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Duluth, MN Local Forecast Office

10NM SW Grand Portage MN

Marine Point Forecast

[NOTICE]
    • Overnight

      Overnight:N wind 10 to 15 kt, with gusts as high as 25 kt. Partly cloudy. Waves 1 ft or less.

      Low: -7 °F

      N 15kt
      < 1ft

      Small Craft Advisory
      Small Craft Advisory

    • Friday

      Friday:N wind 10 to 15 kt, with gusts as high as 20 kt. Mostly sunny. Waves 1 ft or less.

      High: 11 °F

      N 15kt
      < 1ft

      Small Craft Advisory
      Small Craft Advisory

    • Friday Night

      Friday Night:N wind 5 to 10 kt, with gusts as high as 20 kt. Partly cloudy. Waves 1 ft or less.

      Low: 2 °F

      N 10kt
      < 1ft

    • Saturday

      Saturday:NNW wind 5 to 10 kt becoming SW in the afternoon. Winds could gust as high as 20 kt. Mostly sunny. Waves 1 ft or less.

      High: 21 °F

      SW 10kt
      < 1ft

    • Saturday Night

      Saturday Night:SW wind around 10 kt, with gusts as high as 25 kt. Mostly cloudy. Waves 1 to 2 ft.

      Low: 16 °F

      SW 10kt
      1-2ft

    • Sunday

      Sunday:SSW wind 5 to 10 kt becoming W in the afternoon. Winds could gust as high as 25 kt. Snow likely, mainly after noon.   Waves 1 to 2 ft.

      High: 24 °F

      SSW 10kt
      1-2ft

    • Sunday Night

      Sunday Night:W wind 5 to 10 kt becoming NNW in the evening. Winds could gust as high as 20 kt. Mostly cloudy. Waves 1 ft or less.

      Low: 8 °F

      NNW 10kt
      < 1ft

    • Monday

      Monday:NNW wind 5 to 10 kt, with gusts as high as 20 kt. Sunny. Waves 1 ft or less.

      High: 19 °F

      NNW 10kt
      < 1ft

    • Monday Night

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

      Low: 5 °F

      Light Wind
      < 1ft


High and low forecast temperature values represent air temperature.

Water temperature forecast is experimental.

Associated Zone Forecast which includes this point

Last Update: 9:37 pm CST Jan 29, 2026
Forecast Valid: 11pm CST Jan 29, 2026-6pm CST Feb 5, 2026

View Nearby Observations

Detailed Forecast

Overnight
N wind 10 to 15 kt, with gusts as high as 25 kt. Partly cloudy. Waves 1 ft or less.
Friday
N wind 10 to 15 kt, with gusts as high as 20 kt. Mostly sunny. Waves 1 ft or less.
Friday Night
N wind 5 to 10 kt, with gusts as high as 20 kt. Partly cloudy. Waves 1 ft or less.
Saturday
NNW wind 5 to 10 kt becoming SW in the afternoon. Winds could gust as high as 20 kt. Mostly sunny. Waves 1 ft or less.
Saturday Night
SW wind around 10 kt, with gusts as high as 25 kt. Mostly cloudy. Waves 1 to 2 ft.
Sunday
SSW wind 5 to 10 kt becoming W in the afternoon. Winds could gust as high as 25 kt. Snow likely, mainly after noon. Waves 1 to 2 ft.
Sunday Night
W wind 5 to 10 kt becoming NNW in the evening. Winds could gust as high as 20 kt. Mostly cloudy. Waves 1 ft or less.
Monday
NNW wind 5 to 10 kt, with gusts as high as 20 kt. Sunny. Waves 1 ft or less.
Monday Night
Variable winds 5 kt or less. Partly cloudy. Waves 1 ft or less.

Note...Wave height forecasts are for ice free areas.


*Notices:

  1. 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.
  2. 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.
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ABOUT THIS FORECAST

Point Forecast: 47.86°N 89.86°W
Last Update: 9:37 pm CST Jan 29, 2026
Forecast Valid: 11pm CST Jan 29, 2026-6pm CST Feb 5, 2026
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