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Marquette, MI Local Forecast Office

21NM E Grand Portage MN

Marine Point Forecast

[NOTICE]
    • Today

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

      High: 71 °F

      Light Wind
      < 1ft

    • Tonight

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

      Low: 52 °F

      Light Wind
      < 1ft

    • Thursday

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

      High: 72 °F

      Light Wind
      < 1ft

    • Thursday Night

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

      Low: 54 °F

      Light Wind
      < 1ft

    • Friday

      Friday:Variable winds 5 kt or less. A slight chance of showers, then a chance of showers and thunderstorms after 1pm.   Waves 1 ft or less.

      High: 74 °F

      Light Wind
      < 1ft

    • Friday Night

      Friday Night:Variable winds 5 kt or less. Showers likely and possibly a thunderstorm.   Waves 1 ft or less.

      Low: 56 °F

      Light Wind
      < 1ft

    • Saturday

      Saturday:N wind 5 to 10 kt becoming W in the afternoon. A chance of showers before 1pm.   Waves 1 ft or less.

      High: 75 °F

      W 10kt
      < 1ft

    • Saturday Night

      Saturday Night:WSW wind 5 to 10 kt. Partly cloudy. Waves 1 ft or less.

      Low: 56 °F

      WSW 10kt
      < 1ft

    • Sunday

      Sunday:SW wind 5 to 10 kt, with gusts as high as 15 kt. Sunny. Waves 1 ft or less.

      High: 75 °F

      SW 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: 5:40 am CDT Jul 9, 2025
Forecast Valid: 9am CDT Jul 9, 2025-6pm CDT Jul 15, 2025

View Nearby Observations

Detailed Forecast

Today
Variable winds 5 kt or less. Sunny. Waves 1 ft or less.
Tonight
Variable winds 5 kt or less. Mostly clear. Waves 1 ft or less.
Thursday
Variable winds 5 kt or less. Mostly sunny. Waves 1 ft or less.
Thursday Night
Variable winds 5 kt or less. A slight chance of showers and thunderstorms after 1am. Waves 1 ft or less.
Friday
Variable winds 5 kt or less. A slight chance of showers, then a chance of showers and thunderstorms after 1pm. Waves 1 ft or less.
Friday Night
Variable winds 5 kt or less. Showers likely and possibly a thunderstorm. Waves 1 ft or less.
Saturday
N wind 5 to 10 kt becoming W in the afternoon. A chance of showers before 1pm. Waves 1 ft or less.
Saturday Night
WSW wind 5 to 10 kt. Partly cloudy. Waves 1 ft or less.
Sunday
SW wind 5 to 10 kt, with gusts as high as 15 kt. 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: 5:40 am CDT Jul 9, 2025
Forecast Valid: 9am CDT Jul 9, 2025-6pm CDT Jul 15, 2025
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