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

24°F

-4°C

Humidity 84%
Wind Speed NW 9 mph
Barometer 30.17 in (1024.0 mb)
Dewpoint 20°F (-7°C)
Visibility 10.00 mi
Wind Chill14°F (-10°C)
Last update 11 Mar 9:53 am CDT
Extended Forecast for

4 Miles ESE Castlewood SD

  • Today

    Today: A chance of snow, mainly after 4pm. Mostly sunny, with a high near 39. West wind 9 to 11 mph, with gusts as high as 20 mph. Chance of precipitation is 30%.

    High: 39 °F

    Mostly Sunny
    then Chance
    Snow

  • Tonight

    Tonight: Mostly clear, with a low around 22. West northwest wind 6 to 9 mph becoming south after midnight.

    Low: 22 °F

    Mostly Clear

  • Thursday

    Thursday: A chance of rain after 1pm. Increasing clouds, with a high near 49. Breezy, with a south wind 10 to 15 mph increasing to 18 to 23 mph in the afternoon. Winds could gust as high as 33 mph. Chance of precipitation is 50%.

    High: 49 °F

    Mostly Cloudy
    then Chance
    Rain and
    Breezy

  • Thursday Night

    Thursday Night: A chance of rain, mixing with snow after 10pm, then gradually ending. Mostly cloudy, with a low around 22. Windy, with a west northwest wind 24 to 33 mph, with gusts as high as 55 mph. Chance of precipitation is 30%.

    Low: 22 °F

    Chance
    Rain/Snow and
    Windy

  • Friday

    Friday: Mostly cloudy, with a high near 34. Breezy, with a northwest wind 16 to 21 mph decreasing to 10 to 15 mph in the afternoon. Winds could gust as high as 30 mph.

    High: 34 °F

    Mostly Cloudy
    and Breezy
    then Mostly
    Cloudy

  • Friday Night

    Friday Night: A chance of snow, mainly after 1am. Mostly cloudy, with a low around 22. North northeast wind 6 to 8 mph becoming southeast after midnight. Chance of precipitation is 50%.

    Low: 22 °F

    Slight Chance
    Snow then
    Chance Snow

  • Saturday

    Saturday: A chance of snow. Cloudy, with a high near 34. East southeast wind 8 to 15 mph, with gusts as high as 23 mph. Chance of precipitation is 50%.

    High: 34 °F

    Chance Snow

  • Saturday Night

    Saturday Night: Snow. Low around 16. Blustery, with an east wind 17 to 20 mph, with gusts as high as 29 mph. Chance of precipitation is 80%.

    Low: 16 °F

    Snow and
    Blustery

  • Sunday

    Sunday: Snow likely, mainly before 1pm. Mostly cloudy, with a high near 24. Blustery, with a north wind 21 to 28 mph, with gusts as high as 40 mph. Chance of precipitation is 60%.

    High: 24 °F

    Snow Likely
    and Blustery

Detailed Forecast

Today
A chance of snow, mainly after 4pm. Mostly sunny, with a high near 39. West wind 9 to 11 mph, with gusts as high as 20 mph. Chance of precipitation is 30%.
Tonight
Mostly clear, with a low around 22. West northwest wind 6 to 9 mph becoming south after midnight.
Thursday
A chance of rain after 1pm. Increasing clouds, with a high near 49. Breezy, with a south wind 10 to 15 mph increasing to 18 to 23 mph in the afternoon. Winds could gust as high as 33 mph. Chance of precipitation is 50%.
Thursday Night
A chance of rain, mixing with snow after 10pm, then gradually ending. Mostly cloudy, with a low around 22. Windy, with a west northwest wind 24 to 33 mph, with gusts as high as 55 mph. Chance of precipitation is 30%.
Friday
Mostly cloudy, with a high near 34. Breezy, with a northwest wind 16 to 21 mph decreasing to 10 to 15 mph in the afternoon. Winds could gust as high as 30 mph.
Friday Night
A chance of snow, mainly after 1am. Mostly cloudy, with a low around 22. North northeast wind 6 to 8 mph becoming southeast after midnight. Chance of precipitation is 50%.
Saturday
A chance of snow. Cloudy, with a high near 34. East southeast wind 8 to 15 mph, with gusts as high as 23 mph. Chance of precipitation is 50%.
Saturday Night
Snow. Low around 16. Blustery, with an east wind 17 to 20 mph, with gusts as high as 29 mph. Chance of precipitation is 80%.
Sunday
Snow likely, mainly before 1pm. Mostly cloudy, with a high near 24. Blustery, with a north wind 21 to 28 mph, with gusts as high as 40 mph. Chance of precipitation is 60%.
Sunday Night
Mostly cloudy, with a low around 3. Blustery.
Monday
Mostly sunny, with a high near 21.
Monday Night
A slight chance of snow. Mostly cloudy, with a low around 3. Chance of precipitation is 20%.
Tuesday
A slight chance of snow. Mostly cloudy, with a high near 30. Chance of precipitation is 20%.
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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:
10:37 am CDT Mar 11, 2026
Forecast Valid:
10am CDT Mar 11, 2026-6pm CDT Mar 17, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation