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Duluth, MN Local Forecast Office

10NM SW Grand Portage MN

Marine Point Forecast

[NOTICE]
    • Thursday

      Thursday:NE wind 10 to 20 kt, with gusts as high as 30 kt. Snow, mainly before 4pm. The snow could be heavy at times.   Waves 1 ft or less.

      High: 29 °F

      NE 20kt
      < 1ft

    • Thursday Night

      Thursday Night:NNE wind around 10 kt, with gusts as high as 25 kt. Snow likely, mainly after 5am.   Waves 1 ft or less.

      Low: 28 °F

      NNE 10kt
      < 1ft

    • Friday

      Friday:N wind around 10 kt, with gusts as high as 25 kt. Snow likely.   Waves 1 ft or less.

      High: 28 °F

      N 10kt
      < 1ft

    • Friday Night

      Friday Night:N wind 5 to 10 kt, with gusts as high as 20 kt. A chance of snow.   Waves 1 ft or less.

      Low: 20 °F

      N 10kt
      < 1ft

    • Saturday

      Saturday:N wind 5 to 10 kt, with gusts as high as 15 kt. A chance of snow, mainly before noon.   Waves 1 ft or less.

      High: 25 °F

      N 10kt
      < 1ft

    • Saturday Night

      Saturday Night:NNW wind 5 to 10 kt, with gusts as high as 20 kt. Mostly cloudy. Waves 1 ft or less.

      Low: 15 °F

      NNW 10kt
      < 1ft

    • Sunday

      Sunday:N wind around 10 kt, with gusts as high as 25 kt. Partly sunny. Waves 1 ft or less.

      High: 23 °F

      N 10kt
      < 1ft

    • Sunday Night

      Sunday Night:N wind around 10 kt, with gusts as high as 25 kt. Partly cloudy. Waves 1 ft or less.

      Low: 6 °F

      N 10kt
      < 1ft

    • Monday

      Monday:N 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: 17 °F

      N 10kt
      < 1ft


High and low forecast temperature values represent air temperature.

Water temperature forecast is experimental.

Associated Zone Forecast which includes this point

Last Update: 1:31 am CST Feb 19, 2026
Forecast Valid: 2am CST Feb 19, 2026-6pm CST Feb 25, 2026

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Detailed Forecast

Thursday
NE wind 10 to 20 kt, with gusts as high as 30 kt. Snow, mainly before 4pm. The snow could be heavy at times. Waves 1 ft or less.
Thursday Night
NNE wind around 10 kt, with gusts as high as 25 kt. Snow likely, mainly after 5am. Waves 1 ft or less.
Friday
N wind around 10 kt, with gusts as high as 25 kt. Snow likely. Waves 1 ft or less.
Friday Night
N wind 5 to 10 kt, with gusts as high as 20 kt. A chance of snow. Waves 1 ft or less.
Saturday
N wind 5 to 10 kt, with gusts as high as 15 kt. A chance of snow, mainly before noon. Waves 1 ft or less.
Saturday Night
NNW wind 5 to 10 kt, with gusts as high as 20 kt. Mostly cloudy. Waves 1 ft or less.
Sunday
N wind around 10 kt, with gusts as high as 25 kt. Partly sunny. Waves 1 ft or less.
Sunday Night
N wind around 10 kt, with gusts as high as 25 kt. Partly cloudy. Waves 1 ft or less.
Monday
N 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.

*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: 1:31 am CST Feb 19, 2026
Forecast Valid: 2am CST Feb 19, 2026-6pm CST Feb 25, 2026
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