Hazardous Weather Conditions

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Marquette, MI Local Forecast Office

21NM E Grand Portage MN

Marine Point Forecast

[NOTICE]
    • This Afternoon

      This Afternoon:S wind around 10 kt, with gusts as high as 20 kt. Mostly cloudy. Waves 1 ft or less.

      High: 42 °F

      S 10kt
      < 1ft

    • Tonight

      Tonight:S wind 5 to 15 kt becoming W after midnight. Winds could gust as high as 20 kt. Mostly cloudy during the early evening, then gradual clearing. Waves 1 ft or less.

      Low: 35 °F

      SW 15kt
      < 1ft

    • Tuesday

      Tuesday:NNW wind 5 to 10 kt becoming WSW in the afternoon. Sunny. Waves 1 ft or less.

      High: 47 °F

      WSW 10kt
      < 1ft

    • Tuesday Night

      Tuesday Night:Variable winds 5 kt or less. Mostly clear. Waves 1 ft or less.

      Low: 35 °F

      Light Wind
      < 1ft

    • Wednesday

      Wednesday:Variable winds 5 kt or less. Sunny. Waves 1 ft or less.

      High: 48 °F

      Light Wind
      < 1ft

    • Wednesday Night

      Wednesday Night:E wind 5 to 10 kt. Mostly cloudy. Waves 1 ft or less.

      Low: 38 °F

      E 10kt
      < 1ft

    • Thursday

      Thursday:E wind around 10 kt, with gusts as high as 20 kt. Mostly cloudy. Waves 1 ft or less.

      High: 49 °F

      E 10kt
      < 1ft

    • Thursday Night

      Thursday Night:E wind 10 to 15 kt becoming SE after midnight. Winds could gust as high as 20 kt. Showers likely and possibly a thunderstorm, then showers after 1am.   Waves 1 ft or less.

      Low: 40 °F

      E 15kt
      < 1ft

    • Friday

      Friday:SE wind around 10 kt, with gusts as high as 20 kt. A chance of showers.   Waves 1 ft or less.

      High: 46 °F

      SE 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: 3:13 pm CDT Apr 20, 2026
Forecast Valid: 4pm CDT Apr 20, 2026-6pm CDT Apr 26, 2026

View Nearby Observations

Detailed Forecast

This Afternoon
S wind around 10 kt, with gusts as high as 20 kt. Mostly cloudy. Waves 1 ft or less.
Tonight
S wind 5 to 15 kt becoming W after midnight. Winds could gust as high as 20 kt. Mostly cloudy during the early evening, then gradual clearing. Waves 1 ft or less.
Tuesday
NNW wind 5 to 10 kt becoming WSW in the afternoon. Sunny. Waves 1 ft or less.
Tuesday Night
Variable winds 5 kt or less. Mostly clear. Waves 1 ft or less.
Wednesday
Variable winds 5 kt or less. Sunny. Waves 1 ft or less.
Wednesday Night
E wind 5 to 10 kt. Mostly cloudy. Waves 1 ft or less.
Thursday
E wind around 10 kt, with gusts as high as 20 kt. Mostly cloudy. Waves 1 ft or less.
Thursday Night
E wind 10 to 15 kt becoming SE after midnight. Winds could gust as high as 20 kt. Showers likely and possibly a thunderstorm, then showers after 1am. Waves 1 ft or less.
Friday
SE wind around 10 kt, with gusts as high as 20 kt. A chance of showers. 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: 3:13 pm CDT Apr 20, 2026
Forecast Valid: 4pm CDT Apr 20, 2026-6pm CDT Apr 26, 2026
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