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.

63°F

17°C

Humidity 81%
Wind Speed N 5 mph
Barometer 29.96 in (1014.1 mb)
Dewpoint 57°F (14°C)
Visibility NA
Last update 16 Aug 9:56 pm CDT
Extended Forecast for

Grand Marais MN

  • Tonight

    Tonight: Mostly clear, with a low around 52. Northwest wind around 5 mph.

    Low: 52 °F

    Mostly Clear

  • Monday

    Monday: Mostly sunny, with a high near 63. Northwest wind 5 to 10 mph becoming southwest in the morning. Winds could gust as high as 20 mph.

    High: 63 °F

    Mostly Sunny

  • Monday Night

    Monday Night: A chance of showers and thunderstorms before 1am, then a slight chance of showers. Mostly cloudy, with a low around 51. West wind 5 to 10 mph, with gusts as high as 15 mph. Chance of precipitation is 40%.

    Low: 51 °F

    Chance
    Showers then
    Slight Chance
    T-storms

  • Tuesday

    Tuesday: Mostly sunny, with a high near 61. Northwest wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 61 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 45. Northwest wind 5 to 10 mph, with gusts as high as 15 mph.

    Low: 45 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 63. Northwest wind 5 to 10 mph becoming southwest in the afternoon. Winds could gust as high as 15 mph.

    High: 63 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 49. West wind around 5 mph becoming calm in the evening.

    Low: 49 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 66. Calm wind becoming south around 5 mph in the afternoon.

    High: 66 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: A slight chance of showers, then a chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 54. Calm wind becoming west around 5 mph.

    Low: 54 °F

    Chance
    Showers

Detailed Forecast

Tonight
Mostly clear, with a low around 52. Northwest wind around 5 mph.
Monday
Mostly sunny, with a high near 63. Northwest wind 5 to 10 mph becoming southwest in the morning. Winds could gust as high as 20 mph.
Monday Night
A chance of showers and thunderstorms before 1am, then a slight chance of showers. Mostly cloudy, with a low around 51. West wind 5 to 10 mph, with gusts as high as 15 mph. Chance of precipitation is 40%.
Tuesday
Mostly sunny, with a high near 61. Northwest wind 5 to 10 mph, with gusts as high as 20 mph.
Tuesday Night
Partly cloudy, with a low around 45. Northwest wind 5 to 10 mph, with gusts as high as 15 mph.
Wednesday
Mostly sunny, with a high near 63. 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 49. West wind around 5 mph becoming calm in the evening.
Thursday
Mostly sunny, with a high near 66. Calm wind becoming south around 5 mph in the afternoon.
Thursday Night
A slight chance of showers, then a chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 54. Calm wind becoming west around 5 mph.
Friday
A chance of showers, with thunderstorms also possible after 1pm. Partly sunny, with a high near 69. Southwest wind 5 to 10 mph, with gusts as high as 20 mph.
Friday Night
A slight chance of showers. Mostly cloudy, with a low around 54. Northwest wind around 5 mph, with gusts as high as 15 mph.
Saturday
A slight chance of showers. Mostly sunny, with a high near 68. Northwest wind around 5 mph becoming southwest in the afternoon.
Saturday Night
Partly cloudy, with a low around 51. North wind around 5 mph.
Sunday
Mostly sunny, with a high near 66. North wind around 5 mph becoming south in the afternoon.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Grand Marais MN
 47.74°N 90.33°W
Last Update:
9:12 pm CDT Aug 16, 2026
Forecast Valid:
10pm CDT Aug 16, 2026-6pm CDT Aug 23, 2026
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation