Hazardous Weather Conditions

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Marquette, MI Local Forecast Office

21NM E Grand Portage MN

Marine Point Forecast

[NOTICE]
    • Sunday

      Sunday:SSW wind 10 to 15 kt, with gusts as high as 20 kt. A slight chance of showers after 5pm.  Widespread haze.  Waves 1 ft or less.

      High: 71 °F

      SSW 15kt
      < 1ft

    • Sunday Night

      Sunday Night:WSW wind 5 to 15 kt. A chance of showers and thunderstorms, mainly before 9pm.  Widespread haze before 11pm.  Waves 1 ft or less.

      Low: 57 °F

      WSW 15kt
      < 1ft

    • Monday

      Monday:Variable winds 5 kt or less. Areas of smoke.  Waves 1 ft or less.

      High: 78 °F

      Light Wind
      < 1ft

    • Monday Night

      Monday Night:Variable winds 5 kt or less. A chance of showers and thunderstorms after 1am.   Waves 1 ft or less.

      Low: 57 °F

      Light Wind
      < 1ft

    • Tuesday

      Tuesday:Variable winds 5 kt or less. A chance of showers and thunderstorms before 10am, then a chance of showers between 10am and 1pm, then showers likely and possibly a thunderstorm after 1pm.   Waves 1 ft or less.

      High: 74 °F

      Light Wind
      < 1ft

    • Tuesday Night

      Tuesday Night:NNE wind 5 to 10 kt. Showers likely and possibly a thunderstorm.   Waves 1 ft or less.

      Low: 56 °F

      NNE 10kt
      < 1ft

    • Wednesday

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

      High: 70 °F

      NNE 10kt
      < 1ft

    • Wednesday Night

      Wednesday Night:NE wind 5 to 10 kt becoming N after midnight. A chance of showers.   Waves 1 ft or less.

      Low: 55 °F

      NE 10kt
      < 1ft

    • Thursday

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

      High: 72 °F

      Light Wind
      < 1ft


High and low forecast temperature values represent air temperature.

Water temperature forecast is experimental.

Associated Zone Forecast which includes this point

Last Update: 2:10 am CDT Jul 13, 2025
Forecast Valid: 3am CDT Jul 13, 2025-6pm CDT Jul 19, 2025

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Detailed Forecast

Sunday
SSW wind 10 to 15 kt, with gusts as high as 20 kt. A slight chance of showers after 5pm. Widespread haze. Waves 1 ft or less.
Sunday Night
WSW wind 5 to 15 kt. A chance of showers and thunderstorms, mainly before 9pm. Widespread haze before 11pm. Waves 1 ft or less.
Monday
Variable winds 5 kt or less. Areas of smoke. Waves 1 ft or less.
Monday Night
Variable winds 5 kt or less. A chance of showers and thunderstorms after 1am. Waves 1 ft or less.
Tuesday
Variable winds 5 kt or less. A chance of showers and thunderstorms before 10am, then a chance of showers between 10am and 1pm, then showers likely and possibly a thunderstorm after 1pm. Waves 1 ft or less.
Tuesday Night
NNE wind 5 to 10 kt. Showers likely and possibly a thunderstorm. Waves 1 ft or less.
Wednesday
NNE wind around 10 kt, with gusts as high as 20 kt. A chance of showers. Waves 1 ft or less.
Wednesday Night
NE wind 5 to 10 kt becoming N after midnight. A chance of showers. Waves 1 ft or less.
Thursday
Variable winds 5 kt or less. 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: 2:10 am CDT Jul 13, 2025
Forecast Valid: 3am CDT Jul 13, 2025-6pm CDT Jul 19, 2025
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