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Marquette, MI Local Forecast Office

21NM E Grand Portage MN

Marine Point Forecast

[NOTICE]
    • Today

      Today:E wind 5 to 10 kt. Increasing clouds. Waves 1 ft or less.

      High: 28 °F

      E 10kt
      < 1ft

    • Tonight

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

      Low: 24 °F

      E 10kt
      < 1ft

    • Thursday

      Thursday:ENE wind 10 to 15 kt, with gusts as high as 30 kt. Snow, mainly after 1pm. The snow could be heavy at times.   Waves 1 ft or less.

      High: 31 °F

      ENE 15kt
      < 1ft

    • Thursday Night

      Thursday Night:NNE wind 10 to 20 kt, with gusts as high as 35 kt. Snow and sleet, becoming all snow after 4am.   Waves 1 ft or less.

      Low: 26 °F

      NNE 20kt
      < 1ft

    • Friday

      Friday:N wind around 10 kt, with gusts as high as 25 kt. A slight chance of snow before 4pm, then a slight chance of snow and sleet.   Waves 1 ft or less.

      High: 34 °F

      N 10kt
      < 1ft

    • Friday Night

      Friday Night:ENE wind 10 to 20 kt, with gusts as high as 30 kt. A chance of snow before 7pm, then a chance of snow and sleet between 7pm and 10pm, then snow likely after 10pm.   Waves 1 ft or less.

      Low: 28 °F

      ENE 20kt
      < 1ft

    • Saturday

      Saturday:ENE wind 15 to 20 kt, with gusts as high as 35 kt. Snow.   Waves 1 ft or less.

      High: 32 °F

      ENE 20kt
      < 1ft

    • Saturday Night

      Saturday Night:NNW wind around 15 kt, with gusts as high as 30 kt. Snow showers likely.   Waves 1 ft or less.

      Low: 24 °F

      NNW 15kt
      < 1ft

    • Sunday

      Sunday:NNW wind 10 to 15 kt becoming W in the afternoon. Winds could gust as high as 30 kt. Mostly sunny. Waves 1 ft or less.

      High: 36 °F

      NNW 15kt
      < 1ft


High and low forecast temperature values represent air temperature.

Water temperature forecast is experimental.

Associated Zone Forecast which includes this point

Last Update: 9:13 am CDT Apr 1, 2026
Forecast Valid: 9am CDT Apr 1, 2026-6pm CDT Apr 7, 2026

View Nearby Observations

Detailed Forecast

Today
E wind 5 to 10 kt. Increasing clouds. Waves 1 ft or less.
Tonight
E wind 5 to 10 kt, with gusts as high as 20 kt. Mostly cloudy. Waves 1 ft or less.
Thursday
ENE wind 10 to 15 kt, with gusts as high as 30 kt. Snow, mainly after 1pm. The snow could be heavy at times. Waves 1 ft or less.
Thursday Night
NNE wind 10 to 20 kt, with gusts as high as 35 kt. Snow and sleet, becoming all snow after 4am. Waves 1 ft or less.
Friday
N wind around 10 kt, with gusts as high as 25 kt. A slight chance of snow before 4pm, then a slight chance of snow and sleet. Waves 1 ft or less.
Friday Night
ENE wind 10 to 20 kt, with gusts as high as 30 kt. A chance of snow before 7pm, then a chance of snow and sleet between 7pm and 10pm, then snow likely after 10pm. Waves 1 ft or less.
Saturday
ENE wind 15 to 20 kt, with gusts as high as 35 kt. Snow. Waves 1 ft or less.
Saturday Night
NNW wind around 15 kt, with gusts as high as 30 kt. Snow showers likely. Waves 1 ft or less.
Sunday
NNW wind 10 to 15 kt becoming W in the afternoon. Winds could gust as high as 30 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: 47.92°N 89.17°W
Last Update: 9:13 am CDT Apr 1, 2026
Forecast Valid: 9am CDT Apr 1, 2026-6pm CDT Apr 7, 2026
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