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

19°F

-7°C

Humidity 100%
Wind Speed E 13 G 20 mph
Barometer 30.04 in
Dewpoint 19°F (-7°C)
Visibility 10.00 mi
Wind Chill6°F (-14°C)
Last update 25 Dec 3:55 pm CST
Extended Forecast for

6 Miles N Grand Marais/Cook County Airport MN

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

    NOW until 12:00pm Fri

    Winter Weather Advisory

  • Christmas Day

    High: 21 °F

    Chance Snow
    and Breezy

  • Tonight

    Tonight: Snow, possibly mixed with freezing rain and sleet before 4am, then snow likely, possibly mixed with freezing rain between 4am and 5am, then snow and freezing rain likely, possibly mixed with sleet after 5am. Patchy fog after 11pm. Temperature rising to around 25 by 4am. Breezy, with a southeast wind 5 to 15 mph, with gusts 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 31. South wind around 5 mph becoming northwest in the afternoon. Chance of precipitation is 50%. Little or no snow accumulation expected.

    High: 31 °F

    Chance Wintry
    Mix and
    Patchy Fog
    then Mostly
    Cloudy

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 19. Calm wind becoming southeast around 5 mph after midnight.

    Low: 19 °F

    Mostly Cloudy

  • Saturday

    Saturday: A slight chance of freezing rain before noon, then a chance of drizzle or freezing rain. 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
    Drizzle/Freezing
    Rain

  • Saturday Night

    Saturday Night: A chance of rain before 9pm, then a chance of snow. 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
    Rain/Snow
    then Chance
    Snow

  • 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 -3. Blustery, with a northwest wind 15 to 20 mph, with gusts as high as 35 mph.

    Low: -3 °F

    Chance Snow
    and Blustery

Detailed Forecast

Christmas Day
A 40 percent chance of snow. Cloudy, with a high near 21. 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 likely, possibly mixed with freezing rain between 4am and 5am, then snow and freezing rain likely, possibly mixed with sleet after 5am. Patchy fog after 11pm. Temperature rising to around 25 by 4am. Breezy, with a southeast wind 5 to 15 mph, with gusts 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 31. 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 19. Calm wind becoming southeast around 5 mph after midnight.
Saturday
A slight chance of freezing rain before noon, then a chance of drizzle or freezing rain. 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 rain before 9pm, then a chance of snow. 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 -3. Blustery, with a northwest wind 15 to 20 mph, with gusts as high as 35 mph.
Monday
Partly sunny, with a high near 6. Blustery, with a northwest wind 15 to 20 mph, with gusts as high as 35 mph.
Monday Night
A slight chance of snow after midnight. Mostly cloudy, with a low around -6. Blustery, with a northwest wind 10 to 15 mph, with gusts as high as 30 mph.
Tuesday
A chance of snow. Mostly cloudy, with a high near 12. West wind around 10 mph, with gusts as high as 20 mph.
Tuesday Night
Mostly cloudy, with a low around -9. Blustery, with a northwest wind 10 to 15 mph, with gusts as high as 25 mph.
Wednesday
A slight chance of snow. Partly sunny and cold, with a high near 3. Northwest wind around 10 mph, with gusts as high as 25 mph.
Wednesday Night
Mostly cloudy, with a low around -14. Blustery, with a northwest wind 10 to 15 mph, with gusts as high as 25 mph.
New Year's Day
Mostly sunny and cold, with a high near 2. West 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:
6 Miles N Grand Marais/Cook County Airport MN
 47.93°N 90.38°W
Last Update:
3:11 pm CST Dec 25, 2025
Forecast Valid:
4pm CST Dec 25, 2025-6pm CST Jan 1, 2026
 
Forecast Discussion
 
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