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 86%
Wind Speed Calm
Barometer 30.18 in (1022.5 mb)
Dewpoint 43°F (6°C)
Visibility NA
Last update 15 Oct 6:56 am CDT
Extended Forecast for

Grand Marais MN

  • Today

    Today: Showers, mainly after noon. High near 47. Southeast wind around 5 mph becoming calm in the morning. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.

    High: 47 °F

    Chance
    Showers then
    Showers

  • Tonight

    Tonight: Showers likely, mainly before 3am. Cloudy, with a low around 36. Breezy, with a light and variable wind becoming north 15 to 20 mph after midnight. Winds could gust as high as 30 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 36 °F

    Showers
    Likely and
    Breezy

  • Friday

    Friday: A 10 percent chance of showers before 7am. Mostly cloudy, then gradually becoming sunny, with a high near 44. Windy, with a north wind 20 to 25 mph decreasing to 10 to 15 mph in the afternoon. Winds could gust as high as 35 mph.

    High: 44 °F

    Slight Chance
    Showers and
    Windy then
    Sunny and
    Breezy

  • Friday Night

    Friday Night: Mostly clear, with a low around 32. Northwest wind 5 to 10 mph becoming west after midnight. Winds could gust as high as 15 mph.

    Low: 32 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 52. Breezy, with a southwest wind around 15 mph, with gusts as high as 30 mph.

    High: 52 °F

    Sunny and
    Breezy

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 39. Breezy, with a southwest wind 15 to 20 mph, with gusts as high as 30 mph.

    Low: 39 °F

    Mostly Clear
    and Breezy

  • Sunday

    Sunday: Mostly sunny, with a high near 58. Breezy, with a southwest wind 15 to 20 mph, with gusts as high as 30 mph.

    High: 58 °F

    Mostly Sunny
    and Breezy

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 39. Northwest wind around 5 mph, with gusts as high as 20 mph.

    Low: 39 °F

    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 57. Calm wind becoming west around 5 mph.

    High: 57 °F

    Sunny

Detailed Forecast

Today
Showers, mainly after noon. High near 47. Southeast wind around 5 mph becoming calm in the morning. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.
Tonight
Showers likely, mainly before 3am. Cloudy, with a low around 36. Breezy, with a light and variable wind becoming north 15 to 20 mph after midnight. Winds could gust as high as 30 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.
Friday
A 10 percent chance of showers before 7am. Mostly cloudy, then gradually becoming sunny, with a high near 44. Windy, with a north wind 20 to 25 mph decreasing to 10 to 15 mph in the afternoon. Winds could gust as high as 35 mph.
Friday Night
Mostly clear, with a low around 32. Northwest wind 5 to 10 mph becoming west after midnight. Winds could gust as high as 15 mph.
Saturday
Sunny, with a high near 52. Breezy, with a southwest wind around 15 mph, with gusts as high as 30 mph.
Saturday Night
Mostly clear, with a low around 39. Breezy, with a southwest wind 15 to 20 mph, with gusts as high as 30 mph.
Sunday
Mostly sunny, with a high near 58. Breezy, with a southwest wind 15 to 20 mph, with gusts as high as 30 mph.
Sunday Night
Partly cloudy, with a low around 39. Northwest wind around 5 mph, with gusts as high as 20 mph.
Monday
Sunny, with a high near 57. Calm wind becoming west around 5 mph.
Monday Night
Mostly clear, with a low around 37. Calm wind.
Tuesday
Sunny, with a high near 54. Calm wind becoming southeast around 5 mph.
Tuesday Night
Partly cloudy, with a low around 39. Calm wind.
Wednesday
A slight chance of showers. Partly sunny, with a high near 56. Calm wind becoming south around 5 mph in the afternoon.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Grand Marais MN
 47.79°N 90.33°W
Last Update:
5:56 am CDT Oct 15, 2026
Forecast Valid:
7am CDT Oct 15, 2026-6pm CDT Oct 21, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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