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.

47°F

8°C

Humidity 97%
Wind Speed Calm
Barometer 29.91 in (1013.2 mb)
Dewpoint 46°F (8°C)
Visibility NA
Last update 15 Oct 7:56 pm CDT
Extended Forecast for

Grand Marais MN

  • Tonight

    Tonight: Showers likely, mainly before 1am. Cloudy, with a low around 41. Breezy, with a light and variable wind becoming north 15 to 20 mph in the evening. Winds could gust as high as 35 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 41 °F

    Showers
    Likely then
    Chance
    Showers and
    Breezy

  • Friday

    Friday: A slight chance of showers between 8am and 9am. Mostly cloudy, then gradually becoming sunny, with a high near 44. Windy, with a north wind 20 to 25 mph decreasing to 15 to 20 mph in the afternoon. Winds could gust as high as 40 mph. Chance of precipitation is 20%.

    High: 44 °F

    Windy. Slight
    Chance
    Showers then
    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 37. Northwest wind 5 to 10 mph becoming west after midnight. Winds could gust as high as 20 mph.

    Low: 37 °F

    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 51. Windy, with a southwest wind 15 to 25 mph, with gusts as high as 35 mph.

    High: 51 °F

    Sunny and
    Windy

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 43. Windy, with a southwest wind 20 to 25 mph, with gusts as high as 30 mph.

    Low: 43 °F

    Mostly Clear
    and Windy

  • Sunday

    Sunday: Mostly sunny, with a high near 55. Windy, with a southwest wind 20 to 25 mph, with gusts as high as 35 mph.

    High: 55 °F

    Mostly Sunny
    and Windy

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 41. West wind 5 to 10 mph, with gusts as high as 20 mph.

    Low: 41 °F

    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 55. Calm wind becoming southwest around 5 mph.

    High: 55 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 42. Calm wind.

    Low: 42 °F

    Mostly Clear

Detailed Forecast

Tonight
Showers likely, mainly before 1am. Cloudy, with a low around 41. Breezy, with a light and variable wind becoming north 15 to 20 mph in the evening. Winds could gust as high as 35 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.
Friday
A slight chance of showers between 8am and 9am. Mostly cloudy, then gradually becoming sunny, with a high near 44. Windy, with a north wind 20 to 25 mph decreasing to 15 to 20 mph in the afternoon. Winds could gust as high as 40 mph. Chance of precipitation is 20%.
Friday Night
Partly cloudy, with a low around 37. Northwest wind 5 to 10 mph becoming west after midnight. Winds could gust as high as 20 mph.
Saturday
Sunny, with a high near 51. Windy, with a southwest wind 15 to 25 mph, with gusts as high as 35 mph.
Saturday Night
Mostly clear, with a low around 43. Windy, with a southwest wind 20 to 25 mph, with gusts as high as 30 mph.
Sunday
Mostly sunny, with a high near 55. Windy, with a southwest wind 20 to 25 mph, with gusts as high as 35 mph.
Sunday Night
Partly cloudy, with a low around 41. West wind 5 to 10 mph, with gusts as high as 20 mph.
Monday
Sunny, with a high near 55. Calm wind becoming southwest around 5 mph.
Monday Night
Mostly clear, with a low around 42. Calm wind.
Tuesday
Sunny, with a high near 54. Calm wind becoming east around 5 mph in the afternoon.
Tuesday Night
Partly cloudy, with a low around 44. East wind around 5 mph.
Wednesday
Mostly sunny, with a high near 54. Southeast wind around 5 mph.
Wednesday Night
A chance of showers. Mostly cloudy, with a low around 48. East wind 5 to 10 mph becoming south after midnight.
Thursday
A slight chance of showers. Partly sunny, with a high near 56. South wind 5 to 10 mph becoming east in the afternoon.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Grand Marais MN
 47.74°N 90.33°W
Last Update:
8:21 pm CDT Oct 15, 2026
Forecast Valid:
8pm CDT Oct 15, 2026-6pm CDT Oct 22, 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