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

Atmospheric River Bringing Heavy Rain to Southern California and Heavy Snow to the Sierra Nevadas

A strong atmospheric river will continue heavy rain over southern California through Friday. The heaviest rainfall is ongoing today in the Los Angeles Basin. Flash and urban flooding is possible. A prolonged heavy snowfall has begun over the Sierra Nevada Mountains and will continue through Friday. Travel will become increasingly difficult over the passes due to snow and strong winds. Read More >

Hazardous Weather Conditions

Current conditions at

Grand Marais/Cook County Airport (KCKC)

Lat: 47.84°NLon: 90.39°WElev: 1784ft.

Fair

7°F

-14°C

Humidity 92%
Wind Speed Calm
Barometer 30.23 in
Dewpoint 5°F (-15°C)
Visibility 10.00 mi
Last update 25 Dec 6:35 am CST
Extended Forecast for

9 Miles WNW Grand Marais/Cook County Airport MN

Winter Weather Advisory December 25, 03:00pm until December 26, 12:00pm
Click here for hazard details and duration
Winter Weather Advisory

  • Christmas Day

    Christmas Day: A chance of flurries between 11am and noon, then a chance of snow after noon. Cloudy, with a high near 23. Breezy, with a northeast wind 5 to 15 mph becoming southeast in the afternoon. Winds could gust as high as 30 mph. Chance of precipitation is 50%. Total daytime snow accumulation of less than a half inch possible.

    High: 23 °F

    Mostly Cloudy
    then Chance
    Snow and
    Breezy

  • Tonight

    Tonight: Snow, possibly mixed with sleet before 3am, then snow and sleet, possibly mixed with freezing rain. Patchy fog. Temperature falling to near 18 by 11pm, then rising to around 23 during the remainder of the night. Breezy, with a southeast wind 5 to 15 mph, with gusts as high as 30 mph. Chance of precipitation is 90%. Little or no ice accumulation expected. New snow and sleet accumulation of around an inch possible.

    Low: 18 °F⇑

    Wintry Mix
    and Patchy
    Fog

  • Friday

    Friday: A chance of snow, freezing rain, and sleet before 10am, then a chance of snow between 10am and noon. Areas of fog before 10am. Otherwise, cloudy, with a high near 32. South wind around 5 mph becoming calm in the afternoon. Chance of precipitation is 40%.

    High: 32 °F

    Chance Wintry
    Mix and Areas
    Fog then
    Mostly Cloudy

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 22. Calm wind becoming southeast around 5 mph after midnight.

    Low: 22 °F

    Mostly Cloudy

  • Saturday

    Saturday: A chance of freezing rain before 9am, then a chance of drizzle or freezing rain. Cloudy, with a high near 35. Southeast wind around 5 mph, with gusts as high as 20 mph. Chance of precipitation is 40%.

    High: 35 °F

    Chance
    Drizzle/Freezing
    Rain

  • Saturday Night

    Saturday Night: A chance of drizzle or freezing rain before midnight, then a chance of drizzle, snow, and freezing rain between midnight and 3am, then a chance of snow after 3am. Cloudy, with a low around 19. Southeast wind around 5 mph becoming northwest after midnight. Winds could gust as high as 15 mph. Chance of precipitation is 40%.

    Low: 19 °F

    Chance Wintry
    Mix

  • Sunday

    Sunday: A chance of snow. Cloudy, with a high near 30. Blustery, with a northwest wind 5 to 15 mph, with gusts as high as 30 mph.

    High: 30 °F

    Chance Snow
    and Blustery

  • Sunday Night

    Sunday Night: A chance of snow, mainly before midnight. Cloudy, with a low around -4. Blustery, with a northwest wind around 15 mph, with gusts as high as 30 mph.

    Low: -4 °F

    Chance Snow
    and Blustery

  • Monday

    Monday: Partly sunny, with a high near 6. Blustery, with a northwest wind 10 to 15 mph, with gusts as high as 35 mph.

    High: 6 °F

    Partly Sunny
    and Blustery

Detailed Forecast

Christmas Day
A chance of flurries between 11am and noon, then a chance of snow after noon. Cloudy, with a high near 23. Breezy, with a northeast wind 5 to 15 mph becoming southeast in the afternoon. Winds could gust as high as 30 mph. Chance of precipitation is 50%. Total daytime snow accumulation of less than a half inch possible.
Tonight
Snow, possibly mixed with sleet before 3am, then snow and sleet, possibly mixed with freezing rain. Patchy fog. Temperature falling to near 18 by 11pm, then rising to around 23 during the remainder of the night. Breezy, with a southeast wind 5 to 15 mph, with gusts as high as 30 mph. Chance of precipitation is 90%. Little or no ice accumulation expected. New snow and sleet accumulation of around an inch possible.
Friday
A chance of snow, freezing rain, and sleet before 10am, then a chance of snow between 10am and noon. Areas of fog before 10am. Otherwise, cloudy, with a high near 32. South wind around 5 mph becoming calm in the afternoon. Chance of precipitation is 40%.
Friday Night
Mostly cloudy, with a low around 22. Calm wind becoming southeast around 5 mph after midnight.
Saturday
A chance of freezing rain before 9am, then a chance of drizzle or freezing rain. Cloudy, with a high near 35. Southeast wind around 5 mph, with gusts as high as 20 mph. Chance of precipitation is 40%.
Saturday Night
A chance of drizzle or freezing rain before midnight, then a chance of drizzle, snow, and freezing rain between midnight and 3am, then a chance of snow after 3am. Cloudy, with a low around 19. Southeast wind around 5 mph becoming northwest after midnight. Winds could gust as high as 15 mph. Chance of precipitation is 40%.
Sunday
A chance of snow. Cloudy, with a high near 30. Blustery, with a northwest wind 5 to 15 mph, with gusts as high as 30 mph.
Sunday Night
A chance of snow, mainly before midnight. Cloudy, with a low around -4. Blustery, with a northwest wind around 15 mph, with gusts as high as 30 mph.
Monday
Partly sunny, with a high near 6. Blustery, with a northwest wind 10 to 15 mph, with gusts as high as 35 mph.
Monday Night
A slight chance of snow after midnight. Mostly cloudy, with a low around -6. Northwest wind 5 to 10 mph, with gusts as high as 30 mph.
Tuesday
A chance of snow. Mostly cloudy, with a high near 13. West wind 5 to 10 mph, with gusts as high as 25 mph.
Tuesday Night
A slight chance of snow. Mostly cloudy, with a low around -6. Northwest wind around 10 mph, with gusts as high as 25 mph.
Wednesday
A slight chance of snow. Partly sunny, with a high near 6. Northwest wind around 10 mph, with gusts as high as 25 mph.
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ABOUT THIS FORECAST

 
Point Forecast:
9 Miles WNW Grand Marais/Cook County Airport MN
 47.9°N 90.57°W
Last Update:
3:09 am CST Dec 25, 2025
Forecast Valid:
6am CST Dec 25, 2025-6pm CST Dec 31, 2025
 
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