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 43%
Wind Speed N 8 mph
Barometer 30.09 in (1019.1 mb)
Dewpoint 38°F (3°C)
Visibility NA
Last update 4 Oct 12:56 pm CDT
Extended Forecast for

Grand Marais MN

Frost Advisory October 5, 01:00am until October 5, 09:00am
Click here for hazard details and duration
Frost Advisory

  • This Afternoon

    This Afternoon: Sunny, with a high near 55. Breezy, with a northwest wind 15 to 20 mph, with gusts as high as 30 mph.

    High: 55 °F

    Sunny and
    Breezy

  • Tonight

    Tonight: Mostly clear, with a low around 41. Northwest wind 5 to 10 mph, with gusts as high as 20 mph.

    Low: 41 °F

    Mostly Clear

  • Monday

    Monday: Increasing clouds, with a high near 51. Northwest wind 5 to 10 mph becoming south in the afternoon.

    High: 51 °F

    Increasing
    Clouds

  • Monday Night

    Monday Night: A slight chance of showers between 10pm and 2am. Mostly cloudy, with a low around 45. Southeast wind 5 to 10 mph. Chance of precipitation is 20%.

    Low: 45 °F

    Slight Chance
    Showers

  • Tuesday

    Tuesday: Partly sunny, with a high near 62. Breezy, with a south wind 10 to 15 mph becoming west in the afternoon. Winds could gust as high as 20 mph.

    High: 62 °F

    Partly Sunny
    and Breezy

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 50. West wind around 10 mph, with gusts as high as 25 mph.

    Low: 50 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 57. Breezy, with a west wind 10 to 15 mph, with gusts as high as 30 mph.

    High: 57 °F

    Sunny and
    Breezy

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 45. West wind 5 to 10 mph, with gusts as high as 20 mph.

    Low: 45 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 56. West wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 56 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Sunny, with a high near 55. Breezy, with a northwest wind 15 to 20 mph, with gusts as high as 30 mph.
Tonight
Mostly clear, with a low around 41. Northwest wind 5 to 10 mph, with gusts as high as 20 mph.
Monday
Increasing clouds, with a high near 51. Northwest wind 5 to 10 mph becoming south in the afternoon.
Monday Night
A slight chance of showers between 10pm and 2am. Mostly cloudy, with a low around 45. Southeast wind 5 to 10 mph. Chance of precipitation is 20%.
Tuesday
Partly sunny, with a high near 62. Breezy, with a south wind 10 to 15 mph becoming west in the afternoon. Winds could gust as high as 20 mph.
Tuesday Night
Mostly clear, with a low around 50. West wind around 10 mph, with gusts as high as 25 mph.
Wednesday
Sunny, with a high near 57. Breezy, with a west wind 10 to 15 mph, with gusts as high as 30 mph.
Wednesday Night
Mostly clear, with a low around 45. West wind 5 to 10 mph, with gusts as high as 20 mph.
Thursday
Mostly sunny, with a high near 56. West wind 5 to 10 mph, with gusts as high as 20 mph.
Thursday Night
Partly cloudy, with a low around 43. West wind around 5 mph.
Friday
Mostly sunny, with a high near 54. West wind around 5 mph.
Friday Night
Mostly cloudy, with a low around 44. North wind 5 to 10 mph becoming east after midnight.
Saturday
A slight chance of showers. Partly sunny, with a high near 57. Breezy, with a southeast wind around 15 mph, with gusts as high as 20 mph.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Grand Marais MN
 47.74°N 90.33°W
Last Update:
1:01 pm CDT Oct 4, 2026
Forecast Valid:
1pm CDT Oct 4, 2026-6pm CDT Oct 10, 2026
 
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Additional Resources

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High Temperature

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Chance of Precipitation