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.

43°F

6°C

Humidity 97%
Wind Speed Calm
Barometer 30.02 in (1016.7 mb)
Dewpoint 42°F (6°C)
Visibility NA
Last update 24 Jul 4:56 am CDT
Extended Forecast for

Grand Marais MN

  • Today

    Today: Mostly sunny, with a high near 63. Southwest wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 63 °F

    Mostly Sunny

  • Tonight

    Tonight: Showers and thunderstorms likely, mainly before 3am. Mostly cloudy, with a low around 45. Southwest wind around 10 mph, with gusts as high as 30 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 45 °F

    Chance
    Showers then
    Showers
    Likely

  • Saturday

    Saturday: Mostly sunny, with a high near 67. West wind 5 to 10 mph, with gusts as high as 15 mph.

    High: 67 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 44. West wind around 5 mph becoming calm.

    Low: 44 °F

    Partly Cloudy

  • Sunday

    Sunday: A chance of showers, with thunderstorms also possible after 4pm. Partly sunny, with a high near 65. Calm wind becoming east around 5 mph. Chance of precipitation is 30%.

    High: 65 °F

    Chance
    Showers

  • Sunday Night

    Sunday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 45. East wind around 5 mph becoming calm. Chance of precipitation is 40%.

    Low: 45 °F

    Chance
    Showers

  • Monday

    Monday: A chance of showers and thunderstorms. Partly sunny, with a high near 65. Calm wind becoming east around 5 mph in the morning.

    High: 65 °F

    Chance
    Showers then
    Chance
    T-storms

  • Monday Night

    Monday Night: A chance of showers and thunderstorms before 1am. Mostly cloudy, with a low around 50. East wind around 5 mph becoming calm.

    Low: 50 °F

    Chance
    Showers

  • Tuesday

    Tuesday: A slight chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 65. Calm wind becoming east around 5 mph.

    High: 65 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

Detailed Forecast

Today
Mostly sunny, with a high near 63. Southwest wind 5 to 10 mph, with gusts as high as 20 mph.
Tonight
Showers and thunderstorms likely, mainly before 3am. Mostly cloudy, with a low around 45. Southwest wind around 10 mph, with gusts as high as 30 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Saturday
Mostly sunny, with a high near 67. West wind 5 to 10 mph, with gusts as high as 15 mph.
Saturday Night
Partly cloudy, with a low around 44. West wind around 5 mph becoming calm.
Sunday
A chance of showers, with thunderstorms also possible after 4pm. Partly sunny, with a high near 65. Calm wind becoming east around 5 mph. Chance of precipitation is 30%.
Sunday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 45. East wind around 5 mph becoming calm. Chance of precipitation is 40%.
Monday
A chance of showers and thunderstorms. Partly sunny, with a high near 65. Calm wind becoming east around 5 mph in the morning.
Monday Night
A chance of showers and thunderstorms before 1am. Mostly cloudy, with a low around 50. East wind around 5 mph becoming calm.
Tuesday
A slight chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 65. Calm wind becoming east around 5 mph.
Tuesday Night
Partly cloudy, with a low around 49. Calm wind.
Wednesday
Mostly sunny, with a high near 66. Calm wind becoming south around 5 mph.
Wednesday Night
A slight chance of showers. Mostly cloudy, with a low around 50. Calm wind.
Thursday
A chance of showers. Mostly sunny, with a high near 70. Calm wind becoming southwest 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:
2:36 am CDT Jul 24, 2026
Forecast Valid:
5am CDT Jul 24, 2026-6pm CDT Jul 30, 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