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

Hazardous Weather Conditions

Current conditions at

Grand Marais, The Bay of Grand Marais (KGNA)

Lat: 47.75°NLon: 90.34°WElev: 610ft.

62°F

17°C

Humidity 80%
Wind Speed Calm
Barometer 30.10 in (1018.7 mb)
Dewpoint 56°F (13°C)
Visibility NA
Last update 5 Sep 10:56 pm CDT
Extended Forecast for

Grand Marais MN

  • Tonight

    Tonight: Partly cloudy, with a low around 56. Northeast wind around 5 mph becoming calm.

    Low: 56 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 71. Northeast wind around 5 mph becoming southeast in the afternoon.

    High: 71 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 59. Northeast wind around 5 mph becoming calm.

    Low: 59 °F

    Mostly Cloudy

  • Labor Day

    Labor Day: A 30 percent chance of showers, mainly after 1pm. Partly sunny, with a high near 70. Calm wind becoming east around 5 mph in the afternoon.

    High: 70 °F

    Chance
    Showers

  • Monday Night

    Monday Night: Showers likely, then showers and possibly a thunderstorm after 1am. Low around 60. East wind 5 to 10 mph becoming south after midnight. Winds could gust as high as 15 mph. Chance of precipitation is 100%. New rainfall amounts between three quarters and one inch possible.

    Low: 60 °F

    Showers
    Likely then
    Showers

  • Tuesday

    Tuesday: Showers likely and possibly a thunderstorm before 10am, then showers likely between 10am and 1pm. Mostly cloudy, with a high near 72. South wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 70%. New precipitation amounts between a quarter and half of an inch possible.

    High: 72 °F

    Showers
    Likely

  • Tuesday Night

    Tuesday Night: A slight chance of showers. Mostly cloudy, with a low around 61. West wind 5 to 10 mph, with gusts as high as 25 mph.

    Low: 61 °F

    Slight Chance
    Showers

  • Wednesday

    Wednesday: Mostly sunny, with a high near 71. Breezy, with a west wind around 15 mph, with gusts as high as 35 mph.

    High: 71 °F

    Mostly Sunny
    and Breezy

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 52. Northwest wind 5 to 10 mph, with gusts as high as 30 mph.

    Low: 52 °F

    Partly Cloudy

Detailed Forecast

Tonight
Partly cloudy, with a low around 56. Northeast wind around 5 mph becoming calm.
Sunday
Mostly sunny, with a high near 71. Northeast wind around 5 mph becoming southeast in the afternoon.
Sunday Night
Mostly cloudy, with a low around 59. Northeast wind around 5 mph becoming calm.
Labor Day
A 30 percent chance of showers, mainly after 1pm. Partly sunny, with a high near 70. Calm wind becoming east around 5 mph in the afternoon.
Monday Night
Showers likely, then showers and possibly a thunderstorm after 1am. Low around 60. East wind 5 to 10 mph becoming south after midnight. Winds could gust as high as 15 mph. Chance of precipitation is 100%. New rainfall amounts between three quarters and one inch possible.
Tuesday
Showers likely and possibly a thunderstorm before 10am, then showers likely between 10am and 1pm. Mostly cloudy, with a high near 72. South wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 70%. New precipitation amounts between a quarter and half of an inch possible.
Tuesday Night
A slight chance of showers. Mostly cloudy, with a low around 61. West wind 5 to 10 mph, with gusts as high as 25 mph.
Wednesday
Mostly sunny, with a high near 71. Breezy, with a west wind around 15 mph, with gusts as high as 35 mph.
Wednesday Night
Partly cloudy, with a low around 52. Northwest wind 5 to 10 mph, with gusts as high as 30 mph.
Thursday
Mostly sunny, with a high near 69. Northwest wind around 5 mph becoming southwest in the afternoon. Winds could gust as high as 15 mph.
Thursday Night
Partly cloudy, with a low around 52. Calm wind.
Friday
A slight chance of showers. Mostly sunny, with a high near 71. Southwest wind 5 to 10 mph, with gusts as high as 20 mph.
Friday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 54. West wind around 5 mph, with gusts as high as 15 mph.
Saturday
A chance of showers. Mostly sunny, with a high near 70. West wind 5 to 10 mph, with gusts as high as 20 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Grand Marais MN
 47.76°N 90.33°W
Last Update:
9:31 pm CDT Sep 5, 2026
Forecast Valid:
11pm CDT Sep 5, 2026-6pm CDT Sep 12, 2026
 
Forecast Discussion
 
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Additional Resources

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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