National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Significant Winter Storm to Bring Heavy Snow and Ice Impacts; Dangerously Cold Temperatures Expands Across the East

A significant, long-duration winter storm will bring widespread heavy snow, sleet, and freezing rain from the Southern Rockies to New England through Monday. Widespread travel disruptions, prolonged power outages, and vast tree damage is likely. Frigid temperatures, gusty winds, and dangerous wind chills will expand from the north-central US to the Southern Plains, MS Valley, and Midwest. Read More >

Hazardous Weather Conditions

Current conditions at

Watertown, Watertown Municipal Airport (KATY)

Lat: 44.9°NLon: 97.15°WElev: 1745ft.

A Few Clouds

-13°F

-25°C

Humidity 63%
Wind Speed NW 9 mph
Barometer 30.67 in (1045.1 mb)
Dewpoint -22°F (-30°C)
Visibility 10.00 mi
Wind Chill-31°F (-35°C)
Last update 23 Jan 1:53 pm CST
Extended Forecast for

Clark SDSimilar City Names

Cold Weather Advisory January 24, 01:00am until January 24, 12:00pm
Extreme Cold Warning January 23, 02:30pm until January 23, 03:00pm
Click here for hazard details and duration
Cold Weather Advisory
Extreme Cold Warning
  •  
    Extreme Cold Warning January 23, 02:30pm until January 23, 03:00pm

    NOW until 3:00pm Fri

    Extreme Cold Warning

  • This Afternoon

    High: -9 °F

    Cold

  • Tonight

    Tonight: Mostly cloudy, with a low around -15. Wind chill values as low as -29. Calm wind becoming south 5 to 7 mph after midnight.

    Low: -15 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly sunny and cold, with a high near 1. Wind chill values as low as -31. South wind 8 to 13 mph.

    High: 1 °F

    Cold

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around -7. Wind chill values as low as -20. South southeast wind 6 to 8 mph becoming east after midnight.

    Low: -7 °F

    Mostly Cloudy

  • Sunday

    Sunday: Partly sunny and cold, with a high near -2. East northeast wind 7 to 11 mph becoming north northwest in the afternoon.

    High: -2 °F

    Cold

  • Sunday Night

    Sunday Night: Mostly clear, with a low around -17. North northwest wind 7 to 9 mph becoming southwest after midnight.

    Low: -17 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 16. South southwest wind 10 to 16 mph, with gusts as high as 25 mph.

    High: 16 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 0. Northwest wind 10 to 14 mph.

    Low: 0 °F

    Partly Cloudy

Detailed Forecast

This Afternoon
Mostly sunny and cold, with a high near -9. Wind chill values as low as -31. Northwest wind 7 to 11 mph.
Tonight
Mostly cloudy, with a low around -15. Wind chill values as low as -29. Calm wind becoming south 5 to 7 mph after midnight.
Saturday
Mostly sunny and cold, with a high near 1. Wind chill values as low as -31. South wind 8 to 13 mph.
Saturday Night
Mostly cloudy, with a low around -7. Wind chill values as low as -20. South southeast wind 6 to 8 mph becoming east after midnight.
Sunday
Partly sunny and cold, with a high near -2. East northeast wind 7 to 11 mph becoming north northwest in the afternoon.
Sunday Night
Mostly clear, with a low around -17. North northwest wind 7 to 9 mph becoming southwest after midnight.
Monday
Sunny, with a high near 16. South southwest wind 10 to 16 mph, with gusts as high as 25 mph.
Monday Night
Partly cloudy, with a low around 0. Northwest wind 10 to 14 mph.
Tuesday
Mostly sunny and cold, with a high near 9. Northwest wind 9 to 11 mph, with gusts as high as 20 mph.
Tuesday Night
A slight chance of snow after midnight. Partly cloudy, with a low around -3. Chance of precipitation is 20%.
Wednesday
Mostly sunny, with a high near 13.
Wednesday Night
Partly cloudy, with a low around -6.
Thursday
Mostly sunny and cold, with a high near 9.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Clark SDSimilar City Names
 44.88°N 97.75°W (Elev. 1808 ft)
Last Update:
1:37 pm CST Jan 23, 2026
Forecast Valid:
2pm CST Jan 23, 2026-6pm CST Jan 29, 2026
 
Forecast Discussion
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation