National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Grand Marais, The Bay of Grand Marais (KGNA)

Lat: 47.75°NLon: 90.34°WElev: 610ft.

62°F

17°C

Humidity 84%
Wind Speed N 6 mph
Barometer 29.89 in (1011.7 mb)
Dewpoint 57°F (14°C)
Visibility NA
Last update 2 Sep 5:56 am CDT
Extended Forecast for

24 Miles E Grand Portage MN

  • Today

    Today: Mostly sunny, with a high near 72. Southwest wind around 5 mph.

    High: 72 °F

    Mostly Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 59. Southwest wind around 5 mph becoming north after midnight.

    Low: 59 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 70. Northeast wind around 5 mph.

    High: 70 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Increasing clouds, with a low around 59. East wind 5 to 10 mph.

    Low: 59 °F

    Increasing
    Clouds

  • Friday

    Friday: Partly sunny, with a high near 68. East wind 10 to 15 mph, with gusts as high as 20 mph.

    High: 68 °F

    Partly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 59.

    Low: 59 °F

    Mostly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 70.

    High: 70 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: A chance of showers and thunderstorms after 2am. Mostly cloudy, with a low around 60.

    Low: 60 °F

    Partly Cloudy
    then Chance
    T-storms

  • Sunday

    Sunday: A chance of showers and thunderstorms before 8am, then a chance of showers between 8am and 2pm. Mostly cloudy, with a high near 71.

    High: 71 °F

    Chance
    T-storms then
    Chance
    Showers

Detailed Forecast

Today
Mostly sunny, with a high near 72. Southwest wind around 5 mph.
Tonight
Partly cloudy, with a low around 59. Southwest wind around 5 mph becoming north after midnight.
Thursday
Mostly sunny, with a high near 70. Northeast wind around 5 mph.
Thursday Night
Increasing clouds, with a low around 59. East wind 5 to 10 mph.
Friday
Partly sunny, with a high near 68. East wind 10 to 15 mph, with gusts as high as 20 mph.
Friday Night
Mostly cloudy, with a low around 59.
Saturday
Partly sunny, with a high near 70.
Saturday Night
A chance of showers and thunderstorms after 2am. Mostly cloudy, with a low around 60.
Sunday
A chance of showers and thunderstorms before 8am, then a chance of showers between 8am and 2pm. Mostly cloudy, with a high near 71.
Sunday Night
A chance of showers between 8pm and 2am. Mostly cloudy, with a low around 58.
Labor Day
Mostly cloudy, with a high near 66.
Monday Night
A chance of showers. Mostly cloudy, with a low around 56.
Tuesday
A chance of showers. Mostly cloudy, with a high near 66.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
24 Miles E Grand Portage MN
 47.94°N 89.16°W (Elev. 600 ft)
Last Update:
4:18 am EDT Sep 2, 2026
Forecast Valid:
7am EDT Sep 2, 2026-6pm EDT Sep 8, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation