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 >

Current conditions at

Grand Marais/Cook County Airport (KCKC)

Lat: 47.84°NLon: 90.39°WElev: 1784ft.

Partly Cloudy

23°F

-5°C

Humidity 86%
Wind Speed N 10 G 21 mph
Barometer 30.04 in
Dewpoint 19°F (-7°C)
Visibility 10.00 mi
Wind Chill13°F (-11°C)
Last update 24 Dec 5:55 pm CST
Extended Forecast for

20 Miles WNW Grand Marais/Cook County Airport MN

  • Tonight

    Tonight: Mostly cloudy, with a low around 6. North wind 5 to 10 mph, with gusts as high as 15 mph.

    Low: 6 °F

    Mostly Cloudy

  • Christmas Day

    Christmas Day: A 50 percent chance of snow, mainly after 2pm. 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. New snow accumulation of less than a half inch possible.

    High: 23 °F

    Slight Chance
    Snow then
    Chance Snow
    and Breezy

  • Thursday Night

    Thursday Night: Snow likely before midnight, then snow, possibly mixed with sleet. Temperature falling to near 20 by 10pm, then rising to around 25 during the remainder of the night. Breezy, with a south wind 5 to 15 mph, with gusts as high as 30 mph. Chance of precipitation is 90%. New snow and sleet accumulation of 1 to 2 inches possible.

    Low: 20 °F⇑

    Snow Likely
    and Breezy
    then
    Snow/Sleet

  • Friday

    Friday: A 30 percent chance of snow before noon. Mostly cloudy, with a high near 33. South wind around 5 mph becoming calm in the morning.

    High: 33 °F

    Chance Snow
    then Mostly
    Cloudy

  • Friday Night

    Friday Night: Cloudy, with a low around 24. Calm wind becoming south around 5 mph after midnight.

    Low: 24 °F

    Cloudy

  • Saturday

    Saturday: A 30 percent chance of rain after noon. Cloudy, with a high near 35. South wind around 5 mph, with gusts as high as 15 mph.

    High: 35 °F

    Cloudy then
    Chance Rain

  • Saturday Night

    Saturday Night: A chance of rain and snow before midnight, then a chance of snow. Cloudy, with a low around 18. Southeast wind around 5 mph becoming northwest after midnight. Winds could gust as high as 20 mph.

    Low: 18 °F

    Chance
    Rain/Snow
    then Chance
    Snow

  • Sunday

    Sunday: A chance of snow. Cloudy, with a high near 27. Blustery, with a northwest wind 5 to 15 mph, with gusts as high as 30 mph.

    High: 27 °F

    Chance Snow
    and Blustery

  • Sunday Night

    Sunday Night: A chance of snow, mainly before midnight. Cloudy, with a low around -3. Blustery, with a northwest wind around 15 mph, with gusts as high as 30 mph.

    Low: -3 °F

    Chance Snow
    and Blustery

Detailed Forecast

Tonight
Mostly cloudy, with a low around 6. North wind 5 to 10 mph, with gusts as high as 15 mph.
Christmas Day
A 50 percent chance of snow, mainly after 2pm. 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. New snow accumulation of less than a half inch possible.
Thursday Night
Snow likely before midnight, then snow, possibly mixed with sleet. Temperature falling to near 20 by 10pm, then rising to around 25 during the remainder of the night. Breezy, with a south wind 5 to 15 mph, with gusts as high as 30 mph. Chance of precipitation is 90%. New snow and sleet accumulation of 1 to 2 inches possible.
Friday
A 30 percent chance of snow before noon. Mostly cloudy, with a high near 33. South wind around 5 mph becoming calm in the morning.
Friday Night
Cloudy, with a low around 24. Calm wind becoming south around 5 mph after midnight.
Saturday
A 30 percent chance of rain after noon. Cloudy, with a high near 35. South wind around 5 mph, with gusts as high as 15 mph.
Saturday Night
A chance of rain and snow before midnight, then a chance of snow. Cloudy, with a low around 18. Southeast wind around 5 mph becoming northwest after midnight. Winds could gust as high as 20 mph.
Sunday
A chance of snow. Cloudy, with a high near 27. 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 -3. 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 30 mph.
Monday Night
A slight chance of snow. Mostly cloudy, with a low around -5. Northwest wind 5 to 10 mph, with gusts as high as 25 mph.
Tuesday
A chance of snow. Mostly cloudy, with a high near 17. 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 -7. 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:
20 Miles WNW Grand Marais/Cook County Airport MN
 47.96°N 90.76°W
Last Update:
6:01 pm CST Dec 24, 2025
Forecast Valid:
6pm CST Dec 24, 2025-6pm CST Dec 31, 2025
 
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