Another Arctic Blast in the East; Eastern U.S. Winter Storm

A powerful Arctic blast will bring dangerously cold, record low temperatures to the upper Ohio Valley, Mid-Atlantic, Gulf Coast and Southeast U.S. this weekend. A rapidly deepening storm will produce widespread heavy snow and wind from the southern Appalachians across the Carolinas and southern Virginia into Sunday. Storm-force winds and coastal flooding will be possible along the East Coast. Read More >

Hazardous Weather Conditions

Current conditions at

Watertown, Watertown Municipal Airport (KATY)

Lat: 44.9°NLon: 97.15°WElev: 1745ft.

Fair

-4°F

-20°C

Humidity 79%
Wind Speed Calm
Barometer 30.63 in (1042.5 mb)
Dewpoint -9°F (-23°C)
Visibility 10.00 mi
Last update 30 Jan 9:53 pm CST
Extended Forecast for

5 Miles NNE Watertown Municipal Airport SD

  • Tonight

    Tonight: Mostly clear, with a low around -10. Wind chill values as low as -23. Calm wind becoming south 5 to 8 mph after midnight.

    Low: -10 °F

    Mostly Clear

  • Saturday

    Saturday: Snow, mainly after 4pm.  Patchy blowing snow after 11am. High near 20. Wind chill values as low as -23. Breezy, with a south wind 9 to 14 mph increasing to 21 to 26 mph in the afternoon. Winds could gust as high as 43 mph.  Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.

    High: 20 °F

    Snow and
    Patchy
    Blowing Snow

  • Saturday Night

    Saturday Night: Snow, mainly before 1am.  Patchy blowing snow before midnight. Temperature falling to near 17 by 8pm, then rising to around 25 during the remainder of the night. Breezy, with a south southwest wind 20 to 25 mph becoming west southwest 11 to 16 mph after midnight. Winds could gust as high as 40 mph.  Chance of precipitation is 100%. New snow accumulation of less than a half inch possible.

    Low: 17 °F

    Snow and
    Patchy
    Blowing Snow
    then Snow
    Likely

  • Sunday

    Sunday: Patchy blowing snow between noon and 2pm. Mostly cloudy, with a high near 31. Northwest wind 11 to 17 mph, with gusts as high as 28 mph.

    High: 31 °F

    Mostly Cloudy
    then Patchy
    Blowing Snow

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 10. Northwest wind 5 to 9 mph becoming calm  after midnight.

    Low: 10 °F

    Mostly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 23. East southeast wind 3 to 7 mph.

    High: 23 °F

    Partly Sunny

  • Monday Night

    Monday Night: A slight chance of snow.  Mostly cloudy, with a low around 11. East wind around 6 mph.  Chance of precipitation is 20%.

    Low: 11 °F

    Slight Chance
    Snow

  • Tuesday

    Tuesday: A slight chance of snow.  Mostly cloudy, with a high near 23. East wind 6 to 9 mph becoming north northwest in the afternoon.  Chance of precipitation is 20%.

    High: 23 °F

    Slight Chance
    Snow

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 10. West northwest wind around 6 mph.

    Low: 10 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Mostly clear, with a low around -10. Wind chill values as low as -23. Calm wind becoming south 5 to 8 mph after midnight.
Saturday
Snow, mainly after 4pm. Patchy blowing snow after 11am. High near 20. Wind chill values as low as -23. Breezy, with a south wind 9 to 14 mph increasing to 21 to 26 mph in the afternoon. Winds could gust as high as 43 mph. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.
Saturday Night
Snow, mainly before 1am. Patchy blowing snow before midnight. Temperature falling to near 17 by 8pm, then rising to around 25 during the remainder of the night. Breezy, with a south southwest wind 20 to 25 mph becoming west southwest 11 to 16 mph after midnight. Winds could gust as high as 40 mph. Chance of precipitation is 100%. New snow accumulation of less than a half inch possible.
Sunday
Patchy blowing snow between noon and 2pm. Mostly cloudy, with a high near 31. Northwest wind 11 to 17 mph, with gusts as high as 28 mph.
Sunday Night
Mostly cloudy, with a low around 10. Northwest wind 5 to 9 mph becoming calm after midnight.
Monday
Partly sunny, with a high near 23. East southeast wind 3 to 7 mph.
Monday Night
A slight chance of snow. Mostly cloudy, with a low around 11. East wind around 6 mph. Chance of precipitation is 20%.
Tuesday
A slight chance of snow. Mostly cloudy, with a high near 23. East wind 6 to 9 mph becoming north northwest in the afternoon. Chance of precipitation is 20%.
Tuesday Night
Mostly cloudy, with a low around 10. West northwest wind around 6 mph.
Wednesday
Partly sunny, with a high near 25.
Wednesday Night
Mostly cloudy, with a low around 17.
Thursday
Mostly sunny, with a high near 37.
Thursday Night
Partly cloudy, with a low around 17.
Friday
Partly sunny, with a high near 26.
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles NNE Watertown Municipal Airport SD
 44.97°N 97.12°W (Elev. 1745 ft)
10:36 pm CST Jan 30, 2026
10pm CST Jan 30, 2026-6pm CST Feb 6, 2026
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database