High-Impact and Far-Reaching Winter Storm Continues; Cold Expands and Persists

A major winter storm will shift its impacts into the Northeast U.S. with heavy snow through tonight while over the Mid-Atlantic, sleet and freezing rain will diminish. Extremely cold air behind the storm will prolong dangerous travel and infrastructure impacts. Sub-zero low temperatures are expected nearly every morning from the Northern Plains through the Ohio Valley and into the Northeast. Read More >

Current conditions at

Watertown, Watertown Municipal Airport (KATY)

Lat: 44.9°NLon: 97.15°WElev: 1745ft.

Fair

-19°F

-28°C

Humidity 73%
Wind Speed SW 8 mph
Barometer 30.28 in (1031.2 mb)
Dewpoint -25°F (-32°C)
Visibility 10.00 mi
Wind Chill-37°F (-38°C)
Last update 26 Jan 1:53 am CST
Extended Forecast for

6 Miles WSW Watertown SD

Cold Weather Advisory January 26, 02:08am until January 26, 09:00am
Wind Advisory January 26, 09:00am until January 26, 03:00pm
Click here for hazard details and duration
Cold Weather Advisory
Wind Advisory
  •  
    Cold Weather Advisory January 26, 02:08am until January 26, 09:00am

    NOW until 9:00am Mon

    Cold Weather Advisory

  • Overnight

    Low: -19 °F

    Mostly Clear

  • Monday

    Monday: Mostly sunny, with a high near 17. Wind chill values as low as -31. South southwest wind 10 to 18 mph becoming west in the afternoon. Winds could gust as high as 32 mph.

    High: 17 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around -2. Wind chill values as low as -18. Northwest wind 14 to 16 mph, with gusts as high as 31 mph.

    Low: -2 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Sunny and cold, with a high near 7. Wind chill values as low as -20. Northwest wind 9 to 15 mph, with gusts as high as 28 mph.

    High: 7 °F

    Cold

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around -3. West wind 6 to 9 mph.

    Low: -3 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 11. Northwest wind 6 to 9 mph.

    High: 11 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around -5. North northeast wind around 6 mph.

    Low: -5 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly sunny and cold, with a high near 9. Northeast wind 5 to 8 mph.

    High: 9 °F

    Cold

Detailed Forecast

Overnight
Mostly clear, with a low around -19. Wind chill values as low as -35. Southwest wind 6 to 10 mph.
Monday
Mostly sunny, with a high near 17. Wind chill values as low as -31. South southwest wind 10 to 18 mph becoming west in the afternoon. Winds could gust as high as 32 mph.
Monday Night
Partly cloudy, with a low around -2. Wind chill values as low as -18. Northwest wind 14 to 16 mph, with gusts as high as 31 mph.
Tuesday
Sunny and cold, with a high near 7. Wind chill values as low as -20. Northwest wind 9 to 15 mph, with gusts as high as 28 mph.
Tuesday Night
Partly cloudy, with a low around -3. West wind 6 to 9 mph.
Wednesday
Mostly sunny, with a high near 11. Northwest wind 6 to 9 mph.
Wednesday Night
Mostly cloudy, with a low around -5. North northeast wind around 6 mph.
Thursday
Mostly sunny and cold, with a high near 9. Northeast wind 5 to 8 mph.
Thursday Night
Partly cloudy, with a low around -11. East northeast wind around 7 mph.
Friday
Sunny and cold, with a high near 10.
Friday Night
Partly cloudy, with a low around -2.
Saturday
A chance of snow. Partly sunny, with a high near 24. Chance of precipitation is 30%.
Saturday Night
A slight chance of snow. Mostly cloudy, with a low around 15. Chance of precipitation is 20%.
Sunday
Partly sunny, with a high near 29.
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ABOUT THIS FORECAST

 
Point Forecast:
6 Miles WSW Watertown SD
 44.88°N 97.26°W (Elev. 1749 ft)
1:36 am CST Jan 26, 2026
2am CST Jan 26, 2026-6pm CST Feb 1, 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