Heavy Rain in the Southeast; Wintry Mix from the Plains through the Ohio Valley

A storm system will bring a number impacts to the central and eastern US. Heavy rain and thunderstorms are expected in the Gulf Coast and Deep South. Further north, a wintry mix may produce a glaze of ice from the Ozarks/Mid-South east through the Ohio Valley. Accumulating snow is expected from the central Plains east into the Upper Ohio Valley/Lower Great Lakes. Read More >

Hazardous Weather Conditions

Current conditions at

Watertown, Watertown Municipal Airport (KATY)

Lat: 44.9°NLon: 97.15°WElev: 1745ft.

Partly Cloudy

16°F

-9°C

Humidity 80%
Wind Speed S 16 mph
Barometer 30.01 in (1020.2 mb)
Dewpoint 11°F (-12°C)
Visibility 10.00 mi
Wind Chill1°F (-17°C)
Last update 1 Dec 11:53 am CST
Extended Forecast for

4 Miles W Vienna SD

  • This Afternoon

    This Afternoon: Partly sunny, with a high near 18. South southwest wind 8 to 14 mph.

    High: 18 °F

    Partly Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 0. West wind 6 to 8 mph.

    Low: 0 °F

    Partly Cloudy

  • Tuesday

    Tuesday: A slight chance of snow after 5pm.  Mostly cloudy, with a high near 29. South southwest wind 6 to 13 mph, with gusts as high as 21 mph.  Chance of precipitation is 20%.

    High: 29 °F

    Partly Sunny
    then Slight
    Chance Snow

  • Tuesday Night

    Tuesday Night: A chance of snow, mainly before midnight.  Cloudy, with a low around 6. Southwest wind 8 to 16 mph becoming north after midnight. Winds could gust as high as 25 mph.  Chance of precipitation is 30%.

    Low: 6 °F

    Chance Snow

  • Wednesday

    Wednesday: Partly sunny, with a high near 13. North wind 9 to 16 mph, with gusts as high as 25 mph.

    High: 13 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around -12. Northwest wind 5 to 9 mph becoming south after midnight.

    Low: -12 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 21. South wind 10 to 15 mph, with gusts as high as 25 mph.

    High: 21 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 14. Southwest wind 8 to 13 mph.

    Low: 14 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly cloudy, with a high near 27. Southwest wind 8 to 11 mph becoming west northwest in the afternoon. Winds could gust as high as 20 mph.

    High: 27 °F

    Mostly Cloudy

Detailed Forecast

This Afternoon
Partly sunny, with a high near 18. South southwest wind 8 to 14 mph.
Tonight
Partly cloudy, with a low around 0. West wind 6 to 8 mph.
Tuesday
A slight chance of snow after 5pm. Mostly cloudy, with a high near 29. South southwest wind 6 to 13 mph, with gusts as high as 21 mph. Chance of precipitation is 20%.
Tuesday Night
A chance of snow, mainly before midnight. Cloudy, with a low around 6. Southwest wind 8 to 16 mph becoming north after midnight. Winds could gust as high as 25 mph. Chance of precipitation is 30%.
Wednesday
Partly sunny, with a high near 13. North wind 9 to 16 mph, with gusts as high as 25 mph.
Wednesday Night
Mostly clear, with a low around -12. Northwest wind 5 to 9 mph becoming south after midnight.
Thursday
Mostly sunny, with a high near 21. South wind 10 to 15 mph, with gusts as high as 25 mph.
Thursday Night
Mostly cloudy, with a low around 14. Southwest wind 8 to 13 mph.
Friday
Mostly cloudy, with a high near 27. Southwest wind 8 to 11 mph becoming west northwest in the afternoon. Winds could gust as high as 20 mph.
Friday Night
A slight chance of snow after midnight. Mostly cloudy, with a low around 12. Chance of precipitation is 20%.
Saturday
A slight chance of snow. Mostly cloudy, with a high near 22. Chance of precipitation is 20%.
Saturday Night
Mostly cloudy, with a low around -2.
Sunday
Mostly cloudy and cold, with a high near 8.
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles W Vienna SD
 44.69°N 97.59°W (Elev. 1759 ft)
11:36 am CST Dec 1, 2025
12pm CST Dec 1, 2025-6pm CST Dec 7, 2025
 
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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