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.

63°F

17°C

Humidity 84%
Wind Speed W 3 mph
Barometer 30.07 in (1018.2 mb)
Dewpoint 58°F (14°C)
Visibility NA
Last update 28 Aug 5:56 pm CDT
Extended Forecast for

Grand Marais MN

  • Tonight

    Tonight: Partly cloudy, with a low around 54. Southwest wind around 5 mph becoming calm.

    Low: 54 °F

    Partly Cloudy

  • Saturday

    Saturday: A slight chance of showers between 10am and 3pm. Mostly cloudy, with a high near 69. Calm wind becoming southeast around 5 mph. Chance of precipitation is 20%.

    High: 69 °F

    Slight Chance
    Showers

  • Saturday Night

    Saturday Night: Patchy fog between 8pm and 10pm. Otherwise, cloudy, with a low around 59. Calm wind.

    Low: 59 °F

    Patchy Fog
    then Cloudy

  • Sunday

    Sunday: A 20 percent chance of showers after 1pm. Mostly cloudy, with a high near 71. Light northeast wind becoming east 5 to 10 mph in the morning. Winds could gust as high as 20 mph.

    High: 71 °F

    Mostly Cloudy
    then Slight
    Chance
    Showers

  • Sunday Night

    Sunday Night: A chance of showers, with thunderstorms also possible after 4am. Cloudy, with a low around 60. East wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 50%.

    Low: 60 °F

    Chance
    Showers

  • Monday

    Monday: A chance of showers and thunderstorms. Mostly cloudy, with a high near 75. East wind around 5 mph, with gusts as high as 15 mph. Chance of precipitation is 40%.

    High: 75 °F

    Chance
    Showers

  • Monday Night

    Monday Night: A slight chance of showers before 1am. Mostly cloudy, with a low around 60. Northeast wind around 5 mph becoming calm.

    Low: 60 °F

    Slight Chance
    Showers

  • Tuesday

    Tuesday: Mostly sunny, with a high near 79. West wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 79 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 59. West wind around 5 mph becoming calm.

    Low: 59 °F

    Partly Cloudy

Detailed Forecast

Tonight
Partly cloudy, with a low around 54. Southwest wind around 5 mph becoming calm.
Saturday
A slight chance of showers between 10am and 3pm. Mostly cloudy, with a high near 69. Calm wind becoming southeast around 5 mph. Chance of precipitation is 20%.
Saturday Night
Patchy fog between 8pm and 10pm. Otherwise, cloudy, with a low around 59. Calm wind.
Sunday
A 20 percent chance of showers after 1pm. Mostly cloudy, with a high near 71. Light northeast wind becoming east 5 to 10 mph in the morning. Winds could gust as high as 20 mph.
Sunday Night
A chance of showers, with thunderstorms also possible after 4am. Cloudy, with a low around 60. East wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 50%.
Monday
A chance of showers and thunderstorms. Mostly cloudy, with a high near 75. East wind around 5 mph, with gusts as high as 15 mph. Chance of precipitation is 40%.
Monday Night
A slight chance of showers before 1am. Mostly cloudy, with a low around 60. Northeast wind around 5 mph becoming calm.
Tuesday
Mostly sunny, with a high near 79. West wind 5 to 10 mph, with gusts as high as 20 mph.
Tuesday Night
Partly cloudy, with a low around 59. West wind around 5 mph becoming calm.
Wednesday
Mostly sunny, with a high near 76. Calm wind becoming southwest around 5 mph.
Wednesday Night
Partly cloudy, with a low around 57. Calm wind.
Thursday
A slight chance of showers. Mostly sunny, with a high near 73. Calm wind becoming southeast around 5 mph in the afternoon.
Thursday Night
A chance of showers. Mostly cloudy, with a low around 57. East wind around 5 mph becoming calm.
Friday
A slight chance of showers. Partly sunny, with a high near 74. Calm wind becoming east around 5 mph in the morning.
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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:
5:56 pm CDT Aug 28, 2026
Forecast Valid:
6pm CDT Aug 28, 2026-6pm CDT Sep 4, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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