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.

A Few Clouds

26°F

-3°C

Humidity 60%
Wind Speed SE 6 mph
Barometer 30.04 in (1019.9 mb)
Dewpoint 14°F (-10°C)
Visibility 10.00 mi
Wind Chill19°F (-7°C)
Last update 13 Mar 10:53 pm CDT
Extended Forecast for

6 Miles ENE Castlewood SD

Blizzard Warning March 15, 03:00am until March 15, 07:00pm
Winter Storm Warning March 14, 07:00pm until March 15, 03:00am
Click here for hazard details and duration
Blizzard Warning
Winter Storm Warning

  • Tonight

    Tonight: A chance of snow, mainly after 4am. Mostly cloudy, with a low around 22. Southeast wind around 7 mph. Chance of precipitation is 30%.

    Low: 22 °F

    Chance Snow

  • Saturday

    Saturday: Snow likely before 2pm, then a chance of snow after 3pm. Patchy blowing snow after 2pm. Cloudy, with a high near 32. East southeast wind 7 to 12 mph increasing to 13 to 18 mph in the afternoon. Winds could gust as high as 28 mph. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.

    High: 32 °F

    Snow Likely
    then Chance
    Snow and
    Patchy
    Blowing Snow

  • Saturday Night

    Saturday Night: Snow. The snow could be heavy at times. Widespread blowing snow, mainly after midnight. Low around 16. Blustery, with an east wind 18 to 28 mph, with gusts as high as 40 mph. Chance of precipitation is 100%. New snow accumulation of 7 to 11 inches possible.

    Low: 16 °F

    Heavy Snow
    and Blowing
    Snow

  • Sunday

    Sunday: Snow, mainly before 1pm. Widespread blowing snow, mainly before 1pm. High near 22. Windy, with a north wind 32 to 36 mph, with gusts as high as 49 mph. Chance of precipitation is 80%. New snow accumulation of 3 to 5 inches possible.

    High: 22 °F

    Snow and
    Blowing Snow

  • Sunday Night

    Sunday Night: Areas of blowing snow before 4am. Partly cloudy, with a low around -4. Blustery, with a north northwest wind 24 to 29 mph decreasing to 18 to 23 mph after midnight. Winds could gust as high as 45 mph.

    Low: -4 °F

    Areas Blowing
    Snow and
    Blustery

  • Monday

    Monday: Sunny and cold, with a high near 8. North northwest wind around 16 mph, with gusts as high as 25 mph.

    High: 8 °F

    Cold

  • Monday Night

    Monday Night: Partly cloudy, with a low around -8. Northwest wind 6 to 11 mph becoming south southwest after midnight.

    Low: -8 °F

    Partly Cloudy

  • Tuesday

    Tuesday: A chance of snow after 1pm. Partly sunny, with a high near 30. Breezy, with a south wind 10 to 20 mph, with gusts as high as 29 mph. Chance of precipitation is 50%.

    High: 30 °F

    Partly Sunny
    then Chance
    Snow and
    Breezy

  • Tuesday Night

    Tuesday Night: A slight chance of rain, snow, and freezing rain before 1am. Mostly cloudy, with a low around 22. South wind 11 to 17 mph becoming west after midnight. Winds could gust as high as 25 mph. Chance of precipitation is 20%.

    Low: 22 °F

    Slight Chance
    Wintry Mix

Detailed Forecast

Tonight
A chance of snow, mainly after 4am. Mostly cloudy, with a low around 22. Southeast wind around 7 mph. Chance of precipitation is 30%.
Saturday
Snow likely before 2pm, then a chance of snow after 3pm. Patchy blowing snow after 2pm. Cloudy, with a high near 32. East southeast wind 7 to 12 mph increasing to 13 to 18 mph in the afternoon. Winds could gust as high as 28 mph. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.
Saturday Night
Snow. The snow could be heavy at times. Widespread blowing snow, mainly after midnight. Low around 16. Blustery, with an east wind 18 to 28 mph, with gusts as high as 40 mph. Chance of precipitation is 100%. New snow accumulation of 7 to 11 inches possible.
Sunday
Snow, mainly before 1pm. Widespread blowing snow, mainly before 1pm. High near 22. Windy, with a north wind 32 to 36 mph, with gusts as high as 49 mph. Chance of precipitation is 80%. New snow accumulation of 3 to 5 inches possible.
Sunday Night
Areas of blowing snow before 4am. Partly cloudy, with a low around -4. Blustery, with a north northwest wind 24 to 29 mph decreasing to 18 to 23 mph after midnight. Winds could gust as high as 45 mph.
Monday
Sunny and cold, with a high near 8. North northwest wind around 16 mph, with gusts as high as 25 mph.
Monday Night
Partly cloudy, with a low around -8. Northwest wind 6 to 11 mph becoming south southwest after midnight.
Tuesday
A chance of snow after 1pm. Partly sunny, with a high near 30. Breezy, with a south wind 10 to 20 mph, with gusts as high as 29 mph. Chance of precipitation is 50%.
Tuesday Night
A slight chance of rain, snow, and freezing rain before 1am. Mostly cloudy, with a low around 22. South wind 11 to 17 mph becoming west after midnight. Winds could gust as high as 25 mph. Chance of precipitation is 20%.
Wednesday
Mostly sunny, with a high near 42.
Wednesday Night
Partly cloudy, with a low around 31.
Thursday
Mostly sunny, with a high near 47.
Thursday Night
Partly cloudy, with a low around 32.
Friday
Mostly sunny, with a high near 54.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
6 Miles ENE Castlewood SD
 44.74°N 96.9°W (Elev. 1850 ft)
Last Update:
10:36 pm CDT Mar 13, 2026
Forecast Valid:
11pm CDT Mar 13, 2026-6pm CDT Mar 20, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation