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: 6:31 am CDT Jul 14, 2026
Forecast Valid: 7am CDT Jul 14, 2026-6pm CDT Jul 20, 2026

Today

WSW wind around 10 kt, with gusts as high as 20 kt. Areas of smoke. Waves 1 to 2 ft.

Tonight

Variable winds 5 kt or less. Widespread smoke. Waves 1 ft or less.

Wednesday

Variable winds 5 kt or less. Widespread smoke. Waves 1 ft or less.

Wednesday Night

Variable winds 5 kt or less. Widespread smoke before 2am. Waves 1 ft or less.

Thursday

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

Thursday Night

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

Friday

E wind 5 to 10 kt. A chance of showers, with thunderstorms also possible after 1pm. Waves 1 ft or less.

Friday Night

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

Saturday

NNE wind 5 to 10 kt. 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.