Tracking Late December Winter Storm Expected to Impact the Northern Plains through the Northeast U.S.

A winter storm system will rapidly intensify over the Midwest on Sunday and track through the Great Lakes on Monday. Periods of heavy snow are anticipated across the Upper Great Lakes late Sunday and continuing into Monday. At least 1/10 inch of ice accumulation is expected from a wintry mix across much of the interior Northeast U.S. starting Sunday afternoon. Read More >

Current conditions at

John F Kennedy Memorial Airport (KASX)

Lat: 46.55°NLon: 90.92°WElev: 814ft.

Overcast

34°F

1°C

Humidity 92%
Wind Speed N 13 mph
Barometer 29.69 in (1006.4 mb)
Dewpoint 32°F (0°C)
Visibility 10.00 mi
Wind Chill25°F (-4°C)
Last update 28 Dec 11:53 am CST
Extended Forecast for

Mason WI

Winter Storm Warning until December 29, 06:00am
Click here for hazard details and duration
Winter Storm Warning
  •  
    Winter Storm Warning until December 29, 06:00am

    NOW until 6:00am Mon

    Winter Storm Warning

  • This Afternoon

    High: 33 °F

    Rain/Snow and
    Areas
    Freezing Fog

  • Tonight

    Tonight: Snow, mainly before 3am. The snow could be heavy at times.  Areas of blowing snow between 8pm and 3am. Areas of freezing fog before 10pm. Low around 8. Blustery, with a north wind around 15 mph, with gusts as high as 30 mph.  Chance of precipitation is 100%. New snow accumulation of 6 to 10 inches possible.

    Low: 8 °F

    Heavy Snow
    and Areas
    Blowing Snow

  • Monday

    Monday: Partly sunny, with a steady temperature around 11. Blustery, with a northwest wind 10 to 15 mph, with gusts as high as 30 mph.

    High: 11 °F

    Partly Sunny
    and Blustery

  • Monday Night

    Monday Night: Partly cloudy, with a low around 1. Northwest wind around 5 mph becoming southwest after midnight. Winds could gust as high as 15 mph.

    Low: 1 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Snow likely.  Mostly cloudy, with a high near 24. Southwest wind 5 to 10 mph, with gusts as high as 20 mph.  Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.

    High: 24 °F

    Snow Likely

  • Tuesday Night

    Tuesday Night: A 20 percent chance of snow.  Mostly cloudy, with a low around 6. Northwest wind 5 to 10 mph, with gusts as high as 15 mph.

    Low: 6 °F

    Slight Chance
    Snow

  • Wednesday

    Wednesday: A chance of snow.  Mostly cloudy, with a high near 12. Northwest wind 5 to 10 mph, with gusts as high as 15 mph.

    High: 12 °F

    Chance Snow

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around -5. Northwest wind around 5 mph.

    Low: -5 °F

    Mostly Cloudy

Detailed Forecast

This Afternoon
Snow, possibly mixed with rain, becoming all snow after 2pm. The snow could be heavy at times. Areas of freezing fog after 3pm. Temperature falling to around 28 by 5pm. Breezy, with a north wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 100%. Total daytime snow accumulation of 3 to 5 inches possible.
Tonight
Snow, mainly before 3am. The snow could be heavy at times. Areas of blowing snow between 8pm and 3am. Areas of freezing fog before 10pm. Low around 8. Blustery, with a north wind around 15 mph, with gusts as high as 30 mph. Chance of precipitation is 100%. New snow accumulation of 6 to 10 inches possible.
Monday
Partly sunny, with a steady temperature around 11. Blustery, with a northwest wind 10 to 15 mph, with gusts as high as 30 mph.
Monday Night
Partly cloudy, with a low around 1. Northwest wind around 5 mph becoming southwest after midnight. Winds could gust as high as 15 mph.
Tuesday
Snow likely. Mostly cloudy, with a high near 24. Southwest wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.
Tuesday Night
A 20 percent chance of snow. Mostly cloudy, with a low around 6. Northwest wind 5 to 10 mph, with gusts as high as 15 mph.
Wednesday
A chance of snow. Mostly cloudy, with a high near 12. Northwest wind 5 to 10 mph, with gusts as high as 15 mph.
Wednesday Night
Mostly cloudy, with a low around -5. Northwest wind around 5 mph.
New Year's Day
Mostly sunny, with a high near 7. West wind 5 to 10 mph, with gusts as high as 20 mph.
Thursday Night
Mostly clear, with a low around -3. West wind around 5 mph, with gusts as high as 15 mph.
Friday
Mostly sunny, with a high near 15. West wind 5 to 10 mph, with gusts as high as 15 mph.
Friday Night
Mostly cloudy, with a low around 2. West wind around 5 mph.
Saturday
A slight chance of snow. Mostly cloudy, with a high near 20. West wind 5 to 10 mph, with gusts as high as 15 mph.
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ABOUT THIS FORECAST

 
Point Forecast:
Mason WI
 46.43°N 91.07°W
11:47 am CST Dec 28, 2025
12pm CST Dec 28, 2025-6pm CST Jan 3, 2026
 
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Additional Resources

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Hourly Weather Forecast

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