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Marquette, MI Local Forecast Office

21NM E Grand Portage MN

Marine Point Forecast

[NOTICE]
    • Overnight

      Overnight:SW wind 35 to 40 km/h, with gusts as high as 65 km/h. Partly cloudy. Waves 1 m or less.

      Low: 7 °C

      SW 40km/h
      < 1m

    • Sunday

      Sunday:SW wind 40 to 45 km/h, with gusts as high as 70 km/h. Mostly sunny. Waves 1 m or less.

      High: 13 °C

      SW 45km/h
      < 1m

    • Sunday Night

      Sunday Night:WSW wind 20 to 30 km/h becoming WNW 5 to 10 km/h. Winds could gust as high as 45 km/h. Partly cloudy. Waves 1 m or less.

      Low: 6 °C

      WSW 30km/h⇓
      < 1m

    • Monday

      Monday:NNW wind 5 to 10 km/h becoming E in the afternoon. Mostly sunny. Waves 1 m or less.

      High: 12 °C

      N 10km/h
      < 1m

    • Monday Night

      Monday Night:E wind 5 to 10 km/h. Mostly clear. Waves 1 m or less.

      Low: 7 °C

      E 10km/h
      < 1m

    • Tuesday

      Tuesday:SE wind 5 to 10 km/h. Sunny. Waves 1 m or less.

      High: 12 °C

      SE 10km/h
      < 1m

    • Tuesday Night

      Tuesday Night:ESE wind 10 to 15 km/h becoming SSW after midnight. Partly cloudy. Waves 1 m or less.

      Low: 9 °C

      SSW 15km/h
      < 1m

    • Wednesday

      Wednesday:SW wind 10 to 15 km/h. Mostly sunny. Waves 1 m or less.

      High: 13 °C

      SW 15km/h
      < 1m

    • Wednesday Night

      Wednesday Night:SW wind around 10 km/h becoming NNE after midnight. Mostly cloudy. Waves 1 m or less.

      Low: 8 °C

      W 10km/h
      < 1m


High and low forecast temperature values represent air temperature.

Water temperature forecast is experimental.

Associated Zone Forecast which includes this point

Last Update: 10:07 pm CDT Oct 17, 2026
Forecast Valid: 11pm CDT Oct 17, 2026-6pm CDT Oct 24, 2026

View Nearby Observations

Detailed Forecast

Overnight
SW wind 35 to 40 km/h, with gusts as high as 65 km/h. Partly cloudy. Waves 1 m or less.
Sunday
SW wind 40 to 45 km/h, with gusts as high as 70 km/h. Mostly sunny. Waves 1 m or less.
Sunday Night
WSW wind 20 to 30 km/h becoming WNW 5 to 10 km/h. Winds could gust as high as 45 km/h. Partly cloudy. Waves 1 m or less.
Monday
NNW wind 5 to 10 km/h becoming E in the afternoon. Mostly sunny. Waves 1 m or less.
Monday Night
E wind 5 to 10 km/h. Mostly clear. Waves 1 m or less.
Tuesday
SE wind 5 to 10 km/h. Sunny. Waves 1 m or less.
Tuesday Night
ESE wind 10 to 15 km/h becoming SSW after midnight. Partly cloudy. Waves 1 m or less.
Wednesday
SW wind 10 to 15 km/h. Mostly sunny. Waves 1 m or less.
Wednesday Night
SW wind around 10 km/h becoming NNE after midnight. Mostly cloudy. Waves 1 m 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: 10:07 pm CDT Oct 17, 2026
Forecast Valid: 11pm CDT Oct 17, 2026-6pm CDT Oct 24, 2026
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