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.

64°F

18°C

Humidity 81%
Wind Speed W 9 G 18 mph
Barometer 29.84 in (1010.1 mb)
Dewpoint 58°F (14°C)
Visibility NA
Last update 13 Jul 9:56 am CDT
Extended Forecast for

Grand Marais MN

  • Today

    Today: A 10 percent chance of showers and thunderstorms after 5pm. Areas of smoke. Mostly sunny, with a high near 75. Breezy, with a southwest wind 10 to 15 mph, with gusts as high as 25 mph.

    High: 75 °F

    Areas Smoke
    then Slight
    Chance
    T-storms and
    Breezy

  • Tonight

    Tonight: A chance of showers and thunderstorms before 9pm, then a slight chance of showers between 9pm and 10pm. Areas of smoke after 11pm. Partly cloudy, with a low around 58. West wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 30%.

    Low: 58 °F

    Chance
    Showers then
    Areas Smoke

  • Monday

    Monday: Areas of smoke. Mostly sunny, with a high near 77. Northwest wind 5 to 10 mph becoming southwest in the afternoon.

    High: 77 °F

    Areas Smoke

  • Monday Night

    Monday Night: A 50 percent chance of showers and thunderstorms, mainly after 1am. Mostly cloudy, with a low around 57. Southwest wind around 5 mph becoming calm.

    Low: 57 °F

    Slight Chance
    T-storms then
    Chance
    T-storms

  • Tuesday

    Tuesday: A chance of showers before 10am, then a chance of showers and thunderstorms between 10am and 1pm, then showers likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 73. East wind around 5 mph becoming west in the afternoon. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.

    High: 73 °F

    Showers
    Likely

  • Tuesday Night

    Tuesday Night: Showers likely and possibly a thunderstorm. Cloudy, with a low around 53. North wind around 5 mph, with gusts as high as 15 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 53 °F

    Showers
    Likely

  • Wednesday

    Wednesday: A chance of showers and thunderstorms. Mostly cloudy, with a high near 66. Northeast wind around 10 mph, with gusts as high as 20 mph.

    High: 66 °F

    Chance
    Showers

  • Wednesday Night

    Wednesday Night: A chance of showers. Mostly cloudy, with a low around 51. North wind around 5 mph.

    Low: 51 °F

    Chance
    Showers

  • Thursday

    Thursday: A slight chance of showers before 1pm. Mostly sunny, with a high near 70. North wind around 5 mph becoming south in the afternoon.

    High: 70 °F

    Slight Chance
    Showers

Detailed Forecast

Today
A 10 percent chance of showers and thunderstorms after 5pm. Areas of smoke. Mostly sunny, with a high near 75. Breezy, with a southwest wind 10 to 15 mph, with gusts as high as 25 mph.
Tonight
A chance of showers and thunderstorms before 9pm, then a slight chance of showers between 9pm and 10pm. Areas of smoke after 11pm. Partly cloudy, with a low around 58. West wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 30%.
Monday
Areas of smoke. Mostly sunny, with a high near 77. Northwest wind 5 to 10 mph becoming southwest in the afternoon.
Monday Night
A 50 percent chance of showers and thunderstorms, mainly after 1am. Mostly cloudy, with a low around 57. Southwest wind around 5 mph becoming calm.
Tuesday
A chance of showers before 10am, then a chance of showers and thunderstorms between 10am and 1pm, then showers likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 73. East wind around 5 mph becoming west in the afternoon. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
Tuesday Night
Showers likely and possibly a thunderstorm. Cloudy, with a low around 53. North wind around 5 mph, with gusts as high as 15 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
Wednesday
A chance of showers and thunderstorms. Mostly cloudy, with a high near 66. Northeast wind around 10 mph, with gusts as high as 20 mph.
Wednesday Night
A chance of showers. Mostly cloudy, with a low around 51. North wind around 5 mph.
Thursday
A slight chance of showers before 1pm. Mostly sunny, with a high near 70. North wind around 5 mph becoming south in the afternoon.
Thursday Night
Partly cloudy, with a low around 54. Southwest wind around 5 mph becoming calm in the evening.
Friday
Mostly sunny, with a high near 71. Northwest wind around 5 mph becoming southwest in the afternoon.
Friday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 54. Southwest wind around 5 mph becoming northwest after midnight.
Saturday
A slight chance of showers and thunderstorms. Partly sunny, with a high near 70. Northeast wind around 5 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Grand Marais MN
 47.76°N 90.33°W
Last Update:
9:11 am CDT Jul 13, 2025
Forecast Valid:
10am CDT Jul 13, 2025-6pm CDT Jul 19, 2025
 
Forecast Discussion
 
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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