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: 4:16 am CDT Jul 15, 2026
Forecast Valid: 5am CDT Jul 15, 2026-6pm CDT Jul 21, 2026

Today

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

Tonight

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

Thursday

Variable winds 5 kt or less. A chance of showers, mainly between 2pm and 4pm. Widespread smoke. Waves 1 ft or less.

Thursday Night

Variable winds 5 kt or less. A chance of showers after 1am. Widespread smoke before 8pm. Waves 1 ft or less.

Friday

ENE wind 5 to 10 kt. Showers likely, with thunderstorms also possible after 1pm. Waves 1 ft or less.

Friday Night

Variable winds 5 kt or less. A chance of showers and thunderstorms before 1am, then a slight chance of showers. 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

SW wind 5 to 10 kt. A slight 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.