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

-6°F

-21°C

Humidity 83%
Wind Speed SE 6 mph
Barometer 30.51 in (1038.3 mb)
Dewpoint -10°F (-23°C)
Visibility 10.00 mi
Wind Chill-19°F (-28°C)
Last update 31 Jan 3:53 am CST
Extended Forecast for

6 Miles WSW Watertown SD

  • Overnight

    Overnight: Mostly clear, with a steady temperature around -5. Wind chill values as low as -21. South wind 7 to 10 mph.

    Low: -5 °F

    Mostly Clear

  • Saturday

    Saturday: Snow likely, mainly after 4pm.  Patchy blowing snow after 5pm. Increasing clouds, with a high near 20. Wind chill values as low as -22. Breezy, with a south wind 11 to 16 mph increasing to 17 to 22 mph in the afternoon. Winds could gust as high as 36 mph.  Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.

    High: 20 °F

    Mostly Sunny
    then Snow
    Likely and
    Patchy
    Blowing Snow

  • Saturday Night

    Saturday Night: Snow, mainly before midnight.  Patchy blowing snow before 9pm. Temperature rising to around 24 by 5am. Breezy, with a south wind 13 to 22 mph becoming west after midnight. Winds could gust as high as 34 mph.  Chance of precipitation is 90%. New snow accumulation of less than a half inch possible.

    Low: 17 °F

    Snow and
    Patchy
    Blowing Snow
    then Chance
    Snow

  • Sunday

    Sunday: Patchy blowing snow between 11am 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

    Patchy
    Blowing Snow

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 10. North northwest wind 5 to 9 mph becoming light and variable.

    Low: 10 °F

    Mostly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 22. East wind 5 to 7 mph.

    High: 22 °F

    Partly Sunny

  • Monday Night

    Monday Night: A chance of snow.  Mostly cloudy, with a low around 7. East northeast wind around 7 mph.  Chance of precipitation is 30%.

    Low: 7 °F

    Chance Snow

  • Tuesday

    Tuesday: A slight chance of snow.  Partly sunny, with a high near 20. North wind 5 to 7 mph.  Chance of precipitation is 20%.

    High: 20 °F

    Slight Chance
    Snow

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 7. Light and variable wind becoming west around 6 mph after midnight.

    Low: 7 °F

    Mostly Cloudy

Detailed Forecast

Overnight
Mostly clear, with a steady temperature around -5. Wind chill values as low as -21. South wind 7 to 10 mph.
Saturday
Snow likely, mainly after 4pm. Patchy blowing snow after 5pm. Increasing clouds, with a high near 20. Wind chill values as low as -22. Breezy, with a south wind 11 to 16 mph increasing to 17 to 22 mph in the afternoon. Winds could gust as high as 36 mph. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.
Saturday Night
Snow, mainly before midnight. Patchy blowing snow before 9pm. Temperature rising to around 24 by 5am. Breezy, with a south wind 13 to 22 mph becoming west after midnight. Winds could gust as high as 34 mph. Chance of precipitation is 90%. New snow accumulation of less than a half inch possible.
Sunday
Patchy blowing snow between 11am 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. North northwest wind 5 to 9 mph becoming light and variable.
Monday
Partly sunny, with a high near 22. East wind 5 to 7 mph.
Monday Night
A chance of snow. Mostly cloudy, with a low around 7. East northeast wind around 7 mph. Chance of precipitation is 30%.
Tuesday
A slight chance of snow. Partly sunny, with a high near 20. North wind 5 to 7 mph. Chance of precipitation is 20%.
Tuesday Night
Mostly cloudy, with a low around 7. Light and variable wind becoming west around 6 mph after midnight.
Wednesday
Partly sunny, with a high near 26.
Wednesday Night
Mostly cloudy, with a low around 17.
Thursday
Mostly sunny, with a high near 38.
Thursday Night
Partly cloudy, with a low around 19.
Friday
Partly sunny, with a high near 28.
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ABOUT THIS FORECAST

 
Point Forecast:
6 Miles WSW Watertown SD
 44.88°N 97.26°W (Elev. 1749 ft)
3:36 am CST Jan 31, 2026
3am CST Jan 31, 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