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.

Light Snow Fog/Mist and Breezy

19°F

-7°C

Humidity 88%
Wind Speed S 21 mph
Barometer 30.02 in (1020.1 mb)
Dewpoint 16°F (-9°C)
Visibility 1.75 mi
Wind Chill3°F (-16°C)
Last update 31 Jan 9:53 pm CST
Extended Forecast for

5 Miles NNE Watertown Municipal Airport SD

  • Tonight

    Tonight: Snow before 2am, then snow and freezing rain likely between 2am and 3am, then a chance of snow after 3am.  Temperature rising to around 25 by 5am. South southwest wind 13 to 17 mph becoming west after midnight. Winds could gust as high as 26 mph.  Chance of precipitation is 80%. Little or no ice accumulation expected.  Total nighttime snow accumulation of less than a half inch possible.

    Low: 19 °F

    Snow then
    Wintry Mix
    Likely

  • Sunday

    Sunday: A slight chance of snow and freezing rain before 8am, then a slight chance of snow between 8am and 9am.  Patchy blowing snow between noon and 1pm. Mostly cloudy, with a high near 31. Northwest wind 10 to 17 mph, with gusts as high as 28 mph.  Chance of precipitation is 20%.

    High: 31 °F

    Slight Chance
    Wintry Mix
    then Patchy
    Blowing Snow

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 8. North northwest wind 5 to 9 mph becoming light and variable.

    Low: 8 °F

    Mostly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 18. Northeast wind around 6 mph.

    High: 18 °F

    Partly Sunny

  • Monday Night

    Monday Night: A slight chance of snow.  Mostly cloudy, with a low around 4. East northeast wind 3 to 6 mph.  Chance of precipitation is 20%.

    Low: 4 °F

    Slight Chance
    Snow

  • Tuesday

    Tuesday: Partly sunny, with a high near 19. Light and variable wind becoming east northeast around 5 mph.

    High: 19 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 9. Calm wind becoming west around 6 mph after midnight.

    Low: 9 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 28. Northwest wind 6 to 10 mph.

    High: 28 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 18. Southwest wind 7 to 11 mph, with gusts as high as 20 mph.

    Low: 18 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Snow before 2am, then snow and freezing rain likely between 2am and 3am, then a chance of snow after 3am. Temperature rising to around 25 by 5am. South southwest wind 13 to 17 mph becoming west after midnight. Winds could gust as high as 26 mph. Chance of precipitation is 80%. Little or no ice accumulation expected. Total nighttime snow accumulation of less than a half inch possible.
Sunday
A slight chance of snow and freezing rain before 8am, then a slight chance of snow between 8am and 9am. Patchy blowing snow between noon and 1pm. Mostly cloudy, with a high near 31. Northwest wind 10 to 17 mph, with gusts as high as 28 mph. Chance of precipitation is 20%.
Sunday Night
Mostly cloudy, with a low around 8. North northwest wind 5 to 9 mph becoming light and variable.
Monday
Partly sunny, with a high near 18. Northeast wind around 6 mph.
Monday Night
A slight chance of snow. Mostly cloudy, with a low around 4. East northeast wind 3 to 6 mph. Chance of precipitation is 20%.
Tuesday
Partly sunny, with a high near 19. Light and variable wind becoming east northeast around 5 mph.
Tuesday Night
Mostly cloudy, with a low around 9. Calm wind becoming west around 6 mph after midnight.
Wednesday
Partly sunny, with a high near 28. Northwest wind 6 to 10 mph.
Wednesday Night
Mostly cloudy, with a low around 18. Southwest wind 7 to 11 mph, with gusts as high as 20 mph.
Thursday
Mostly sunny, with a high near 38.
Thursday Night
Partly cloudy, with a low around 21.
Friday
Mostly sunny, with a high near 29.
Friday Night
Mostly cloudy, with a low around 7.
Saturday
Partly sunny, with a high near 24.
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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)
9:36 pm CST Jan 31, 2026
10pm CST Jan 31, 2026-6pm CST Feb 7, 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