Prolonged Atmospheric River in the Northwest; Snow in the North-Central US

A prolonged atmospheric river will bring heavy rainfall which may lead to widespread urban and river flooding, heavy mountain snow, along with gusty winds to the Pacific Northwest into the northern Rockies through much of the week. A clipper will bring a period of snow across the upper Midwest and the Great Lakes into Tuesday, before a stronger system bring more wintry impacts. Read More >

Current conditions at

Watertown, Watertown Municipal Airport (KATY)

Lat: 44.9°NLon: 97.15°WElev: 1745ft.

Mostly Cloudy

18°F

-8°C

Humidity 92%
Wind Speed S 3 mph
Barometer 29.68 in (1007.6 mb)
Dewpoint 16°F (-9°C)
Visibility 10.00 mi
Last update 9 Dec 4:53 am CST
Extended Forecast for

4 Miles W Vienna SD

Winter Weather Advisory December 9, 07:00am until December 9, 12:00pm
High Wind Warning December 9, 06:00pm until December 10, 06:00am
Click here for hazard details and duration
Winter Weather Advisory
High Wind Warning
  • Today

    Today: Rain or freezing rain before 2pm, then a chance of rain between 2pm and 5pm.  Patchy blowing snow between 10am and 11am. High near 39. Windy, with a south wind 9 to 14 mph becoming west northwest 22 to 32 mph. Winds could gust as high as 50 mph.  Chance of precipitation is 90%. Little or no ice accumulation expected.

    High: 39 °F

    Rain/Freezing
    Rain and
    Patchy
    Blowing Snow

  • Tonight

    Tonight: A chance of snow, mainly before 11pm.  Increasing clouds, with a low around 13. Windy, with a west northwest wind 31 to 36 mph decreasing to 25 to 30 mph after midnight. Winds could gust as high as 55 mph.  Chance of precipitation is 30%.

    Low: 13 °F

    Chance Snow
    and Windy

  • Wednesday

    Wednesday: Mostly cloudy, with a temperature falling to around 12 by 5pm. Blustery, with a northwest wind 19 to 24 mph decreasing to 9 to 14 mph in the afternoon. Winds could gust as high as 43 mph.

    High: 17 °F

    Mostly Cloudy
    and Blustery
    then Mostly
    Cloudy

  • Wednesday Night

    Wednesday Night: A chance of snow after midnight.  Cloudy, with a low around 8. North northwest wind 5 to 8 mph becoming southeast after midnight.  Chance of precipitation is 30%.

    Low: 8 °F

    Cloudy then
    Chance Snow

  • Thursday

    Thursday: A chance of snow.  Cloudy, with a high near 24. Southeast wind 8 to 11 mph becoming northwest in the afternoon. Winds could gust as high as 20 mph.  Chance of precipitation is 50%.

    High: 24 °F

    Chance Snow

  • Thursday Night

    Thursday Night: A chance of snow.  Cloudy, with a low around -2. Blustery, with a north northwest wind 10 to 20 mph, with gusts as high as 29 mph.  Chance of precipitation is 50%.

    Low: -2 °F

    Chance Snow
    and Blustery

  • Friday

    Friday: A slight chance of snow before noon.  Mostly cloudy and cold, with a high near 9. Blustery, with a northwest wind 14 to 20 mph, with gusts as high as 30 mph.  Chance of precipitation is 20%.

    High: 9 °F

    Slight Chance
    Snow and
    Blustery then
    Mostly Cloudy

  • Friday Night

    Friday Night: A chance of snow after midnight.  Cloudy, with a low around -8. North northwest wind 7 to 11 mph, with gusts as high as 20 mph.  Chance of precipitation is 40%.

    Low: -8 °F

    Cloudy then
    Chance Snow

  • Saturday

    Saturday: A chance of snow.  Mostly cloudy and cold, with a high near 1. North northwest wind 7 to 10 mph.  Chance of precipitation is 50%.

    High: 1 °F

    Chance Snow

Detailed Forecast

Today
Rain or freezing rain before 2pm, then a chance of rain between 2pm and 5pm. Patchy blowing snow between 10am and 11am. High near 39. Windy, with a south wind 9 to 14 mph becoming west northwest 22 to 32 mph. Winds could gust as high as 50 mph. Chance of precipitation is 90%. Little or no ice accumulation expected.
Tonight
A chance of snow, mainly before 11pm. Increasing clouds, with a low around 13. Windy, with a west northwest wind 31 to 36 mph decreasing to 25 to 30 mph after midnight. Winds could gust as high as 55 mph. Chance of precipitation is 30%.
Wednesday
Mostly cloudy, with a temperature falling to around 12 by 5pm. Blustery, with a northwest wind 19 to 24 mph decreasing to 9 to 14 mph in the afternoon. Winds could gust as high as 43 mph.
Wednesday Night
A chance of snow after midnight. Cloudy, with a low around 8. North northwest wind 5 to 8 mph becoming southeast after midnight. Chance of precipitation is 30%.
Thursday
A chance of snow. Cloudy, with a high near 24. Southeast wind 8 to 11 mph becoming northwest in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 50%.
Thursday Night
A chance of snow. Cloudy, with a low around -2. Blustery, with a north northwest wind 10 to 20 mph, with gusts as high as 29 mph. Chance of precipitation is 50%.
Friday
A slight chance of snow before noon. Mostly cloudy and cold, with a high near 9. Blustery, with a northwest wind 14 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 20%.
Friday Night
A chance of snow after midnight. Cloudy, with a low around -8. North northwest wind 7 to 11 mph, with gusts as high as 20 mph. Chance of precipitation is 40%.
Saturday
A chance of snow. Mostly cloudy and cold, with a high near 1. North northwest wind 7 to 10 mph. Chance of precipitation is 50%.
Saturday Night
Partly cloudy, with a low around -14.
Sunday
Mostly sunny, with a high near 13.
Sunday Night
Mostly cloudy, with a low around 4.
Monday
Mostly sunny, with a high near 20.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles W Vienna SD
 44.69°N 97.59°W (Elev. 1759 ft)
4:51 am CST Dec 9, 2025
5am CST Dec 9, 2025-6pm CST Dec 15, 2025
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database