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 70%
Wind Speed W 12 G 24 mph
Barometer 29.76 in (1007.4 mb)
Dewpoint 54°F (12°C)
Visibility NA
Last update 13 Jul 6:56 pm CDT
Extended Forecast for

Grand Marais MN

  • Tonight

    Tonight: A 30 percent chance of showers and thunderstorms, mainly before 9pm. Areas of smoke after midnight. Partly cloudy, with a low around 60. West wind 5 to 10 mph, with gusts as high as 20 mph.

    Low: 60 °F

    Chance
    Showers then
    Areas Smoke

  • Monday

    Monday: Areas of smoke. Mostly sunny, with a high near 79. Northwest wind 5 to 10 mph becoming southwest in the afternoon. Winds could gust as high as 15 mph.

    High: 79 °F

    Areas Smoke

  • Monday Night

    Monday Night: A 50 percent chance of showers and thunderstorms. Areas of smoke. Mostly cloudy, with a low around 58. Northwest wind around 5 mph becoming east after midnight.

    Low: 58 °F

    Chance
    T-storms

  • Tuesday

    Tuesday: Showers and possibly a thunderstorm. Areas of smoke before 2pm. High near 73. Calm wind becoming southwest around 5 mph in the morning. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.

    High: 73 °F

    Showers

  • Tuesday Night

    Tuesday Night: Showers likely and possibly a thunderstorm before 10pm, then showers likely between 10pm and 1am, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 53. Northeast wind 5 to 10 mph, with gusts as high as 20 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: Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 64. Northeast wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 64 °F

    Showers
    Likely

  • Wednesday Night

    Wednesday Night: A chance of showers. Mostly cloudy, with a low around 52. Northeast wind around 5 mph.

    Low: 52 °F

    Chance
    Showers

  • Thursday

    Thursday: A chance of showers before 1pm. Mostly sunny, with a high near 69. North wind around 5 mph becoming south in the afternoon.

    High: 69 °F

    Chance
    Showers

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 53. Southwest wind around 5 mph becoming calm in the evening.

    Low: 53 °F

    Mostly Clear

Detailed Forecast

Tonight
A 30 percent chance of showers and thunderstorms, mainly before 9pm. Areas of smoke after midnight. Partly cloudy, with a low around 60. West wind 5 to 10 mph, with gusts as high as 20 mph.
Monday
Areas of smoke. Mostly sunny, with a high near 79. Northwest wind 5 to 10 mph becoming southwest in the afternoon. Winds could gust as high as 15 mph.
Monday Night
A 50 percent chance of showers and thunderstorms. Areas of smoke. Mostly cloudy, with a low around 58. Northwest wind around 5 mph becoming east after midnight.
Tuesday
Showers and possibly a thunderstorm. Areas of smoke before 2pm. High near 73. Calm wind becoming southwest around 5 mph in the morning. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.
Tuesday Night
Showers likely and possibly a thunderstorm before 10pm, then showers likely between 10pm and 1am, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 53. Northeast wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
Wednesday
Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 64. Northeast wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Wednesday Night
A chance of showers. Mostly cloudy, with a low around 52. Northeast wind around 5 mph.
Thursday
A chance of showers before 1pm. Mostly sunny, with a high near 69. North wind around 5 mph becoming south in the afternoon.
Thursday Night
Mostly clear, with a low around 53. Southwest wind around 5 mph becoming calm in the evening.
Friday
Mostly sunny, with a high near 72. Calm wind becoming southwest around 5 mph in the afternoon.
Friday Night
A slight chance of showers. Partly cloudy, with a low around 55. Southwest wind around 5 mph becoming calm.
Saturday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 72. Calm wind becoming southwest around 5 mph in the afternoon.
Saturday Night
A slight chance of showers. Partly cloudy, with a low around 55. West wind around 5 mph becoming calm.
Sunday
Mostly sunny, with a high near 73. North wind around 5 mph becoming south in the afternoon.
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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:
6:57 pm CDT Jul 13, 2025
Forecast Valid:
7pm CDT Jul 13, 2025-6pm CDT Jul 20, 2025
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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