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.

Overcast

30°F

-1°C

Humidity 88%
Wind Speed E 9 mph
Barometer 30.02 in (1018.8 mb)
Dewpoint 27°F (-3°C)
Visibility 9.00 mi
Wind Chill22°F (-6°C)
Last update 3 Apr 2:53 pm CDT
Extended Forecast for

4 Miles ESE Castlewood SD

Winter Weather Advisory April 3, 03:12pm until April 4, 07:00pm
Click here for hazard details and duration
Winter Weather Advisory
  •  
    Winter Weather Advisory April 3, 03:12pm until April 4, 07:00pm

    NOW until 7:00pm Sat

    Winter Weather Advisory

  • This Afternoon

    High: 31 °F

    Wintry Mix

  • Tonight

    Tonight: Snow and freezing rain, becoming all snow after 10pm. Low around 26. Northeast wind 7 to 10 mph becoming northwest after midnight. Chance of precipitation is 90%. New ice accumulation of less than a 0.1 of an inch possible. New snow accumulation of around an inch possible.

    Low: 26 °F

    Wintry Mix
    then Snow
    Likely

  • Saturday

    Saturday: Snow, mainly before 2pm. Patchy blowing snow after 9am. High near 34. Breezy, with a northwest wind 14 to 22 mph, with gusts as high as 33 mph. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.

    High: 34 °F

    Snow and
    Patchy
    Blowing Snow

  • Saturday Night

    Saturday Night: Patchy blowing snow before 9pm. Partly cloudy, with a low around 24. West northwest wind 9 to 18 mph, with gusts as high as 28 mph.

    Low: 24 °F

    Patchy
    Blowing Snow
    then Partly
    Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 41. West wind 9 to 17 mph, with gusts as high as 28 mph.

    High: 41 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 21. Northwest wind 9 to 15 mph, with gusts as high as 25 mph.

    Low: 21 °F

    Partly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 31. North wind 10 to 15 mph, with gusts as high as 23 mph.

    High: 31 °F

    Partly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 16. North northeast wind 7 to 13 mph becoming east southeast after midnight. Winds could gust as high as 21 mph.

    Low: 16 °F

    Mostly Cloudy

Detailed Forecast

This Afternoon
Snow and freezing rain, mainly after 4pm. High near 31. Northeast wind around 8 mph. Chance of precipitation is 80%. Total daytime ice accumulation of around a 0.1 of an inch possible. Total daytime snow accumulation of less than a half inch possible.
Tonight
Snow and freezing rain, becoming all snow after 10pm. Low around 26. Northeast wind 7 to 10 mph becoming northwest after midnight. Chance of precipitation is 90%. New ice accumulation of less than a 0.1 of an inch possible. New snow accumulation of around an inch possible.
Saturday
Snow, mainly before 2pm. Patchy blowing snow after 9am. High near 34. Breezy, with a northwest wind 14 to 22 mph, with gusts as high as 33 mph. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.
Saturday Night
Patchy blowing snow before 9pm. Partly cloudy, with a low around 24. West northwest wind 9 to 18 mph, with gusts as high as 28 mph.
Sunday
Mostly sunny, with a high near 41. West wind 9 to 17 mph, with gusts as high as 28 mph.
Sunday Night
Partly cloudy, with a low around 21. Northwest wind 9 to 15 mph, with gusts as high as 25 mph.
Monday
Partly sunny, with a high near 31. North wind 10 to 15 mph, with gusts as high as 23 mph.
Monday Night
Mostly cloudy, with a low around 16. North northeast wind 7 to 13 mph becoming east southeast after midnight. Winds could gust as high as 21 mph.
Tuesday
A slight chance of snow after 1pm. Mostly cloudy, with a high near 40. Breezy, with a south southeast wind 11 to 16 mph increasing to 18 to 23 mph in the afternoon. Winds could gust as high as 32 mph. Chance of precipitation is 20%.
Tuesday Night
Partly cloudy, with a low around 32. Breezy.
Wednesday
Mostly sunny, with a high near 58. Breezy.
Wednesday Night
A slight chance of rain and snow. Mostly cloudy, with a low around 27. Breezy. Chance of precipitation is 20%.
Thursday
A chance of rain and snow. Mostly cloudy, with a high near 42. Chance of precipitation is 30%.
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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:
2:31 pm CDT Apr 3, 2026
Forecast Valid:
3pm CDT Apr 3, 2026-6pm CDT Apr 9, 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