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Duluth, MN Local Forecast Office

10NM SW Grand Portage MN

Marine Point Forecast

[NOTICE]

Overnight
Low: 47 °F
Light Wind
1ft
Saturday
High: 57 °F
N 10kt
< 1ft
Saturday Night
Low: 46 °F
Light Wind
< 1ft
Sunday
High: 62 °F
SW 10kt
< 1ft
Sunday Night
Low: 47 °F
Light Wind
< 1ft
Monday
High: 60 °F
SE 10kt
< 1ft
Monday Night
Low: 49 °F
SSE 15kt
1-3ft
Tuesday
High: 62 °F
SSE 15kt
2-3ft
Tuesday Night
Low: 53 °F
WSW 10kt
1-2ft

High and low forecast temperature values represent air temperature.

Water temperature forecast is experimental.

Associated Zone Forecast which includes this point

Last Update: 11:41 pm CDT Jun 28, 2024
Forecast Valid: 12am CDT Jun 29, 2024-6pm CDT Jul 5, 2024

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Detailed Forecast

Overnight

Variable winds 5 kt or less. Showers likely and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms after 1am. Areas of dense fog. Waves around 1 ft.

Saturday

WNW wind 5 to 10 kt becoming N in the morning. Winds could gust as high as 20 kt. A chance of showers and thunderstorms. Patchy fog before 11am. Waves 1 ft or less.

Saturday Night

Variable winds 5 kt or less. Winds could gust as high as 15 kt. Mostly cloudy during the early evening, then gradual clearing. Waves 1 ft or less.

Sunday

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

Sunday Night

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

Monday

S wind 5 to 10 kt becoming ESE in the afternoon. Winds could gust as high as 20 kt. A slight chance of showers after 1pm. Waves 1 ft or less.

Monday Night

ESE wind 10 to 15 kt becoming S after midnight. Winds could gust as high as 25 kt. Showers and possibly a thunderstorm. Waves 1 to 3 ft.

Tuesday

SSE wind 10 to 15 kt becoming SW in the afternoon. Winds could gust as high as 25 kt. Showers likely and possibly a thunderstorm before 1pm, then a chance of showers and thunderstorms after 1pm. Waves 2 to 3 ft.

Tuesday Night

WSW wind 5 to 10 kt, with gusts as high as 15 kt. A slight chance of showers and thunderstorms before 1am. Waves 1 to 2 ft.

*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.