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Duluth, MN Local Forecast Office

10NM SW Grand Portage MN

Marine Point Forecast

[NOTICE]
    • Today

      Today:W wind 10 to 15 kt, with gusts as high as 20 kt. Partly sunny. Waves 1 to 3 ft.

      High: 22 °F

      W 15kt
      1-3ft

      Small Craft Advisory
      Small Craft Advisory

    • Tonight

      Tonight:WNW wind 5 to 10 kt, with gusts as high as 15 kt. A chance of flurries after 5am.   Waves 1 to 3 ft.

      Low: 12 °F

      WNW 10kt
      1-3ft

      Small Craft Advisory
      Small Craft Advisory

    • Tuesday

      Tuesday:WNW wind 5 to 15 kt becoming SW in the afternoon. Winds could gust as high as 25 kt. A slight chance of snow after 1pm.   Waves 1 to 2 ft.

      High: 27 °F

      SW 15kt
      1-2ft

    • Tuesday Night

      Tuesday Night:SW wind 10 to 15 kt becoming NNW after midnight. Winds could gust as high as 25 kt. Snow likely.   Waves 1 to 3 ft.

      Low: 12 °F

      SW 15kt
      1-3ft

    • Wednesday

      Wednesday:NNW wind around 15 kt, with gusts as high as 25 kt. Mostly sunny. Waves 1 ft or less.

      High: 20 °F

      NNW 15kt
      < 1ft

    • Wednesday Night

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

      Low: 0 °F

      NW 15kt
      < 1ft

    • Thursday

      Thursday:WNW wind 10 to 15 kt becoming SW in the afternoon. Winds could gust as high as 30 kt. A slight chance of snow after noon.   Waves 1 to 2 ft.

      High: 21 °F

      SW 15kt
      1-2ft

    • Thursday Night

      Thursday Night:SW wind 10 to 15 kt, with gusts as high as 30 kt. A chance of snow.   Waves around 3 ft.

      Low: 16 °F

      SW 15kt
      3ft

    • Friday

      Friday:W wind around 10 kt, with gusts as high as 20 kt. A chance of snow.   Waves 1 to 2 ft.

      High: 24 °F

      W 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: 5:16 am CST Dec 1, 2025
Forecast Valid: 7am CST Dec 1, 2025-6pm CST Dec 7, 2025

View Nearby Observations

Detailed Forecast

Today
W wind 10 to 15 kt, with gusts as high as 20 kt. Partly sunny. Waves 1 to 3 ft.
Tonight
WNW wind 5 to 10 kt, with gusts as high as 15 kt. A chance of flurries after 5am. Waves 1 to 3 ft.
Tuesday
WNW wind 5 to 15 kt becoming SW in the afternoon. Winds could gust as high as 25 kt. A slight chance of snow after 1pm. Waves 1 to 2 ft.
Tuesday Night
SW wind 10 to 15 kt becoming NNW after midnight. Winds could gust as high as 25 kt. Snow likely. Waves 1 to 3 ft.
Wednesday
NNW wind around 15 kt, with gusts as high as 25 kt. Mostly sunny. Waves 1 ft or less.
Wednesday Night
NW wind 10 to 15 kt, with gusts as high as 25 kt. Partly cloudy. Waves 1 ft or less.
Thursday
WNW wind 10 to 15 kt becoming SW in the afternoon. Winds could gust as high as 30 kt. A slight chance of snow after noon. Waves 1 to 2 ft.
Thursday Night
SW wind 10 to 15 kt, with gusts as high as 30 kt. A chance of snow. Waves around 3 ft.
Friday
W wind around 10 kt, with gusts as high as 20 kt. A chance of snow. Waves 1 to 2 ft.

*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: 5:16 am CST Dec 1, 2025
Forecast Valid: 7am CST Dec 1, 2025-6pm CST Dec 7, 2025
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