National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Grand Marais/Cook County Airport (KCKC)

Lat: 47.84°NLon: 90.39°WElev: 1784ft.

Overcast

43°F

6°C

Humidity 93%
Wind Speed SE 5 mph
Barometer 30.00 in
Dewpoint 41°F (5°C)
Visibility 10.00 mi
Wind Chill40°F (4°C)
Last update 6 Oct 1:35 am CDT
Extended Forecast for

Grand Portage MN

  • Overnight

    Overnight: A 20 percent chance of showers after 4am. Mostly cloudy, with a low around 37. South wind around 5 mph, with gusts as high as 15 mph.

    Low: 37 °F

    Slight Chance
    Showers

  • Tuesday

    Tuesday: A slight chance of showers between 10am and noon. Mostly cloudy, with a high near 64. South wind around 10 mph becoming southwest in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 20%.

    High: 64 °F

    Slight Chance
    Showers then
    Partly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 46. West wind 5 to 10 mph, with gusts as high as 20 mph.

    Low: 46 °F

    Mostly Clear

  • Wednesday

    Wednesday: A slight chance of showers before 9am, then a slight chance of showers after 4pm. Sunny, with a high near 63. West wind 5 to 10 mph, with gusts as high as 25 mph. Chance of precipitation is 20%.

    High: 63 °F

    Slight Chance
    Showers

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 41. Northwest wind around 10 mph, with gusts as high as 25 mph.

    Low: 41 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 57. West wind around 10 mph, with gusts as high as 20 mph.

    High: 57 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 41. West wind around 5 mph.

    Low: 41 °F

    Partly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 56. West wind around 5 mph becoming southwest in the afternoon.

    High: 56 °F

    Partly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 44. Southeast wind around 5 mph, with gusts as high as 15 mph.

    Low: 44 °F

    Mostly Cloudy

Detailed Forecast

Overnight
A 20 percent chance of showers after 4am. Mostly cloudy, with a low around 37. South wind around 5 mph, with gusts as high as 15 mph.
Tuesday
A slight chance of showers between 10am and noon. Mostly cloudy, with a high near 64. South wind around 10 mph becoming southwest in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 20%.
Tuesday Night
Mostly clear, with a low around 46. West wind 5 to 10 mph, with gusts as high as 20 mph.
Wednesday
A slight chance of showers before 9am, then a slight chance of showers after 4pm. Sunny, with a high near 63. West wind 5 to 10 mph, with gusts as high as 25 mph. Chance of precipitation is 20%.
Wednesday Night
Partly cloudy, with a low around 41. Northwest wind around 10 mph, with gusts as high as 25 mph.
Thursday
Mostly sunny, with a high near 57. West wind around 10 mph, with gusts as high as 20 mph.
Thursday Night
Partly cloudy, with a low around 41. West wind around 5 mph.
Friday
Partly sunny, with a high near 56. West wind around 5 mph becoming southwest in the afternoon.
Friday Night
Mostly cloudy, with a low around 44. Southeast wind around 5 mph, with gusts as high as 15 mph.
Saturday
Partly sunny, with a high near 62. Breezy, with a southeast wind 10 to 15 mph, with gusts as high as 25 mph.
Saturday Night
Mostly cloudy, with a low around 51. Breezy, with a southwest wind 10 to 15 mph, with gusts as high as 25 mph.
Sunday
Partly sunny, with a high near 62. Breezy, with a west wind 10 to 15 mph becoming north in the afternoon. Winds could gust as high as 25 mph.
Sunday Night
A chance of showers. Mostly cloudy, with a low around 42. North wind around 10 mph, with gusts as high as 20 mph.
Columbus Day
A chance of showers. Partly sunny, with a high near 52. Northeast wind around 10 mph, with gusts as high as 20 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Grand Portage MN
 47.96°N 89.69°W
Last Update:
1:21 am CDT Oct 6, 2026
Forecast Valid:
1am CDT Oct 6, 2026-6pm CDT Oct 12, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation