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.

44°F

7°C

Humidity 53%
Wind Speed W 9 mph
Barometer 29.89 in (1013.1 mb)
Dewpoint 28°F (-2°C)
Visibility NA
Wind Chill39°F (4°C)
Last update 21 Apr 3:56 pm CDT
Extended Forecast for

Grand Marais MN

  • Tonight

    Tonight: Mostly clear, with a low around 35. Calm wind.

    Low: 35 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 51. Calm wind becoming east around 5 mph in the afternoon.

    High: 51 °F

    Sunny

  • Wednesday Night

    Wednesday Night: A slight chance of rain before 1am, then a chance of rain and thunderstorms between 1am and 4am, then a chance of rain after 4am. Mostly cloudy, with a low around 40. Breezy, with an east wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 40%.

    Low: 40 °F

    Chance Rain
    and Breezy

  • Thursday

    Thursday: A 20 percent chance of rain after 1pm. Partly sunny, with a high near 49. Breezy, with an east wind 10 to 15 mph, with gusts as high as 25 mph.

    High: 49 °F

    Breezy.
    Partly Sunny
    then Slight
    Chance Rain

  • Thursday Night

    Thursday Night: Rain and possibly a thunderstorm. Low around 41. Breezy, with an east wind 10 to 15 mph, with gusts as high as 30 mph. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.

    Low: 41 °F

    Rain and
    Breezy

  • Friday

    Friday: Rain likely and possibly a thunderstorm. Mostly cloudy, with a high near 48. Northeast wind around 10 mph, with gusts as high as 25 mph. Chance of precipitation is 70%. New precipitation amounts between a quarter and half of an inch possible.

    High: 48 °F

    Rain Likely

  • Friday Night

    Friday Night: A chance of rain, mainly before 1am. Mostly cloudy, with a low around 36. North wind 5 to 10 mph, with gusts as high as 20 mph.

    Low: 36 °F

    Chance Rain

  • Saturday

    Saturday: A slight chance of rain before 1pm. Mostly sunny, with a high near 49. North wind 5 to 10 mph becoming south in the afternoon. Winds could gust as high as 15 mph.

    High: 49 °F

    Slight Chance
    Rain

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 34. East wind around 5 mph becoming calm.

    Low: 34 °F

    Partly Cloudy

Detailed Forecast

Tonight
Mostly clear, with a low around 35. Calm wind.
Wednesday
Sunny, with a high near 51. Calm wind becoming east around 5 mph in the afternoon.
Wednesday Night
A slight chance of rain before 1am, then a chance of rain and thunderstorms between 1am and 4am, then a chance of rain after 4am. Mostly cloudy, with a low around 40. Breezy, with an east wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 40%.
Thursday
A 20 percent chance of rain after 1pm. Partly sunny, with a high near 49. Breezy, with an east wind 10 to 15 mph, with gusts as high as 25 mph.
Thursday Night
Rain and possibly a thunderstorm. Low around 41. Breezy, with an east wind 10 to 15 mph, with gusts as high as 30 mph. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.
Friday
Rain likely and possibly a thunderstorm. Mostly cloudy, with a high near 48. Northeast wind around 10 mph, with gusts as high as 25 mph. Chance of precipitation is 70%. New precipitation amounts between a quarter and half of an inch possible.
Friday Night
A chance of rain, mainly before 1am. Mostly cloudy, with a low around 36. North wind 5 to 10 mph, with gusts as high as 20 mph.
Saturday
A slight chance of rain before 1pm. Mostly sunny, with a high near 49. North wind 5 to 10 mph becoming south in the afternoon. Winds could gust as high as 15 mph.
Saturday Night
Partly cloudy, with a low around 34. East wind around 5 mph becoming calm.
Sunday
Mostly sunny, with a high near 48. Calm wind becoming southeast around 5 mph in the afternoon.
Sunday Night
A slight chance of rain. Mostly cloudy, with a low around 36. Northeast wind around 5 mph, with gusts as high as 15 mph.
Monday
A chance of rain. Partly sunny, with a high near 47. East wind around 10 mph, with gusts as high as 20 mph.
Monday Night
A chance of rain. Mostly cloudy, with a low around 37. Northeast wind around 10 mph, with gusts as high as 25 mph.
Tuesday
A slight chance of rain. Partly sunny, with a high near 48. Northeast wind around 10 mph becoming northwest in the afternoon. Winds could gust as high as 25 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 90.36°W
Last Update:
1:21 pm CDT Apr 21, 2026
Forecast Valid:
3pm CDT Apr 21, 2026-6pm CDT Apr 28, 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