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: 6:12 pm CDT Apr 29, 2026
Forecast Valid: 7pm CDT Apr 29, 2026-6pm CDT May 6, 2026

Tonight

Variable winds 5 kt or less. A chance of rain and snow showers before 3am, then a slight chance of snow showers. Waves 1 ft or less.

Thursday

Variable winds 5 kt or less. A chance of rain and snow showers before 10am, then a chance of snow showers. Waves 1 ft or less.

Thursday Night

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

Friday

N wind 5 to 10 kt becoming SSE in the afternoon. Mostly sunny. Waves 1 ft or less.

Friday Night

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

Saturday

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

Saturday Night

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

Sunday

W wind 5 to 10 kt. A slight chance of rain. Waves 1 ft or less.

Sunday Night

Variable winds 5 kt or less. A slight chance of rain. 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.