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

Hazardous Weather Conditions

Current conditions at

Watertown, Watertown Municipal Airport (KATY)

Lat: 44.9°NLon: 97.15°WElev: 1745ft.

Blowing Snow and Windy

10°F

-12°C

Humidity 69%
Wind Speed N 35 G 49 mph
Barometer 30.22 in (1026.6 mb)
Dewpoint 2°F (-17°C)
Visibility 1.50 mi
Wind Chill-14°F (-26°C)
Last update 15 Mar 5:53 pm CDT
Extended Forecast for

4 Miles ESE Castlewood SD

Winter Weather Advisory until March 16, 01:00am
Click here for hazard details and duration
Winter Weather Advisory
  •  
    Winter Weather Advisory until March 16, 01:00am

    NOW until 1:00am Mon

    Winter Weather Advisory

  • This Afternoon

    High: 13 °F

    Areas Blowing
    Snow and
    Windy

  • Tonight

    Tonight: Areas of blowing snow. Mostly cloudy, then gradually becoming mostly clear, with a low around -5. Wind chill values as low as -26. Blustery, with a north northwest wind 21 to 29 mph, with gusts as high as 45 mph.

    Low: -5 °F

    Areas Blowing
    Snow and
    Blustery

  • Monday

    Monday: Sunny and cold, with a high near 9. Wind chill values as low as -27. North northwest wind 15 to 18 mph, with gusts as high as 29 mph.

    High: 9 °F

    Cold

  • Monday Night

    Monday Night: Partly cloudy, with a low around -5. Northwest wind 5 to 10 mph becoming light and variable after midnight.

    Low: -5 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Snow, mainly after 1pm. High near 27. Breezy, with a south wind 6 to 11 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 29 mph. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.

    High: 27 °F

    Chance Snow
    then Snow and
    Breezy

  • Tuesday Night

    Tuesday Night: A slight chance of snow before 1am. Mostly cloudy, with a low around 21. South southwest wind 9 to 14 mph, with gusts as high as 24 mph. Chance of precipitation is 20%.

    Low: 21 °F

    Slight Chance
    Snow

  • Wednesday

    Wednesday: Partly sunny, with a high near 42. West wind 9 to 11 mph, with gusts as high as 20 mph.

    High: 42 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 32. West northwest wind 7 to 10 mph.

    Low: 32 °F

    Partly Cloudy

Detailed Forecast

This Afternoon
Areas of blowing snow. Mostly cloudy, with a steady temperature around 13. Windy, with a north northwest wind around 31 mph, with gusts as high as 47 mph.
Tonight
Areas of blowing snow. Mostly cloudy, then gradually becoming mostly clear, with a low around -5. Wind chill values as low as -26. Blustery, with a north northwest wind 21 to 29 mph, with gusts as high as 45 mph.
Monday
Sunny and cold, with a high near 9. Wind chill values as low as -27. North northwest wind 15 to 18 mph, with gusts as high as 29 mph.
Monday Night
Partly cloudy, with a low around -5. Northwest wind 5 to 10 mph becoming light and variable after midnight.
Tuesday
Snow, mainly after 1pm. High near 27. Breezy, with a south wind 6 to 11 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 29 mph. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.
Tuesday Night
A slight chance of snow before 1am. Mostly cloudy, with a low around 21. South southwest wind 9 to 14 mph, with gusts as high as 24 mph. Chance of precipitation is 20%.
Wednesday
Partly sunny, with a high near 42. West wind 9 to 11 mph, with gusts as high as 20 mph.
Wednesday Night
Partly cloudy, with a low around 32. West northwest wind 7 to 10 mph.
Thursday
Mostly sunny, with a high near 52. Northwest wind 6 to 13 mph becoming southwest in the afternoon.
Thursday Night
Partly cloudy, with a low around 39.
Friday
Partly sunny, with a high near 63. Breezy.
Friday Night
Partly cloudy, with a low around 36.
Saturday
Mostly sunny, with a high near 58.
Saturday Night
Mostly cloudy, with a low around 32.
Sunday
Partly sunny, with a high near 49.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles ESE Castlewood SD
 44.72°N 96.96°W (Elev. 1749 ft)
Last Update:
5:36 pm CDT Mar 15, 2026
Forecast Valid:
5pm CDT Mar 15, 2026-6pm CDT Mar 22, 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