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

Watertown, Watertown Municipal Airport (KATY)

Lat: 44.9°NLon: 97.15°WElev: 1745ft.

N/A

Humidity NA
Wind Speed NA
Barometer NA
Dewpoint N/A
Visibility NA
Last update *** Not a current observation ***
Extended Forecast for

9 Miles S Ortley SD

Wind Advisory until December 29, 12:00am
Winter Weather Advisory December 28, 07:39am until December 29, 03:00am
Click here for hazard details and duration
Wind Advisory
Winter Weather Advisory
  •  
    Wind Advisory until December 29, 12:00am
    Winter Weather Advisory December 28, 07:39am until December 29, 03:00am

    NOW: Multiple hazards in effect

    Click HERE for Details

  • Today

    High: 14 °F

    Snow and
    Blowing Snow
    then Chance
    Snow and
    Blowing Snow

  • Tonight

    Tonight: A chance of snow, mainly before 10pm.  Widespread blowing snow, mainly before 9pm. Mostly cloudy, with a low around -1. Wind chill values as low as -22. Blustery, with a north northwest wind 23 to 29 mph, with gusts as high as 45 mph.  Chance of precipitation is 50%.

    Low: -1 °F

    Chance Snow
    and Blowing
    Snow

  • Monday

    Monday: Patchy blowing snow before 8am. Mostly sunny and cold, with a high near 10. Wind chill values as low as -22. Blustery, with a northwest wind 16 to 21 mph decreasing to 9 to 14 mph in the afternoon. Winds could gust as high as 33 mph.

    High: 10 °F

    Patchy
    Blowing Snow
    and Blustery
    then Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 6. West southwest wind 8 to 11 mph, with gusts as high as 20 mph.

    Low: 6 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Patchy blowing snow between 1pm and 5pm. Partly sunny, with a high near 31. West wind 11 to 17 mph, with gusts as high as 28 mph.

    High: 31 °F

    Mostly Cloudy
    then Patchy
    Blowing Snow

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 10. North northwest wind 10 to 15 mph, with gusts as high as 25 mph.

    Low: 10 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: A chance of snow.  Mostly cloudy, with a high near 19. North northeast wind 10 to 13 mph, with gusts as high as 22 mph.  Chance of precipitation is 40%.

    High: 19 °F

    Chance Snow

  • Wednesday Night

    Wednesday Night: A slight chance of snow before midnight.  Mostly cloudy, with a low around 1. North wind 6 to 11 mph, with gusts as high as 20 mph.  Chance of precipitation is 20%.

    Low: 1 °F

    Slight Chance
    Snow then
    Mostly Cloudy

Detailed Forecast

Today
Snow, mainly before 11am. Widespread blowing snow, mainly after 2pm. Temperature falling to around 5 by 4pm. Wind chill values as low as -19. Windy, with a northwest wind 28 to 30 mph, with gusts as high as 46 mph. Chance of precipitation is 80%. Total daytime snow accumulation of 1 to 3 inches possible.
Tonight
A chance of snow, mainly before 10pm. Widespread blowing snow, mainly before 9pm. Mostly cloudy, with a low around -1. Wind chill values as low as -22. Blustery, with a north northwest wind 23 to 29 mph, with gusts as high as 45 mph. Chance of precipitation is 50%.
Monday
Patchy blowing snow before 8am. Mostly sunny and cold, with a high near 10. Wind chill values as low as -22. Blustery, with a northwest wind 16 to 21 mph decreasing to 9 to 14 mph in the afternoon. Winds could gust as high as 33 mph.
Monday Night
Partly cloudy, with a low around 6. West southwest wind 8 to 11 mph, with gusts as high as 20 mph.
Tuesday
Patchy blowing snow between 1pm and 5pm. Partly sunny, with a high near 31. West wind 11 to 17 mph, with gusts as high as 28 mph.
Tuesday Night
Mostly cloudy, with a low around 10. North northwest wind 10 to 15 mph, with gusts as high as 25 mph.
Wednesday
A chance of snow. Mostly cloudy, with a high near 19. North northeast wind 10 to 13 mph, with gusts as high as 22 mph. Chance of precipitation is 40%.
Wednesday Night
A slight chance of snow before midnight. Mostly cloudy, with a low around 1. North wind 6 to 11 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.
New Year's Day
Partly sunny, with a high near 13. North wind 6 to 10 mph becoming west in the afternoon.
Thursday Night
Mostly cloudy, with a low around 5.
Friday
Partly sunny, with a high near 21.
Friday Night
Partly cloudy, with a low around 9.
Saturday
Partly sunny, with a high near 22.
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ABOUT THIS FORECAST

 
Point Forecast:
9 Miles S Ortley SD
 45.21°N 97.24°W (Elev. 1900 ft)
6:36 am CST Dec 28, 2025
7am CST Dec 28, 2025-6pm CST Jan 3, 2026
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

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