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.

61°F

16°C

Humidity 84%
Wind Speed W 6 mph
Barometer 29.96 in (1014.3 mb)
Dewpoint 56°F (13°C)
Visibility NA
Last update 17 Aug 12:56 pm CDT
Extended Forecast for

Grand Marais MN

  • This Afternoon

    This Afternoon: Partly sunny, with a high near 67. Breezy, with a southwest wind 10 to 15 mph, with gusts as high as 20 mph.

    High: 67 °F

    Partly Sunny
    and Breezy

  • Tonight

    Tonight: A chance of showers and thunderstorms before midnight, then a slight chance of showers between midnight and 1am. Mostly cloudy, with a low around 49. West wind 5 to 10 mph, with gusts as high as 15 mph. Chance of precipitation is 50%.

    Low: 49 °F

    Chance
    Showers then
    Slight Chance
    Showers

  • Tuesday

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

    High: 63 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 41. West wind around 5 mph, with gusts as high as 15 mph.

    Low: 41 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 62. Northwest wind 5 to 10 mph becoming southwest in the afternoon. Winds could gust as high as 15 mph.

    High: 62 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 40. West wind around 5 mph becoming calm in the evening.

    Low: 40 °F

    Partly Cloudy

  • Thursday

    Thursday: A slight chance of showers after 1pm. Partly sunny, with a high near 63. Calm wind becoming south around 5 mph.

    High: 63 °F

    Mostly Sunny
    then Slight
    Chance
    Showers

  • Thursday Night

    Thursday Night: A chance of showers, with thunderstorms also possible after 1am. Mostly cloudy, with a low around 53. Southeast wind around 5 mph becoming calm.

    Low: 53 °F

    Chance
    Showers

  • Friday

    Friday: A chance of showers, mainly after 1pm. Partly sunny, with a high near 68. North wind around 5 mph becoming southwest in the afternoon. Winds could gust as high as 15 mph.

    High: 68 °F

    Chance
    Showers

Detailed Forecast

This Afternoon
Partly sunny, with a high near 67. Breezy, with a southwest wind 10 to 15 mph, with gusts as high as 20 mph.
Tonight
A chance of showers and thunderstorms before midnight, then a slight chance of showers between midnight and 1am. Mostly cloudy, with a low around 49. West wind 5 to 10 mph, with gusts as high as 15 mph. Chance of precipitation is 50%.
Tuesday
Mostly sunny, with a high near 63. West wind 5 to 10 mph, with gusts as high as 20 mph.
Tuesday Night
Mostly clear, with a low around 41. West wind around 5 mph, with gusts as high as 15 mph.
Wednesday
Mostly sunny, with a high near 62. Northwest wind 5 to 10 mph becoming southwest in the afternoon. Winds could gust as high as 15 mph.
Wednesday Night
Partly cloudy, with a low around 40. West wind around 5 mph becoming calm in the evening.
Thursday
A slight chance of showers after 1pm. Partly sunny, with a high near 63. Calm wind becoming south around 5 mph.
Thursday Night
A chance of showers, with thunderstorms also possible after 1am. Mostly cloudy, with a low around 53. Southeast wind around 5 mph becoming calm.
Friday
A chance of showers, mainly after 1pm. Partly sunny, with a high near 68. North wind around 5 mph becoming southwest in the afternoon. Winds could gust as high as 15 mph.
Friday Night
A slight chance of showers before 1am. Mostly cloudy, with a low around 53. North wind around 5 mph.
Saturday
A slight chance of showers. Mostly sunny, with a high near 66. Northwest wind 5 to 10 mph, with gusts as high as 15 mph.
Saturday Night
Partly cloudy, with a low around 49. North wind around 5 mph.
Sunday
Mostly sunny, with a high near 64. North wind around 5 mph becoming southeast in the afternoon.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Grand Marais MN
 47.74°N 90.33°W
Last Update:
1:21 pm CDT Aug 17, 2026
Forecast Valid:
1pm CDT Aug 17, 2026-6pm CDT Aug 23, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation