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.

62°F

17°C

Humidity 80%
Wind Speed E 5 mph
Barometer 29.92 in (1013.0 mb)
Dewpoint 56°F (13°C)
Visibility NA
Last update 15 Jul 2:56 am CDT
Extended Forecast for

Grand Marais MN

  • Overnight

    Overnight: A 30 percent chance of showers and thunderstorms. Areas of smoke. Mostly cloudy, with a low around 58. Northeast wind around 5 mph.

    Low: 58 °F

    Chance
    T-storms

  • Tuesday

    Tuesday: Showers and possibly a thunderstorm. Areas of smoke between 9am and 2pm. High near 71. East wind around 5 mph becoming west in the afternoon. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.

    High: 71 °F

    Showers then
    T-storms

  • Tuesday Night

    Tuesday Night: Showers and possibly a thunderstorm before 10pm, then showers likely. Low around 51. Northeast wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 51 °F

    Showers then
    Chance
    Showers

  • Wednesday

    Wednesday: A 40 percent chance of showers, mainly before 1pm. Mostly cloudy, with a high near 65. East wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 65 °F

    Chance
    Showers

  • Wednesday Night

    Wednesday Night: A 40 percent chance of showers, mainly before 1am. Mostly cloudy, with a low around 50. East wind around 5 mph becoming calm.

    Low: 50 °F

    Chance
    Showers

  • Thursday

    Thursday: Sunny, with a high near 71. North wind around 5 mph becoming south in the afternoon.

    High: 71 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 54. Southwest wind around 5 mph becoming calm.

    Low: 54 °F

    Mostly Clear

  • Friday

    Friday: A slight chance of showers after 1pm. Mostly sunny, with a high near 71. Calm wind becoming south around 5 mph.

    High: 71 °F

    Mostly Sunny
    then Slight
    Chance
    Showers

  • Friday Night

    Friday Night: A chance of showers, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 54. Southeast wind around 5 mph becoming calm.

    Low: 54 °F

    Showers
    Likely

Detailed Forecast

Overnight
A 30 percent chance of showers and thunderstorms. Areas of smoke. Mostly cloudy, with a low around 58. Northeast wind around 5 mph.
Tuesday
Showers and possibly a thunderstorm. Areas of smoke between 9am and 2pm. High near 71. East wind around 5 mph becoming west in the afternoon. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.
Tuesday Night
Showers and possibly a thunderstorm before 10pm, then showers likely. Low around 51. Northeast wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Wednesday
A 40 percent chance of showers, mainly before 1pm. Mostly cloudy, with a high near 65. East wind 5 to 10 mph, with gusts as high as 20 mph.
Wednesday Night
A 40 percent chance of showers, mainly before 1am. Mostly cloudy, with a low around 50. East wind around 5 mph becoming calm.
Thursday
Sunny, with a high near 71. North wind around 5 mph becoming south in the afternoon.
Thursday Night
Mostly clear, with a low around 54. Southwest wind around 5 mph becoming calm.
Friday
A slight chance of showers after 1pm. Mostly sunny, with a high near 71. Calm wind becoming south around 5 mph.
Friday Night
A chance of showers, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 54. Southeast wind around 5 mph becoming calm.
Saturday
A chance of showers and thunderstorms, mainly before 1pm. Partly sunny, with a high near 69. East wind around 5 mph.
Saturday Night
Partly cloudy, with a low around 55. Northeast wind around 5 mph becoming calm.
Sunday
Mostly sunny, with a high near 72. Calm wind becoming southeast around 5 mph in the afternoon.
Sunday Night
Partly cloudy, with a low around 55. Southeast wind around 5 mph becoming calm.
Monday
A slight chance of showers. Mostly sunny, with a high near 72. East wind around 5 mph.
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ABOUT THIS FORECAST

 
Point Forecast:
Grand Marais MN
 47.76°N 90.33°W
Last Update:
2:26 am CDT Jul 15, 2025
Forecast Valid:
3am CDT Jul 15, 2025-6pm CDT Jul 21, 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