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

Tracking Winter Weather and Frigid Temperatures Through This Weekend

A clipper storm will move across the Great Lakes through this weekend with periods of light snow, gusty winds, and lake effect snow bands which could make for hazardous travel at times. A frigid airmass will spread eastward behind this storm into the Midwest and Eastern U.S. through the weekend. Read More >

Hazardous Weather Conditions

Current conditions at

Watertown, Watertown Municipal Airport (KATY)

Lat: 44.9°NLon: 97.15°WElev: 1745ft.

Overcast with Haze and Breezy

-2°F

-19°C

Humidity 72%
Wind Speed NW 25 G 35 mph
Barometer 30.09 in (1023.6 mb)
Dewpoint -9°F (-23°C)
Visibility 4.00 mi
Wind Chill-27°F (-33°C)
Last update 17 Jan 5:53 am CST
Extended Forecast for

Watertown SD

Wind Advisory January 18, 09:00am until January 18, 06:00pm
Cold Weather Advisory January 17, 06:02am until January 17, 12:00pm
Click here for hazard details and duration
Wind Advisory
Cold Weather Advisory
  •  
    Cold Weather Advisory January 17, 06:02am until January 17, 12:00pm

    NOW until 12:00pm Sat

    Cold Weather Advisory

  • Today

    High: 4 °F

    Slight Chance
    Snow and
    Patchy
    Blowing Snow

  • Tonight

    Tonight: A chance of snow before 3am, then a chance of flurries between 3am and 4am. Mostly cloudy, with a temperature rising to around 10 by 5am. West northwest wind 9 to 14 mph becoming south southwest after midnight. Winds could gust as high as 26 mph. Chance of precipitation is 30%.

    Low: 1 °F⇑

    Mostly Cloudy
    then Chance
    Snow

  • Sunday

    Sunday: A chance of snow before noon, then a chance of flurries after noon. Patchy blowing snow after 8am. Mostly cloudy, with a temperature rising to near 17 by 9am, then falling to around 6 during the remainder of the day. Windy, with a west wind 16 to 21 mph becoming north northwest 25 to 30 mph in the morning. Winds could gust as high as 47 mph. Chance of precipitation is 30%.

    High: 17 °F⇓

    Chance Snow
    and Patchy
    Blowing Snow

  • Sunday Night

    Sunday Night: Patchy blowing snow before 11pm. Mostly cloudy, with a low around -7. Wind chill values as low as -26. Blustery, with a northwest wind 14 to 24 mph, with gusts as high as 39 mph.

    Low: -7 °F

    Patchy
    Blowing Snow
    and Blustery
    then Mostly
    Cloudy

  • M.L.King Day

    M.L.King Day: Mostly sunny and cold, with a high near 8. West northwest wind 13 to 17 mph, with gusts as high as 26 mph.

    High: 8 °F

    Cold

  • Monday Night

    Monday Night: Partly cloudy, with a low around -4. West wind 7 to 10 mph.

    Low: -4 °F

    Partly Cloudy

  • Tuesday

    Tuesday: A slight chance of snow after noon. Partly sunny, with a high near 22. South southwest wind 7 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.

    High: 22 °F

    Partly Sunny
    then Slight
    Chance Snow

  • Tuesday Night

    Tuesday Night: A slight chance of snow before midnight. Mostly cloudy, with a low around 8. Northwest wind around 11 mph, with gusts as high as 21 mph. Chance of precipitation is 20%.

    Low: 8 °F

    Slight Chance
    Snow then
    Mostly Cloudy

Detailed Forecast

Today
A chance of flurries with a slight chance of snow before 8am, then a chance of flurries between 8am and 9am. Patchy blowing snow before 1pm. Partly sunny and cold, with a high near 4. Wind chill values as low as -26. Blustery, with a north northwest wind 13 to 21 mph, with gusts as high as 44 mph. Chance of precipitation is 20%.
Tonight
A chance of snow before 3am, then a chance of flurries between 3am and 4am. Mostly cloudy, with a temperature rising to around 10 by 5am. West northwest wind 9 to 14 mph becoming south southwest after midnight. Winds could gust as high as 26 mph. Chance of precipitation is 30%.
Sunday
A chance of snow before noon, then a chance of flurries after noon. Patchy blowing snow after 8am. Mostly cloudy, with a temperature rising to near 17 by 9am, then falling to around 6 during the remainder of the day. Windy, with a west wind 16 to 21 mph becoming north northwest 25 to 30 mph in the morning. Winds could gust as high as 47 mph. Chance of precipitation is 30%.
Sunday Night
Patchy blowing snow before 11pm. Mostly cloudy, with a low around -7. Wind chill values as low as -26. Blustery, with a northwest wind 14 to 24 mph, with gusts as high as 39 mph.
M.L.King Day
Mostly sunny and cold, with a high near 8. West northwest wind 13 to 17 mph, with gusts as high as 26 mph.
Monday Night
Partly cloudy, with a low around -4. West wind 7 to 10 mph.
Tuesday
A slight chance of snow after noon. Partly sunny, with a high near 22. South southwest wind 7 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.
Tuesday Night
A slight chance of snow before midnight. Mostly cloudy, with a low around 8. Northwest wind around 11 mph, with gusts as high as 21 mph. Chance of precipitation is 20%.
Wednesday
Partly sunny, with a high near 18. West northwest wind 11 to 16 mph, with gusts as high as 28 mph.
Wednesday Night
Mostly cloudy, with a low around 1.
Thursday
Partly sunny, with a high near 16.
Thursday Night
Mostly cloudy, with a low around -3.
Friday
Partly sunny and cold, with a high near 7.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Watertown SD
 44.91°N 97.14°W (Elev. 1736 ft)
Last Update:
5:46 am CST Jan 17, 2026
Forecast Valid:
6am CST Jan 17, 2026-6pm CST Jan 23, 2026
 
Forecast Discussion
 
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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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation