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.

49°F

9°C

Humidity 77%
Wind Speed N 5 mph
Barometer 30.16 in (1021.5 mb)
Dewpoint 42°F (6°C)
Visibility NA
Wind Chill47°F (8°C)
Last update 13 Sep 11:56 pm CDT
Extended Forecast for

Grand Marais MN

  • Overnight

    Overnight: Mostly clear, with a low around 48. North wind around 5 mph becoming calm.

    Low: 48 °F

    Mostly Clear

  • Monday

    Monday: A 30 percent chance of showers after 4pm. Increasing clouds, with a high near 55. Light and variable wind becoming east 5 to 10 mph in the morning. Winds could gust as high as 20 mph.

    High: 55 °F

    Sunny then
    Chance
    Showers

  • Monday Night

    Monday Night: Showers, mainly before 2am. Temperature rising to around 57 by 3am. Breezy, with a southeast wind around 15 mph becoming southwest after midnight. Winds could gust as high as 30 mph. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.

    Low: 53 °F⇑

    Breezy.
    Showers then
    Showers
    Likely

  • Tuesday

    Tuesday: Mostly sunny, with a high near 58. Windy, with a southwest wind 20 to 25 mph, with gusts as high as 40 mph.

    High: 58 °F

    Mostly Sunny
    and Windy

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 47. West wind 5 to 10 mph, with gusts as high as 20 mph.

    Low: 47 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 56. Calm wind becoming south around 5 mph in the afternoon.

    High: 56 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: A slight chance of showers before 1am. Mostly cloudy, with a low around 50. South wind around 5 mph becoming calm in the evening.

    Low: 50 °F

    Slight Chance
    Showers

  • Thursday

    Thursday: Mostly sunny, with a high near 63. Southwest wind around 5 mph.

    High: 63 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 50. West wind around 5 mph becoming calm.

    Low: 50 °F

    Partly Cloudy

Detailed Forecast

Overnight
Mostly clear, with a low around 48. North wind around 5 mph becoming calm.
Monday
A 30 percent chance of showers after 4pm. Increasing clouds, with a high near 55. Light and variable wind becoming east 5 to 10 mph in the morning. Winds could gust as high as 20 mph.
Monday Night
Showers, mainly before 2am. Temperature rising to around 57 by 3am. Breezy, with a southeast wind around 15 mph becoming southwest after midnight. Winds could gust as high as 30 mph. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.
Tuesday
Mostly sunny, with a high near 58. Windy, with a southwest wind 20 to 25 mph, with gusts as high as 40 mph.
Tuesday Night
Mostly clear, with a low around 47. West wind 5 to 10 mph, with gusts as high as 20 mph.
Wednesday
Mostly sunny, with a high near 56. Calm wind becoming south around 5 mph in the afternoon.
Wednesday Night
A slight chance of showers before 1am. Mostly cloudy, with a low around 50. South wind around 5 mph becoming calm in the evening.
Thursday
Mostly sunny, with a high near 63. Southwest wind around 5 mph.
Thursday Night
Partly cloudy, with a low around 50. West wind around 5 mph becoming calm.
Friday
A slight chance of showers. Partly sunny, with a high near 63. Northeast wind 5 to 10 mph becoming south in the afternoon.
Friday Night
A chance of showers. Mostly cloudy, with a low around 52. Northeast wind around 5 mph.
Saturday
A slight chance of showers. Partly sunny, with a high near 63. Northeast wind 5 to 10 mph, with gusts as high as 15 mph.
Saturday Night
Mostly cloudy, with a low around 50. Northeast wind 5 to 10 mph.
Sunday
Mostly sunny, with a high near 61. Breezy, with an east wind 10 to 15 mph, with gusts as high as 20 mph.
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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:
12:16 am CDT Sep 14, 2026
Forecast Valid:
12am CDT Sep 14, 2026-6pm CDT Sep 20, 2026
 
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Additional Resources

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High Temperature

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Chance of Precipitation