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

Prolonged Atmospheric River Will Impact the Northwest Early this Week

A weather system in the Pacific Northwest will produce rain throughout the day, before a potent atmospheric river produces a prolonged round of heavy rainfall, widespread urban and river flooding, and high elevation snow to the region Monday through Wednesday. Showers and thunderstorms may produce isolated damaging winds, a brief tornado, and locally heavy rainfall across parts of Florida today. Read More >

Current conditions at

John F Kennedy Memorial Airport (KASX)

Lat: 46.55°NLon: 90.92°WElev: 814ft.

Fair

11°F

-12°C

Humidity 58%
Wind Speed SW 8 mph
Barometer 30.31 in (1028.7 mb)
Dewpoint -1°F (-18°C)
Visibility 10.00 mi
Wind Chill-1°F (-18°C)
Last update 7 Dec 2:53 pm CST
Extended Forecast for

Mellen WI

  • Tonight

    Tonight: Patchy fog between 7pm and 5am. Otherwise, mostly cloudy, with a low around -7. Calm wind becoming south around 5 mph after midnight. Winds could gust as high as 15 mph.

    Low: -7 °F

    Patchy Fog

  • Monday

    Monday: A 20 percent chance of snow after 3pm. Mostly cloudy, with a high near 19. Breezy, with a south wind 5 to 15 mph, with gusts as high as 25 mph.

    High: 19 °F

    Mostly Cloudy
    then Slight
    Chance Snow
    and Breezy

  • Monday Night

    Monday Night: Snow, mainly before midnight. Low around 11. Breezy, with a south wind 5 to 15 mph becoming west after midnight. Winds could gust as high as 25 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 3 inches possible.

    Low: 11 °F

    Snow and
    Breezy then
    Chance Snow

  • Tuesday

    Tuesday: Snow likely after noon. Mostly cloudy, with a high near 26. West wind around 5 mph becoming southeast in the afternoon. Chance of precipitation is 60%. New snow accumulation of less than one inch possible.

    High: 26 °F

    Mostly Cloudy
    then Snow
    Likely

  • Tuesday Night

    Tuesday Night: Snow. Low around 16. Southeast wind 5 to 10 mph becoming north after midnight. Winds could gust as high as 20 mph. Chance of precipitation is 90%. New snow accumulation of 3 to 5 inches possible.

    Low: 16 °F

    Snow

  • Wednesday

    Wednesday: A 50 percent chance of snow. Mostly cloudy, with a high near 24. North wind 5 to 10 mph, with gusts as high as 20 mph. New snow accumulation of less than one inch possible.

    High: 24 °F

    Chance Snow

  • Wednesday Night

    Wednesday Night: A slight chance of snow before midnight. Mostly cloudy, with a low around 2. West wind around 5 mph.

    Low: 2 °F

    Slight Chance
    Snow then
    Mostly Cloudy

  • Thursday

    Thursday: A chance of snow, mainly after noon. Mostly cloudy, with a high near 18. Northwest wind around 5 mph.

    High: 18 °F

    Chance Snow

  • Thursday Night

    Thursday Night: A chance of snow. Mostly cloudy, with a low around 1. West wind 5 to 10 mph, with gusts as high as 20 mph.

    Low: 1 °F

    Chance Snow

Detailed Forecast

Tonight
Patchy fog between 7pm and 5am. Otherwise, mostly cloudy, with a low around -7. Calm wind becoming south around 5 mph after midnight. Winds could gust as high as 15 mph.
Monday
A 20 percent chance of snow after 3pm. Mostly cloudy, with a high near 19. Breezy, with a south wind 5 to 15 mph, with gusts as high as 25 mph.
Monday Night
Snow, mainly before midnight. Low around 11. Breezy, with a south wind 5 to 15 mph becoming west after midnight. Winds could gust as high as 25 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 3 inches possible.
Tuesday
Snow likely after noon. Mostly cloudy, with a high near 26. West wind around 5 mph becoming southeast in the afternoon. Chance of precipitation is 60%. New snow accumulation of less than one inch possible.
Tuesday Night
Snow. Low around 16. Southeast wind 5 to 10 mph becoming north after midnight. Winds could gust as high as 20 mph. Chance of precipitation is 90%. New snow accumulation of 3 to 5 inches possible.
Wednesday
A 50 percent chance of snow. Mostly cloudy, with a high near 24. North wind 5 to 10 mph, with gusts as high as 20 mph. New snow accumulation of less than one inch possible.
Wednesday Night
A slight chance of snow before midnight. Mostly cloudy, with a low around 2. West wind around 5 mph.
Thursday
A chance of snow, mainly after noon. Mostly cloudy, with a high near 18. Northwest wind around 5 mph.
Thursday Night
A chance of snow. Mostly cloudy, with a low around 1. West wind 5 to 10 mph, with gusts as high as 20 mph.
Friday
A chance of snow. Mostly cloudy, with a high near 10. West wind around 10 mph, with gusts as high as 25 mph.
Friday Night
A chance of snow. Mostly cloudy, with a low around -4. West wind around 10 mph, with gusts as high as 25 mph.
Saturday
Partly sunny, with a high near 7. West wind around 10 mph, with gusts as high as 20 mph.
Saturday Night
A slight chance of snow. Mostly cloudy, with a low around -5. West wind around 5 mph, with gusts as high as 15 mph.
Sunday
A slight chance of snow. Partly sunny, with a high near 12. Southwest wind 5 to 10 mph, with gusts as high as 15 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Mellen WI
 46.32°N 90.65°W
Last Update:
3:11 pm CST Dec 7, 2025
Forecast Valid:
3pm CST Dec 7, 2025-6pm CST Dec 14, 2025
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation