National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Watertown, Watertown Municipal Airport (KATY)

Lat: 44.9°NLon: 97.15°WElev: 1745ft.

Fair

42°F

6°C

Humidity 55%
Wind Speed NE 14 mph
Barometer 29.77 in (1009.2 mb)
Dewpoint 27°F (-3°C)
Visibility 10.00 mi
Wind Chill35°F (2°C)
Last update 9 Mar 5:53 pm CDT
Extended Forecast for

4 Miles WSW Vienna SD

  • Tonight

    Tonight: A slight chance of snow between 11pm and midnight. Increasing clouds, with a low around 27. Blustery, with a northeast wind 13 to 22 mph, with gusts as high as 30 mph. Chance of precipitation is 20%.

    Low: 27 °F

    Blustery.
    Slight Chance
    Snow then
    Mostly Cloudy

  • Tuesday

    Tuesday: A slight chance of snow after 5pm. Mostly cloudy, with a high near 41. Northeast wind 10 to 14 mph. Chance of precipitation is 10%.

    High: 41 °F

    Mostly Cloudy
    then Slight
    Chance Snow

  • Tuesday Night

    Tuesday Night: Snow, mainly between 7pm and 1am. Low around 24. North northeast wind 10 to 14 mph. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.

    Low: 24 °F

    Snow

  • Wednesday

    Wednesday: A slight chance of rain and snow after 1pm. Mostly cloudy, then gradually becoming sunny, with a high near 40. Northwest wind 9 to 16 mph. Chance of precipitation is 20%.

    High: 40 °F

    Partly Sunny
    then Slight
    Chance
    Rain/Snow

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 25. West northwest wind 7 to 11 mph becoming south after midnight.

    Low: 25 °F

    Partly Cloudy

  • Thursday

    Thursday: A chance of rain and snow after 1pm. Mostly cloudy, with a high near 49. South wind 14 to 18 mph. Chance of precipitation is 40%.

    High: 49 °F

    Mostly Cloudy
    then Chance
    Rain/Snow

  • Thursday Night

    Thursday Night: A chance of rain and snow before 1am. Mostly cloudy, with a low around 24. Blustery, with a west northwest wind 16 to 21 mph. Chance of precipitation is 30%.

    Low: 24 °F

    Chance
    Rain/Snow and
    Blustery

  • Friday

    Friday: A slight chance of snow. Mostly cloudy, with a high near 38. North northwest wind 10 to 13 mph becoming northeast in the afternoon. Chance of precipitation is 20%.

    High: 38 °F

    Slight Chance
    Snow

  • Friday Night

    Friday Night: A chance of snow. Cloudy, with a low around 26. East wind around 11 mph. Chance of precipitation is 40%.

    Low: 26 °F

    Chance Snow

Detailed Forecast

Tonight
A slight chance of snow between 11pm and midnight. Increasing clouds, with a low around 27. Blustery, with a northeast wind 13 to 22 mph, with gusts as high as 30 mph. Chance of precipitation is 20%.
Tuesday
A slight chance of snow after 5pm. Mostly cloudy, with a high near 41. Northeast wind 10 to 14 mph. Chance of precipitation is 10%.
Tuesday Night
Snow, mainly between 7pm and 1am. Low around 24. North northeast wind 10 to 14 mph. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.
Wednesday
A slight chance of rain and snow after 1pm. Mostly cloudy, then gradually becoming sunny, with a high near 40. Northwest wind 9 to 16 mph. Chance of precipitation is 20%.
Wednesday Night
Partly cloudy, with a low around 25. West northwest wind 7 to 11 mph becoming south after midnight.
Thursday
A chance of rain and snow after 1pm. Mostly cloudy, with a high near 49. South wind 14 to 18 mph. Chance of precipitation is 40%.
Thursday Night
A chance of rain and snow before 1am. Mostly cloudy, with a low around 24. Blustery, with a west northwest wind 16 to 21 mph. Chance of precipitation is 30%.
Friday
A slight chance of snow. Mostly cloudy, with a high near 38. North northwest wind 10 to 13 mph becoming northeast in the afternoon. Chance of precipitation is 20%.
Friday Night
A chance of snow. Cloudy, with a low around 26. East wind around 11 mph. Chance of precipitation is 40%.
Saturday
A chance of snow. Mostly cloudy, with a high near 38. Chance of precipitation is 50%.
Saturday Night
Snow. Low around 14. Blustery. Chance of precipitation is 80%.
Sunday
A chance of snow. Mostly cloudy, with a high near 23. Blustery. Chance of precipitation is 40%.
Sunday Night
Partly cloudy, with a low around 7.
Monday
A slight chance of snow. Partly sunny, with a high near 26. Chance of precipitation is 20%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles WSW Vienna SD
 44.69°N 97.56°W (Elev. 1781 ft)
Last Update:
6:36 pm CDT Mar 9, 2026
Forecast Valid:
6pm CDT Mar 9, 2026-6pm CDT Mar 16, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation