For More Weather Information:

21NM E Grand Portage MN

[NOTICE]

High and low forecast temperature values represent air temperature.

Water temperature forecast is experimental.

Last Update: 4:26 pm CDT Jul 3, 2025
Forecast Valid: 7pm CDT Jul 3, 2025-6pm CDT Jul 10, 2025

Tonight

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

Independence Day

Variable winds 5 kt or less. Scattered showers and thunderstorms, mainly before 1pm. Waves 1 ft or less.

Friday Night

SSW wind 5 to 10 kt. Scattered showers and thunderstorms. Waves 1 ft or less.

Saturday

SW wind 5 to 10 kt. Showers and possibly a thunderstorm. Waves 1 ft or less.

Saturday Night

N wind 5 to 10 kt. A chance of showers before 1am. Waves 1 ft or less.

Sunday

N wind 5 to 10 kt becoming ENE in the afternoon. Sunny. Waves 1 ft or less.

Sunday Night

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

Monday

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

Monday Night

Variable winds 5 kt or less. Partly cloudy. 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.