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.

Fair and Breezy

62°F

17°C

Humidity 21%
Wind Speed SW 21 G 30 mph
Barometer 29.94 in (1014.7 mb)
Dewpoint 21°F (-6°C)
Visibility 10.00 mi
Last update 28 Mar 5:53 pm CDT
Extended Forecast for

4 Miles W Castlewood SD

Red Flag Warning March 28, 06:02pm until March 28, 09:00pm
Click here for hazard details and duration
...
  •  
    Red Flag Warning March 28, 06:02pm until March 28, 09:00pm

    NOW until 9:00pm Sat

    Red Flag Warning

  • Tonight

    Low: 33 °F

    Mostly Cloudy
    and Breezy
    then Mostly
    Cloudy

  • Sunday

    Sunday: Patchy blowing dust between 11am and noon. Mostly cloudy through mid morning, then gradual clearing, with a high near 71. Southeast wind 5 to 7 mph becoming west in the afternoon.

    High: 71 °F

    Patchy
    Blowing Dust
    then Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 39. Northwest wind 5 to 7 mph becoming southeast in the evening.

    Low: 39 °F

    Mostly Clear

  • Monday

    Monday: Mostly sunny, with a high near 69. East wind 11 to 14 mph becoming north in the afternoon.

    High: 69 °F

    Mostly Sunny

  • Monday Night

    Monday Night: A slight chance of rain after 1am. Mostly cloudy, with a low around 33. Breezy, with a northeast wind 10 to 15 mph increasing to 17 to 22 mph after midnight. Winds could gust as high as 32 mph. Chance of precipitation is 20%.

    Low: 33 °F

    Mostly Cloudy
    then Slight
    Chance Rain
    and Breezy

  • Tuesday

    Tuesday: Partly sunny, with a high near 44. Breezy, with a northwest wind around 22 mph, with gusts as high as 33 mph.

    High: 44 °F

    Partly Sunny
    and Breezy

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 18. Blustery, with a north northeast wind 15 to 20 mph decreasing to 8 to 13 mph after midnight. Winds could gust as high as 28 mph.

    Low: 18 °F

    Partly Cloudy
    and Blustery
    then Partly
    Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 45. East southeast wind 8 to 15 mph, with gusts as high as 23 mph.

    High: 45 °F

    Mostly Sunny

Detailed Forecast

Tonight
Mostly cloudy, with a low around 33. Breezy, with a south southeast wind 16 to 21 mph decreasing to 7 to 12 mph after midnight. Winds could gust as high as 31 mph.
Sunday
Patchy blowing dust between 11am and noon. Mostly cloudy through mid morning, then gradual clearing, with a high near 71. Southeast wind 5 to 7 mph becoming west in the afternoon.
Sunday Night
Mostly clear, with a low around 39. Northwest wind 5 to 7 mph becoming southeast in the evening.
Monday
Mostly sunny, with a high near 69. East wind 11 to 14 mph becoming north in the afternoon.
Monday Night
A slight chance of rain after 1am. Mostly cloudy, with a low around 33. Breezy, with a northeast wind 10 to 15 mph increasing to 17 to 22 mph after midnight. Winds could gust as high as 32 mph. Chance of precipitation is 20%.
Tuesday
Partly sunny, with a high near 44. Breezy, with a northwest wind around 22 mph, with gusts as high as 33 mph.
Tuesday Night
Partly cloudy, with a low around 18. Blustery, with a north northeast wind 15 to 20 mph decreasing to 8 to 13 mph after midnight. Winds could gust as high as 28 mph.
Wednesday
Mostly sunny, with a high near 45. East southeast wind 8 to 15 mph, with gusts as high as 23 mph.
Wednesday Night
A slight chance of snow after 1am. Partly cloudy, with a low around 29. Southeast wind 16 to 18 mph, with gusts as high as 29 mph. Chance of precipitation is 20%.
Thursday
A chance of snow before 1pm, then a chance of rain and snow. Partly sunny, with a high near 48. Breezy. Chance of precipitation is 30%.
Thursday Night
A chance of rain and snow. Mostly cloudy, with a low around 32. Breezy. Chance of precipitation is 40%.
Friday
A chance of rain. Mostly cloudy, with a high near 46. Breezy. Chance of precipitation is 50%.
Friday Night
A chance of rain and snow. Mostly cloudy, with a low around 30. Blustery. Chance of precipitation is 50%.
Saturday
A chance of rain and snow. Mostly cloudy, with a high near 43. Breezy. Chance of precipitation is 40%.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles W Castlewood SD
 44.74°N 97.11°W (Elev. 1762 ft)
Last Update:
5:56 pm CDT Mar 28, 2026
Forecast Valid:
6pm CDT Mar 28, 2026-6pm CDT Apr 4, 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