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.

46°F

8°C

Humidity 83%
Wind Speed E 15 G 28 mph
Barometer 29.87 in (1011.7 mb)
Dewpoint 41°F (5°C)
Visibility NA
Wind Chill40°F (4°C)
Last update 12 Oct 3:56 pm CDT
Extended Forecast for

Grand Marais MN

  • Columbus Day

    Columbus Day: A 30 percent chance of showers, mainly after 5pm. Cloudy, with a steady temperature around 45. Breezy, with a northeast wind around 20 mph, with gusts as high as 35 mph.

    High: 45 °F

    Chance
    Showers and
    Breezy

  • Tonight

    Tonight: Showers and possibly a thunderstorm before 2am, then a chance of showers. Low around 44. Breezy, with a northeast wind 15 to 20 mph, with gusts as high as 35 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 44 °F

    Showers and
    Breezy

  • Tuesday

    Tuesday: A 20 percent chance of showers before 9am. Mostly cloudy, with a high near 50. North wind 5 to 10 mph becoming west in the afternoon.

    High: 50 °F

    Slight Chance
    Showers then
    Mostly Cloudy

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 42. Northwest wind around 5 mph.

    Low: 42 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 51. Northwest wind around 5 mph.

    High: 51 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 40. Calm wind becoming east around 5 mph.

    Low: 40 °F

    Partly Cloudy

  • Thursday

    Thursday: A slight chance of showers after 1pm. Mostly cloudy, with a high near 50. South wind 5 to 10 mph, with gusts as high as 15 mph.

    High: 50 °F

    Mostly Cloudy
    then Slight
    Chance
    Showers

  • Thursday Night

    Thursday Night: A slight chance of showers. Mostly cloudy, with a low around 39. Windy, with a west wind 10 to 15 mph becoming northwest 20 to 25 mph after midnight. Winds could gust as high as 35 mph.

    Low: 39 °F

    Slight Chance
    Showers and
    Windy

  • Friday

    Friday: Mostly sunny, with a high near 47. Windy, with a northwest wind 15 to 25 mph, with gusts as high as 40 mph.

    High: 47 °F

    Mostly Sunny
    and Windy

Detailed Forecast

Columbus Day
A 30 percent chance of showers, mainly after 5pm. Cloudy, with a steady temperature around 45. Breezy, with a northeast wind around 20 mph, with gusts as high as 35 mph.
Tonight
Showers and possibly a thunderstorm before 2am, then a chance of showers. Low around 44. Breezy, with a northeast wind 15 to 20 mph, with gusts as high as 35 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tuesday
A 20 percent chance of showers before 9am. Mostly cloudy, with a high near 50. North wind 5 to 10 mph becoming west in the afternoon.
Tuesday Night
Mostly cloudy, with a low around 42. Northwest wind around 5 mph.
Wednesday
Partly sunny, with a high near 51. Northwest wind around 5 mph.
Wednesday Night
Partly cloudy, with a low around 40. Calm wind becoming east around 5 mph.
Thursday
A slight chance of showers after 1pm. Mostly cloudy, with a high near 50. South wind 5 to 10 mph, with gusts as high as 15 mph.
Thursday Night
A slight chance of showers. Mostly cloudy, with a low around 39. Windy, with a west wind 10 to 15 mph becoming northwest 20 to 25 mph after midnight. Winds could gust as high as 35 mph.
Friday
Mostly sunny, with a high near 47. Windy, with a northwest wind 15 to 25 mph, with gusts as high as 40 mph.
Friday Night
Mostly clear, with a low around 34. Northwest wind 5 to 10 mph, with gusts as high as 25 mph.
Saturday
Sunny, with a high near 50. Breezy, with a southwest wind 5 to 10 mph increasing to 10 to 15 mph in the afternoon. Winds could gust as high as 25 mph.
Saturday Night
Partly cloudy, with a low around 41. Breezy, with a southwest wind 15 to 20 mph, with gusts as high as 25 mph.
Sunday
Mostly sunny, with a high near 56. Breezy, with a southwest wind 15 to 20 mph, with gusts as high as 30 mph.
Sunday Night
Partly cloudy, with a low around 43. West wind 5 to 10 mph, with gusts as high as 20 mph.
Monday
Mostly sunny, with a high near 56. Northwest wind around 5 mph.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Grand Marais MN
 47.74°N 90.33°W
Last Update:
3:26 pm CDT Oct 12, 2026
Forecast Valid:
4pm CDT Oct 12, 2026-6pm CDT Oct 19, 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