For More Weather Information:

Marquette, MI Local Forecast Office

21NM E Grand Portage MN

Marine Point Forecast

[NOTICE]
    • Tonight

      Tonight:W wind 5 to 10 km/h becoming SSW 25 to 35 km/h. Winds could gust as high as 50 km/h. Mostly cloudy. Waves 1 m or less.

      Low: -8 °CRising Temperatures

      ⇑SSW 35km/h
      < 1m

    • Tuesday

      Tuesday:SW wind 35 to 45 km/h, with gusts as high as 70 km/h. A slight chance of sleet before 7am.   Waves 1 m or less.

      High: 4 °C

      SW 45km/h
      < 1m

    • Tuesday Night

      Tuesday Night:W wind 35 to 45 km/h becoming NW 25 to 35 km/h after midnight. Winds could gust as high as 65 km/h. Mostly cloudy. Waves 1 m or less.

      Low: -9 °C

      W 45km/h⇓
      < 1m

    • Wednesday

      Wednesday:NW wind 15 to 25 km/h becoming SSW in the afternoon. Winds could gust as high as 40 km/h. Partly sunny. Waves 1 m or less.

      High: 1 °C

      NW 25km/h
      < 1m

    • Wednesday Night

      Wednesday Night:S wind around 25 km/h, with gusts as high as 50 km/h. A chance of snow showers before midnight, then rain likely, possibly mixed with snow showers.   Waves 1 m or less.

      Low: -4 °C

      S 25km/h
      < 1m

    • Thursday

      Thursday:SW wind 25 to 30 km/h becoming N 35 to 40 km/h in the morning. Winds could gust as high as 70 km/h. Snow showers likely.   Waves 1 m or less.

      High: 0 °C

      ⇑N 40km/h
      < 1m

    • Thursday Night

      Thursday Night:N wind 30 to 35 km/h decreasing to 20 to 25 km/h after midnight. Winds could gust as high as 70 km/h. Mostly cloudy. Waves 1 m or less.

      Low: -17 °C

      N 35km/h⇓
      < 1m

    • Friday

      Friday:N wind 15 to 20 km/h becoming SSE in the afternoon. Winds could gust as high as 40 km/h. A chance of snow showers.   Waves 1 m or less.

      High: -6 °C

      SSE 20km/h
      < 1m

    • Friday Night

      Friday Night:SSE wind around 25 km/h becoming SW after midnight. Winds could gust as high as 50 km/h. Snow showers likely.   Waves 1 m or less.

      Low: -9 °C

      S 25km/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: 8:18 pm CST Dec 15, 2025
Forecast Valid: 9pm CST Dec 15, 2025-6pm CST Dec 22, 2025

View Nearby Observations

Detailed Forecast

Tonight
W wind 5 to 10 km/h becoming SSW 25 to 35 km/h. Winds could gust as high as 50 km/h. Mostly cloudy. Waves 1 m or less.
Tuesday
SW wind 35 to 45 km/h, with gusts as high as 70 km/h. A slight chance of sleet before 7am. Waves 1 m or less.
Tuesday Night
W wind 35 to 45 km/h becoming NW 25 to 35 km/h after midnight. Winds could gust as high as 65 km/h. Mostly cloudy. Waves 1 m or less.
Wednesday
NW wind 15 to 25 km/h becoming SSW in the afternoon. Winds could gust as high as 40 km/h. Partly sunny. Waves 1 m or less.
Wednesday Night
S wind around 25 km/h, with gusts as high as 50 km/h. A chance of snow showers before midnight, then rain likely, possibly mixed with snow showers. Waves 1 m or less.
Thursday
SW wind 25 to 30 km/h becoming N 35 to 40 km/h in the morning. Winds could gust as high as 70 km/h. Snow showers likely. Waves 1 m or less.
Thursday Night
N wind 30 to 35 km/h decreasing to 20 to 25 km/h after midnight. Winds could gust as high as 70 km/h. Mostly cloudy. Waves 1 m or less.
Friday
N wind 15 to 20 km/h becoming SSE in the afternoon. Winds could gust as high as 40 km/h. A chance of snow showers. Waves 1 m or less.
Friday Night
SSE wind around 25 km/h becoming SW after midnight. Winds could gust as high as 50 km/h. Snow showers likely. 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.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

Point Forecast: 47.92°N 89.17°W
Last Update: 8:18 pm CST Dec 15, 2025
Forecast Valid: 9pm CST Dec 15, 2025-6pm CST Dec 22, 2025
  Forecast Discussion
  Get as KML Get as XML

RADAR & SATELLITE IMAGES

 Link to Satellite Data