt or less. A slight chance of showers after 1am. Waves 1 ft or less.

Tuesday

WSW wind 5 to 10 kt. A slight chance of showers and thunderstorms after 1pm. Waves 1 ft or less.

Tuesday Night

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

Wednesday

Variable winds less than 5 kt becoming ESE 5 to 10 kt in the afternoon. A chance of showers. 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.