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

Hazardous Weather Conditions

Current conditions at

Grand Marais/Cook County Airport (KCKC)

Lat: 47.84°NLon: 90.39°WElev: 1784ft.

Overcast

28°F

-2°C

Humidity 74%
Wind Speed Calm
Barometer 29.88 in
Dewpoint 21°F (-6°C)
Visibility 10.00 mi
Last update 9 Mar 10:35 pm CDT
Extended Forecast for

Grand Portage MN

  • Tonight

    Tonight: A 50 percent chance of snow, mainly between 11pm and 4am. Cloudy, with a low around 18. Northeast wind around 5 mph, with gusts as high as 15 mph. Total nighttime snow accumulation of less than a half inch possible.

    Low: 18 °F

    Chance Snow

  • Tuesday

    Tuesday: A 10 percent chance of snow before 7am. Mostly cloudy, with a high near 25. East wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 25 °F

    Slight Chance
    Snow then
    Mostly Cloudy

  • Tuesday Night

    Tuesday Night: A 40 percent chance of snow, mainly after 10pm. Cloudy, with a low around 18. Northeast wind around 5 mph, with gusts as high as 15 mph.

    Low: 18 °F

    Chance Snow

  • Wednesday

    Wednesday: A chance of snow before 1pm, then a chance of flurries after 1pm. Partly sunny, with a high near 32. North wind around 5 mph, with gusts as high as 15 mph. Chance of precipitation is 30%.

    High: 32 °F

    Chance Snow

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 12. Northwest wind around 5 mph becoming calm after midnight. Winds could gust as high as 15 mph.

    Low: 12 °F

    Mostly Clear

  • Thursday

    Thursday: A chance of flurries after 1pm. Mostly sunny, with a high near 29. Calm wind becoming south around 5 mph in the afternoon. Winds could gust as high as 15 mph.

    High: 29 °F

    Chance
    Flurries

  • Thursday Night

    Thursday Night: Snow likely, mainly after 1am. The snow could be heavy at times. Mostly cloudy, with a low around 19. East wind 5 to 10 mph, with gusts as high as 25 mph.

    Low: 19 °F

    Heavy Snow

  • Friday

    Friday: A chance of snow before 1pm. Mostly cloudy, with a high near 31. Northeast wind around 10 mph becoming northwest in the afternoon. Winds could gust as high as 30 mph.

    High: 31 °F

    Chance Snow

  • Friday Night

    Friday Night: Partly cloudy, with a low around 10. Northwest wind around 5 mph, with gusts as high as 25 mph.

    Low: 10 °F

    Partly Cloudy

Detailed Forecast

Tonight
A 50 percent chance of snow, mainly between 11pm and 4am. Cloudy, with a low around 18. Northeast wind around 5 mph, with gusts as high as 15 mph. Total nighttime snow accumulation of less than a half inch possible.
Tuesday
A 10 percent chance of snow before 7am. Mostly cloudy, with a high near 25. East wind 5 to 10 mph, with gusts as high as 20 mph.
Tuesday Night
A 40 percent chance of snow, mainly after 10pm. Cloudy, with a low around 18. Northeast wind around 5 mph, with gusts as high as 15 mph.
Wednesday
A chance of snow before 1pm, then a chance of flurries after 1pm. Partly sunny, with a high near 32. North wind around 5 mph, with gusts as high as 15 mph. Chance of precipitation is 30%.
Wednesday Night
Mostly clear, with a low around 12. Northwest wind around 5 mph becoming calm after midnight. Winds could gust as high as 15 mph.
Thursday
A chance of flurries after 1pm. Mostly sunny, with a high near 29. Calm wind becoming south around 5 mph in the afternoon. Winds could gust as high as 15 mph.
Thursday Night
Snow likely, mainly after 1am. The snow could be heavy at times. Mostly cloudy, with a low around 19. East wind 5 to 10 mph, with gusts as high as 25 mph.
Friday
A chance of snow before 1pm. Mostly cloudy, with a high near 31. Northeast wind around 10 mph becoming northwest in the afternoon. Winds could gust as high as 30 mph.
Friday Night
Partly cloudy, with a low around 10. Northwest wind around 5 mph, with gusts as high as 25 mph.
Saturday
A slight chance of snow after 1pm. Partly sunny, with a high near 28. Northwest wind around 5 mph becoming southeast in the afternoon. Winds could gust as high as 15 mph.
Saturday Night
A chance of snow. Mostly cloudy, with a low around 11. North wind 5 to 10 mph, with gusts as high as 25 mph.
Sunday
A chance of snow. Mostly cloudy, with a high near 23. North wind around 10 mph, with gusts as high as 30 mph.
Sunday Night
Mostly cloudy, with a low around 0. North wind around 10 mph, with gusts as high as 30 mph.
Monday
Mostly sunny, with a high near 19. Northwest wind around 10 mph, with gusts as high as 25 mph.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Grand Portage MN
 47.98°N 89.69°W
Last Update:
9:42 pm CDT Mar 9, 2026
Forecast Valid:
10pm CDT Mar 9, 2026-6pm CDT Mar 16, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation