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.

Overcast

18°F

-8°C

Humidity 100%
Wind Speed SE 12 G 18 mph
Barometer 30.09 in
Dewpoint 18°F (-8°C)
Visibility 10.00 mi
Wind Chill5°F (-15°C)
Last update 25 Dec 2:35 pm CST
Extended Forecast for

5 Miles NNE 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 40 percent chance of snow. Cloudy, with a high near 22. Breezy, with a southeast wind around 15 mph, with gusts as high as 35 mph.

    High: 22 °F

    Chance Snow
    and Breezy

  • Tonight

    Tonight: Snow, possibly mixed with freezing rain and sleet before 4am, then snow and freezing rain likely. Patchy fog after 11pm. Temperature rising to around 26 by 4am. Breezy, with a southeast wind 10 to 15 mph decreasing to 5 to 10 mph after midnight. Winds could gust as high as 35 mph. Chance of precipitation is 80%. Little or no ice accumulation expected. New snow and sleet accumulation of around an inch possible.

    Low: 21 °F⇑

    Wintry Mix
    and Patchy
    Fog

  • Friday

    Friday: A chance of snow and freezing rain before 8am, then a chance of snow between 8am and noon. Patchy fog before 11am. Otherwise, mostly cloudy, with a high near 32. South wind around 5 mph becoming northwest in the afternoon. Chance of precipitation is 50%. Little or no snow accumulation expected.

    High: 32 °F

    Chance Wintry
    Mix and
    Patchy Fog
    then Mostly
    Cloudy

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 20. Calm wind becoming south around 5 mph.

    Low: 20 °F

    Mostly Cloudy

  • Saturday

    Saturday: A chance of drizzle or freezing rain before noon, then a chance of rain or freezing rain between noon and 3pm, then a chance of rain after 3pm. Cloudy, with a high near 34. Southeast wind around 5 mph, with gusts as high as 15 mph. Chance of precipitation is 40%.

    High: 34 °F

    Chance
    Rain/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 23. Southeast wind around 5 mph becoming northwest after midnight. Winds could gust as high as 15 mph. Chance of precipitation is 50%. New snow accumulation of less than a half inch possible.

    Low: 23 °F

    Chance Wintry
    Mix

  • Sunday

    Sunday: A chance of snow. Cloudy, with a high near 31. Blustery, with a northwest wind 5 to 15 mph, with gusts as high as 30 mph.

    High: 31 °F

    Chance Snow
    and Blustery

  • Sunday Night

    Sunday Night: A chance of snow. Cloudy, with a low around -2. Blustery, with a north wind around 15 mph, with gusts as high as 35 mph.

    Low: -2 °F

    Chance Snow
    and Blustery

  • Monday

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

    High: 6 °F

    Partly Sunny
    and Blustery

Detailed Forecast

Christmas Day
A 40 percent chance of snow. Cloudy, with a high near 22. Breezy, with a southeast wind around 15 mph, with gusts as high as 35 mph.
Tonight
Snow, possibly mixed with freezing rain and sleet before 4am, then snow and freezing rain likely. Patchy fog after 11pm. Temperature rising to around 26 by 4am. Breezy, with a southeast wind 10 to 15 mph decreasing to 5 to 10 mph after midnight. Winds could gust as high as 35 mph. Chance of precipitation is 80%. Little or no ice accumulation expected. New snow and sleet accumulation of around an inch possible.
Friday
A chance of snow and freezing rain before 8am, then a chance of snow between 8am and noon. Patchy fog before 11am. Otherwise, mostly cloudy, with a high near 32. South wind around 5 mph becoming northwest in the afternoon. Chance of precipitation is 50%. Little or no snow accumulation expected.
Friday Night
Mostly cloudy, with a low around 20. Calm wind becoming south around 5 mph.
Saturday
A chance of drizzle or freezing rain before noon, then a chance of rain or freezing rain between noon and 3pm, then a chance of rain after 3pm. Cloudy, with a high near 34. Southeast wind around 5 mph, with gusts as high as 15 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 23. Southeast wind around 5 mph becoming northwest after midnight. Winds could gust as high as 15 mph. Chance of precipitation is 50%. New snow accumulation of less than a half inch possible.
Sunday
A chance of snow. Cloudy, with a high near 31. Blustery, with a northwest wind 5 to 15 mph, with gusts as high as 30 mph.
Sunday Night
A chance of snow. Cloudy, with a low around -2. Blustery, with a north wind around 15 mph, with gusts as high as 35 mph.
Monday
Partly sunny, with a high near 6. Blustery, with a northwest wind around 15 mph, with gusts as high as 35 mph.
Monday Night
A slight chance of snow after midnight. Mostly cloudy, with a low around -4. Blustery, with a northwest wind 5 to 15 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
Mostly cloudy, with a low around -8. Northwest wind around 10 mph, with gusts as high as 25 mph.
Wednesday
A slight chance of snow. Partly sunny and cold, with a high near 4. Northwest wind around 10 mph, with gusts as high as 25 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles NNE Grand Marais/Cook County Airport MN
 47.89°N 90.32°W
Last Update:
1:52 pm CST Dec 25, 2025
Forecast Valid:
2pm CST Dec 25, 2025-6pm CST Dec 31, 2025
 
Forecast Discussion
 
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