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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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles ESE Castlewood SD
 44.72°N 96.96°W (Elev. 1749 ft)
2:31 pm CDT Apr 3, 2026
3pm CDT Apr 3, 2026-6pm CDT Apr 9, 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