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 9 G 17 mph
Barometer 30.08 in
Dewpoint 18°F (-8°C)
Visibility 10.00 mi
Wind Chill7°F (-14°C)
Last update 25 Dec 2:55 pm CST
Extended Forecast for

25 Miles NW 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: 23 °F

    Chance Snow
    and Breezy

  • Tonight

    Tonight: Snow before 3am, then snow and freezing rain likely. Patchy fog after 11pm. Steady temperature around 25. Breezy, with a south 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 accumulation of less than a half inch possible.

    Low: 25 °F

    Snow Likely
    and Patchy
    Fog then
    Wintry Mix
    and Patchy
    Fog

  • Friday

    Friday: A chance of snow and freezing rain before 8am, then a chance of snow between 8am and 9am. Patchy fog before noon. Otherwise, cloudy, with a high near 33. South wind around 5 mph becoming northwest in the afternoon. Chance of precipitation is 40%.

    High: 33 °F

    Chance Wintry
    Mix and
    Patchy Fog
    then Cloudy

  • Friday Night

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

    Low: 20 °F

    Mostly Cloudy

  • Saturday

    Saturday: A chance of freezing rain before 9am, then a chance of drizzle or freezing rain between 9am and noon, then a chance of drizzle after noon. Cloudy, with a high near 36. Southeast wind around 5 mph, with gusts as high as 15 mph. Chance of precipitation is 50%.

    High: 36 °F

    Chance
    Drizzle/Freezing
    Rain then
    Chance
    Drizzle

  • Saturday Night

    Saturday Night: A chance of drizzle or freezing rain before midnight, then a chance of snow and freezing rain between midnight and 3am, then a chance of snow after 3am. Cloudy, with a low around 22. Southeast wind around 5 mph becoming calm. Chance of precipitation is 40%.

    Low: 22 °F

    Chance Wintry
    Mix

  • Sunday

    Sunday: A chance of snow. Cloudy, with a high near 31. Northwest wind 5 to 10 mph, with gusts as high as 25 mph.

    High: 31 °F

    Chance Snow

  • Sunday Night

    Sunday Night: A chance of snow, mainly before midnight. Cloudy, with a low around -4. Northwest wind around 10 mph, with gusts as high as 30 mph.

    Low: -4 °F

    Chance Snow

Detailed Forecast

Christmas Day
A 40 percent chance of snow. Cloudy, with a high near 23. Breezy, with an east wind 5 to 15 mph, with gusts as high as 35 mph.
Tonight
Snow before 3am, then snow and freezing rain likely. Patchy fog after 11pm. Steady temperature around 25. Breezy, with a south 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 accumulation of less than a half inch possible.
Friday
A chance of snow and freezing rain before 8am, then a chance of snow between 8am and 9am. Patchy fog before noon. Otherwise, cloudy, with a high near 33. South wind around 5 mph becoming northwest in the afternoon. Chance of precipitation is 40%.
Friday Night
Mostly cloudy, with a low around 20. Calm wind becoming southeast around 5 mph.
Saturday
A chance of freezing rain before 9am, then a chance of drizzle or freezing rain between 9am and noon, then a chance of drizzle after noon. Cloudy, with a high near 36. Southeast wind around 5 mph, with gusts as high as 15 mph. Chance of precipitation is 50%.
Saturday Night
A chance of drizzle or freezing rain before midnight, then a chance of snow and freezing rain between midnight and 3am, then a chance of snow after 3am. Cloudy, with a low around 22. Southeast wind around 5 mph becoming calm. Chance of precipitation is 40%.
Sunday
A chance of snow. Cloudy, with a high near 31. Northwest wind 5 to 10 mph, with gusts as high as 25 mph.
Sunday Night
A chance of snow, mainly before midnight. Cloudy, with a low around -4. Northwest wind around 10 mph, with gusts as high as 30 mph.
Monday
Mostly cloudy, with a high near 6. Northwest wind around 10 mph, with gusts as high as 30 mph.
Monday Night
A slight chance of snow after midnight. Mostly cloudy, with a low around -6. West wind around 5 mph, with gusts as high as 25 mph.
Tuesday
A chance of snow. Mostly cloudy, with a high near 13. West wind around 5 mph, with gusts as high as 20 mph.
Tuesday Night
Mostly cloudy, with a low around -9. Northwest wind around 5 mph, with gusts as high as 20 mph.
Wednesday
A slight chance of snow. Partly sunny and cold, with a high near 4. Northwest wind around 5 mph, with gusts as high as 20 mph.
Wednesday Night
Mostly cloudy, with a low around -15. Northwest wind around 5 mph, with gusts as high as 20 mph.
New Year's Day
Mostly sunny and cold, with a high near 3. West wind around 5 mph, with gusts as high as 20 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
25 Miles NW Grand Marais/Cook County Airport MN
 48.09°N 90.78°W
Last Update:
2:57 pm CST Dec 25, 2025
Forecast Valid:
3pm CST Dec 25, 2025-6pm CST Jan 1, 2026
 
Forecast Discussion
 
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