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

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 >

Hazardous Weather Conditions

Current conditions at

Watertown, Watertown Municipal Airport (KATY)

Lat: 44.9°NLon: 97.15°WElev: 1745ft.

Fair

18°F

-8°C

Humidity 96%
Wind Speed Calm
Barometer 29.73 in (1009.6 mb)
Dewpoint 17°F (-8°C)
Visibility 10.00 mi
Last update 9 Dec 1:53 am CST
Extended Forecast for

Lake Norden SD

Winter Weather Advisory December 9, 06:00am 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

  • Overnight

    Overnight: Mostly cloudy, with a low around 21. Southwest wind 6 to 9 mph.

    Low: 21 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: A chance of rain or freezing rain before noon, then rain likely. Mostly cloudy, with a high near 39. Breezy, with a south southwest wind 6 to 11 mph becoming west 19 to 29 mph. Winds could gust as high as 50 mph. Chance of precipitation is 70%. Little or no ice accumulation expected.

    High: 39 °F

    Chance
    Rain/Freezing
    Rain then
    Rain Likely
    and Breezy

  • Tuesday Night

    Tuesday Night: A chance of rain before 8pm, then a slight chance of snow after 10pm. Mostly cloudy, with a low around 13. Windy, with a west northwest wind 23 to 33 mph, with gusts as high as 55 mph. Chance of precipitation is 30%.

    Low: 13 °F

    Windy. Chance
    Rain/Snow
    then Slight
    Chance Snow

  • Wednesday

    Wednesday: Mostly cloudy, with a high near 18. Northwest wind 13 to 18 mph decreasing to 7 to 12 mph in the afternoon. Winds could gust as high as 31 mph.

    High: 18 °F

    Mostly Cloudy

  • Wednesday Night

    Wednesday Night: A chance of snow after midnight. Cloudy, with a low around 7. North northwest wind 5 to 7 mph becoming east southeast after midnight. Chance of precipitation is 30%.

    Low: 7 °F

    Mostly Cloudy
    then Chance
    Snow

  • Thursday

    Thursday: A chance of snow. Mostly cloudy, with a high near 19. East southeast wind 8 to 13 mph becoming west northwest in the afternoon. Winds could gust as high as 21 mph. Chance of precipitation is 40%.

    High: 19 °F

    Chance Snow

  • Thursday Night

    Thursday Night: A chance of snow. Mostly cloudy, with a low around -3. North northwest wind 11 to 16 mph, with gusts as high as 25 mph. Chance of precipitation is 40%.

    Low: -3 °F

    Chance Snow

  • Friday

    Friday: Mostly cloudy and cold, with a high near 8. Northwest wind 13 to 17 mph, with gusts as high as 28 mph.

    High: 8 °F

    Cold

  • Friday Night

    Friday Night: A slight chance of snow after midnight. Mostly cloudy, with a low around -10. Northwest wind 6 to 11 mph, with gusts as high as 21 mph. Chance of precipitation is 20%.

    Low: -10 °F

    Mostly Cloudy
    then Slight
    Chance Snow

Detailed Forecast

Overnight
Mostly cloudy, with a low around 21. Southwest wind 6 to 9 mph.
Tuesday
A chance of rain or freezing rain before noon, then rain likely. Mostly cloudy, with a high near 39. Breezy, with a south southwest wind 6 to 11 mph becoming west 19 to 29 mph. Winds could gust as high as 50 mph. Chance of precipitation is 70%. Little or no ice accumulation expected.
Tuesday Night
A chance of rain before 8pm, then a slight chance of snow after 10pm. Mostly cloudy, with a low around 13. Windy, with a west northwest wind 23 to 33 mph, with gusts as high as 55 mph. Chance of precipitation is 30%.
Wednesday
Mostly cloudy, with a high near 18. Northwest wind 13 to 18 mph decreasing to 7 to 12 mph in the afternoon. Winds could gust as high as 31 mph.
Wednesday Night
A chance of snow after midnight. Cloudy, with a low around 7. North northwest wind 5 to 7 mph becoming east southeast after midnight. Chance of precipitation is 30%.
Thursday
A chance of snow. Mostly cloudy, with a high near 19. East southeast wind 8 to 13 mph becoming west northwest in the afternoon. Winds could gust as high as 21 mph. Chance of precipitation is 40%.
Thursday Night
A chance of snow. Mostly cloudy, with a low around -3. North northwest wind 11 to 16 mph, with gusts as high as 25 mph. Chance of precipitation is 40%.
Friday
Mostly cloudy and cold, with a high near 8. Northwest wind 13 to 17 mph, with gusts as high as 28 mph.
Friday Night
A slight chance of snow after midnight. Mostly cloudy, with a low around -10. Northwest wind 6 to 11 mph, with gusts as high as 21 mph. Chance of precipitation is 20%.
Saturday
A chance of snow. Mostly cloudy and cold, with a high near 2. Chance of precipitation is 30%.
Saturday Night
Mostly cloudy, with a low around -9.
Sunday
Partly sunny, with a high near 14.
Sunday Night
Mostly cloudy, with a low around 3.
Monday
Mostly sunny, with a high near 20.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Lake Norden SD
 44.59°N 97.2°W (Elev. 1660 ft)
Last Update:
2:36 am CST Dec 9, 2025
Forecast Valid:
2am CST Dec 9, 2025-6pm CST Dec 15, 2025
 
Forecast Discussion
 
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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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation