Prolonged Atmospheric River Will Impact the Northwest Early this Week

A weather system in the Pacific Northwest will produce rain throughout the day, before a potent atmospheric river produces a prolonged round of heavy rainfall, widespread urban and river flooding, and high elevation snow to the region Monday through Wednesday. Showers and thunderstorms may produce isolated damaging winds, a brief tornado, and locally heavy rainfall across parts of Florida today. Read More >

Current conditions at

Watertown, Watertown Municipal Airport (KATY)

Lat: 44.9°NLon: 97.15°WElev: 1745ft.

Light Snow

7°F

-14°C

Humidity 66%
Wind Speed SE 9 mph
Barometer 30.20 in (1027.3 mb)
Dewpoint -2°F (-19°C)
Visibility 7.00 mi
Wind Chill-6°F (-21°C)
Last update 7 Dec 4:53 pm CST
Extended Forecast for

4 Miles W Vienna SD

  • This Afternoon

    This Afternoon: A chance of snow.  Cloudy and cold, with a steady temperature around 6. Southeast wind around 13 mph.  Chance of precipitation is 50%.

    High: 6 °F

    Chance Snow

  • Tonight

    Tonight: Snow likely, mainly before 8pm.  Cloudy, with a temperature rising to around 13 by 5am. South southeast wind 9 to 14 mph.  Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.

    Low: 8 °F

    Snow Likely
    then Cloudy

  • Monday

    Monday: Mostly cloudy, with a high near 28. South wind 9 to 14 mph becoming west southwest in the afternoon. Winds could gust as high as 23 mph.

    High: 28 °F

    Mostly Cloudy

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 22. West wind 8 to 13 mph, with gusts as high as 21 mph.

    Low: 22 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: A chance of freezing rain before 9am, then rain likely.  Mostly cloudy, with a high near 39. Breezy, with a south southwest wind 9 to 14 mph becoming west 18 to 23 mph in the afternoon. Winds could gust as high as 38 mph.  Chance of precipitation is 60%. Little or no ice accumulation expected.

    High: 39 °F

    Chance
    Rain/Freezing
    Rain then
    Rain Likely
    and Breezy

  • Tuesday Night

    Tuesday Night: A slight chance of rain before 9pm, then a slight chance of snow between 9pm and midnight.  Mostly cloudy, with a low around 12. Windy, with a northwest wind 24 to 34 mph, with gusts as high as 49 mph.  Chance of precipitation is 20%.

    Low: 12 °F

    Windy. Slight
    Chance
    Rain/Snow
    then Mostly
    Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 16. Blustery, with a northwest wind 18 to 23 mph decreasing to 7 to 12 mph in the afternoon. Winds could gust as high as 36 mph.

    High: 16 °F

    Partly Sunny
    and Blustery
    then Partly
    Sunny

  • Wednesday Night

    Wednesday Night: A chance of snow, mainly after midnight.  Mostly cloudy, with a low around 5. East wind 6 to 11 mph.  Chance of precipitation is 50%.

    Low: 5 °F

    Slight Chance
    Snow then
    Chance Snow

  • Thursday

    Thursday: A chance of snow.  Mostly cloudy, with a high near 15. East northeast wind 11 to 14 mph becoming northwest in the afternoon. Winds could gust as high as 23 mph.  Chance of precipitation is 50%.

    High: 15 °F

    Chance Snow

Detailed Forecast

This Afternoon
A chance of snow. Cloudy and cold, with a steady temperature around 6. Southeast wind around 13 mph. Chance of precipitation is 50%.
Tonight
Snow likely, mainly before 8pm. Cloudy, with a temperature rising to around 13 by 5am. South southeast wind 9 to 14 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.
Monday
Mostly cloudy, with a high near 28. South wind 9 to 14 mph becoming west southwest in the afternoon. Winds could gust as high as 23 mph.
Monday Night
Mostly cloudy, with a low around 22. West wind 8 to 13 mph, with gusts as high as 21 mph.
Tuesday
A chance of freezing rain before 9am, then rain likely. Mostly cloudy, with a high near 39. Breezy, with a south southwest wind 9 to 14 mph becoming west 18 to 23 mph in the afternoon. Winds could gust as high as 38 mph. Chance of precipitation is 60%. Little or no ice accumulation expected.
Tuesday Night
A slight chance of rain before 9pm, then a slight chance of snow between 9pm and midnight. Mostly cloudy, with a low around 12. Windy, with a northwest wind 24 to 34 mph, with gusts as high as 49 mph. Chance of precipitation is 20%.
Wednesday
Partly sunny, with a high near 16. Blustery, with a northwest wind 18 to 23 mph decreasing to 7 to 12 mph in the afternoon. Winds could gust as high as 36 mph.
Wednesday Night
A chance of snow, mainly after midnight. Mostly cloudy, with a low around 5. East wind 6 to 11 mph. Chance of precipitation is 50%.
Thursday
A chance of snow. Mostly cloudy, with a high near 15. East northeast wind 11 to 14 mph becoming northwest in the afternoon. Winds could gust as high as 23 mph. Chance of precipitation is 50%.
Thursday Night
A chance of snow, mainly before midnight. Mostly cloudy, with a low around -8. Chance of precipitation is 30%.
Friday
Partly sunny and cold, with a high near 0.
Friday Night
Mostly cloudy, with a low around -13.
Saturday
A slight chance of snow. Partly sunny and cold, with a high near 2. Chance of precipitation is 20%.
Saturday Night
A slight chance of snow. Mostly cloudy, with a low around -8. Chance of precipitation is 20%.
Sunday
Partly sunny, with a high near 12.
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles W Vienna SD
 44.69°N 97.59°W (Elev. 1759 ft)
4:37 pm CST Dec 7, 2025
5pm CST Dec 7, 2025-6pm CST Dec 14, 2025
 
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Additional Resources

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