Prolonged Atmospheric River Will Impact the Northwest Early this Week

A weather system in the Pacific Northwest will produce rain throughout the day, before a potent atmospheric river produces a prolonged round of heavy rainfall, widespread urban and river flooding, and high elevation snow to the region Monday through Wednesday. Showers and thunderstorms may produce isolated damaging winds, a brief tornado, and locally heavy rainfall across parts of Florida today. Read More >

Current conditions at

Grand Marais/Cook County Airport (KCKC)

Lat: 47.84°NLon: 90.39°WElev: 1784ft.

Fair

-2°F

-19°C

Humidity 84%
Wind Speed NW 3 mph
Barometer 30.21 in
Dewpoint -6°F (-21°C)
Visibility 10.00 mi
Last update 7 Dec 5:35 pm CST
Extended Forecast for

Grand Marais/Cook County Airport MN

Winter Weather Advisory December 8, 09:00am until December 9, 06:00am
Click here for hazard details and duration
Winter Weather Advisory
  • Tonight

    Tonight: Increasing clouds, with a low around -7. Northwest wind around 5 mph becoming southwest after midnight. Winds could gust as high as 15 mph.

    Low: -7 °F

    Increasing
    Clouds

  • Monday

    Monday: A 50 percent chance of snow, mainly after 9am.  Cloudy, with a high near 18. Southwest wind 5 to 10 mph, with gusts as high as 20 mph.  New snow accumulation of less than one inch possible.

    High: 18 °F

    Chance Snow

  • Monday Night

    Monday Night: Snow, mainly before midnight. The snow could be heavy at times.  Low around 8. Southwest wind around 5 mph becoming northwest after midnight. Winds could gust as high as 20 mph.  Chance of precipitation is 90%. New snow accumulation of 3 to 5 inches possible.

    Low: 8 °F

    Heavy Snow
    then Chance
    Snow

  • Tuesday

    Tuesday: A 40 percent chance of snow, mainly after noon.  Mostly cloudy, with a high near 21. Northwest wind around 5 mph becoming calm. Winds could gust as high as 15 mph.

    High: 21 °F

    Chance Snow

  • Tuesday Night

    Tuesday Night: Snow likely, mainly before midnight.  Mostly cloudy, with a low around 4. East wind 5 to 10 mph becoming north after midnight. Winds could gust as high as 25 mph.  Chance of precipitation is 60%. New snow accumulation of 1 to 2 inches possible.

    Low: 4 °F

    Snow Likely
    then Chance
    Snow

  • Wednesday

    Wednesday: A 20 percent chance of snow.  Mostly sunny, with a high near 14. North wind 5 to 10 mph, with gusts as high as 25 mph.

    High: 14 °F

    Slight Chance
    Snow

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 0. Northwest wind around 5 mph, with gusts as high as 20 mph.

    Low: 0 °F

    Mostly Cloudy

  • Thursday

    Thursday: A slight chance of snow after noon.  Mostly sunny, with a high near 16. Northwest wind around 5 mph, with gusts as high as 15 mph.

    High: 16 °F

    Mostly Sunny
    then Slight
    Chance Snow

  • Thursday Night

    Thursday Night: A slight chance of snow.  Mostly cloudy, with a low around 0. Northwest wind 5 to 10 mph, with gusts as high as 20 mph.

    Low: 0 °F

    Slight Chance
    Snow

Detailed Forecast

Tonight
Increasing clouds, with a low around -7. Northwest wind around 5 mph becoming southwest after midnight. Winds could gust as high as 15 mph.
Monday
A 50 percent chance of snow, mainly after 9am. Cloudy, with a high near 18. Southwest wind 5 to 10 mph, with gusts as high as 20 mph. New snow accumulation of less than one inch possible.
Monday Night
Snow, mainly before midnight. The snow could be heavy at times. Low around 8. Southwest wind around 5 mph becoming northwest after midnight. Winds could gust as high as 20 mph. Chance of precipitation is 90%. New snow accumulation of 3 to 5 inches possible.
Tuesday
A 40 percent chance of snow, mainly after noon. Mostly cloudy, with a high near 21. Northwest wind around 5 mph becoming calm. Winds could gust as high as 15 mph.
Tuesday Night
Snow likely, mainly before midnight. Mostly cloudy, with a low around 4. East wind 5 to 10 mph becoming north after midnight. Winds could gust as high as 25 mph. Chance of precipitation is 60%. New snow accumulation of 1 to 2 inches possible.
Wednesday
A 20 percent chance of snow. Mostly sunny, with a high near 14. North wind 5 to 10 mph, with gusts as high as 25 mph.
Wednesday Night
Mostly cloudy, with a low around 0. Northwest wind around 5 mph, with gusts as high as 20 mph.
Thursday
A slight chance of snow after noon. Mostly sunny, with a high near 16. Northwest wind around 5 mph, with gusts as high as 15 mph.
Thursday Night
A slight chance of snow. Mostly cloudy, with a low around 0. Northwest wind 5 to 10 mph, with gusts as high as 20 mph.
Friday
A chance of snow, mainly before noon. Mostly cloudy, with a high near 10. Northwest wind around 10 mph, with gusts as high as 30 mph.
Friday Night
Mostly cloudy, with a low around -6. Northwest wind around 10 mph, with gusts as high as 30 mph.
Saturday
Mostly sunny, with a high near 7. Northwest wind around 10 mph, with gusts as high as 25 mph.
Saturday Night
Mostly cloudy, with a low around -6. Northwest wind around 5 mph, with gusts as high as 20 mph.
Sunday
A slight chance of snow. Partly sunny, with a high near 13. West wind around 5 mph, with gusts as high as 15 mph.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
Grand Marais/Cook County Airport MN
 47.83°N 90.39°W
5:41 pm CST Dec 7, 2025
5pm CST Dec 7, 2025-6pm CST Dec 14, 2025
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database