Hazardous Weather Conditions

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Marquette, MI Local Forecast Office

21NM E Grand Portage MN

Marine Point Forecast

[NOTICE]
    • Today

      Today:NE wind 5 to 10 kt becoming SW in the afternoon. A chance of showers and thunderstorms.  Widespread haze after 4pm.  Waves 1 ft or less.

      High: 64 °F

      SW 10kt
      < 1ft

    • Tonight

      Tonight:WSW wind around 10 kt. A slight chance of showers and thunderstorms before 8pm.  Widespread haze before 8pm, then Widespread haze after 11pm. Areas of smoke between 8pm and 11pm.  Waves 1 ft or less.

      Low: 54 °F

      WSW 10kt
      < 1ft

    • Sunday

      Sunday:SW wind 10 to 15 kt, with gusts as high as 20 kt. Sunny. Waves 1 ft or less.

      High: 76 °F

      SW 15kt
      < 1ft

    • Sunday Night

      Sunday Night:WSW wind 5 to 10 kt, with gusts as high as 20 kt. A slight chance of showers and thunderstorms before 10pm, then a slight chance of showers between 10pm and 1am.   Waves 1 ft or less.

      Low: 59 °F

      WSW 10kt
      < 1ft

    • Monday

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

      High: 77 °F

      Light Wind
      < 1ft

    • Monday Night

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

      Low: 56 °F

      Light Wind
      < 1ft

    • Tuesday

      Tuesday:E wind 5 to 10 kt becoming NE in the afternoon. Showers likely, with thunderstorms also possible after 1pm.   Waves 1 ft or less.

      High: 71 °F

      ENE 10kt
      < 1ft

    • Tuesday Night

      Tuesday Night:Variable winds 5 kt or less. A chance of showers.   Waves 1 ft or less.

      Low: 55 °F

      Light Wind
      < 1ft

    • Wednesday

      Wednesday:NE wind 5 to 10 kt. A chance of showers.   Waves 1 ft or less.

      High: 70 °F

      NE 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: 5:41 am CDT Jul 12, 2025
Forecast Valid: 5am CDT Jul 12, 2025-6pm CDT Jul 18, 2025

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Detailed Forecast

Today
NE wind 5 to 10 kt becoming SW in the afternoon. A chance of showers and thunderstorms. Widespread haze after 4pm. Waves 1 ft or less.
Tonight
WSW wind around 10 kt. A slight chance of showers and thunderstorms before 8pm. Widespread haze before 8pm, then Widespread haze after 11pm. Areas of smoke between 8pm and 11pm. Waves 1 ft or less.
Sunday
SW wind 10 to 15 kt, with gusts as high as 20 kt. Sunny. Waves 1 ft or less.
Sunday Night
WSW wind 5 to 10 kt, with gusts as high as 20 kt. A slight chance of showers and thunderstorms before 10pm, then a slight chance of showers between 10pm and 1am. Waves 1 ft or less.
Monday
Variable winds 5 kt or less. Sunny. Waves 1 ft or less.
Monday Night
Variable winds 5 kt or less. A chance of showers after 1am. Waves 1 ft or less.
Tuesday
E wind 5 to 10 kt becoming NE in the afternoon. Showers likely, with thunderstorms also possible after 1pm. Waves 1 ft or less.
Tuesday Night
Variable winds 5 kt or less. A chance of showers. Waves 1 ft or less.
Wednesday
NE wind 5 to 10 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: 5:41 am CDT Jul 12, 2025
Forecast Valid: 5am CDT Jul 12, 2025-6pm CDT Jul 18, 2025
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