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

Hazardous Weather Conditions

Current conditions at

Watertown, Watertown Municipal Airport (KATY)

Lat: 44.9°NLon: 97.15°WElev: 1745ft.

Light Freezing Rain Fog/Mist

30°F

-1°C

Humidity 96%
Wind Speed NE 13 mph
Barometer 30.04 in (1019.2 mb)
Dewpoint 29°F (-2°C)
Visibility 2.50 mi
Wind Chill20°F (-7°C)
Last update 3 Apr 7:53 pm CDT
Extended Forecast for

Watertown SD

Winter Weather Advisory April 3, 08:37pm until April 4, 07:00pm
Click here for hazard details and duration
Winter Weather Advisory
  •  
    Winter Weather Advisory April 3, 08:37pm until April 4, 07:00pm

    NOW until 7:00pm Sat

    Winter Weather Advisory

  • Tonight

    Low: 27 °F

    Wintry Mix
    then Snow
    Likely

  • Saturday

    Saturday: Snow, mainly before 3pm. Patchy blowing snow after 10am. High near 35. Breezy, with a northwest wind 13 to 21 mph, with gusts as high as 32 mph. Chance of precipitation is 80%. New snow accumulation of less than one inch possible.

    High: 35 °F

    Snow and
    Patchy
    Blowing Snow

  • Saturday Night

    Saturday Night: Cloudy, then gradually becoming partly cloudy, with a low around 25. West northwest wind 9 to 17 mph, with gusts as high as 26 mph.

    Low: 25 °F

    Decreasing
    Clouds

  • Sunday

    Sunday: Mostly sunny, with a high near 42. West wind 9 to 16 mph, with gusts as high as 26 mph.

    High: 42 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 21. Northwest wind 9 to 15 mph, with gusts as high as 24 mph.

    Low: 21 °F

    Partly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 30. North wind 10 to 14 mph, with gusts as high as 22 mph.

    High: 30 °F

    Partly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 15. North northeast wind 7 to 11 mph becoming east southeast after midnight.

    Low: 15 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: A slight chance of snow after 1pm. Mostly cloudy, with a high near 41. Breezy, with a south southeast wind 10 to 15 mph increasing to 17 to 22 mph in the afternoon. Winds could gust as high as 31 mph. Chance of precipitation is 20%.

    High: 41 °F

    Mostly Cloudy
    then Slight
    Chance Snow
    and Breezy

Detailed Forecast

Tonight
Snow, possibly mixed with freezing rain, becoming all snow after 10pm. Low around 27. Northeast wind 6 to 13 mph becoming northwest after midnight. Chance of precipitation is 90%. Little or no ice accumulation expected. Total nighttime snow accumulation of 1 to 2 inches possible.
Saturday
Snow, mainly before 3pm. Patchy blowing snow after 10am. High near 35. Breezy, with a northwest wind 13 to 21 mph, with gusts as high as 32 mph. Chance of precipitation is 80%. New snow accumulation of less than one inch possible.
Saturday Night
Cloudy, then gradually becoming partly cloudy, with a low around 25. West northwest wind 9 to 17 mph, with gusts as high as 26 mph.
Sunday
Mostly sunny, with a high near 42. West wind 9 to 16 mph, with gusts as high as 26 mph.
Sunday Night
Partly cloudy, with a low around 21. Northwest wind 9 to 15 mph, with gusts as high as 24 mph.
Monday
Partly sunny, with a high near 30. North wind 10 to 14 mph, with gusts as high as 22 mph.
Monday Night
Mostly cloudy, with a low around 15. North northeast wind 7 to 11 mph becoming east southeast after midnight.
Tuesday
A slight chance of snow after 1pm. Mostly cloudy, with a high near 41. Breezy, with a south southeast wind 10 to 15 mph increasing to 17 to 22 mph in the afternoon. Winds could gust as high as 31 mph. Chance of precipitation is 20%.
Tuesday Night
Partly cloudy, with a low around 31. Breezy, with a south southeast wind 20 to 22 mph, with gusts as high as 33 mph.
Wednesday
Mostly sunny, with a high near 56. Breezy.
Wednesday Night
A slight chance of rain and snow. Mostly cloudy, with a low around 26. Blustery. Chance of precipitation is 20%.
Thursday
A chance of rain and snow. Mostly cloudy, with a high near 41. Chance of precipitation is 30%.
Thursday Night
A chance of snow. Mostly cloudy, with a low around 25. Chance of precipitation is 40%.
Friday
A chance of rain and snow. Mostly cloudy, with a high near 44. Chance of precipitation is 50%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Watertown SD
 44.91°N 97.14°W (Elev. 1736 ft)
Last Update:
7:36 pm CDT Apr 3, 2026
Forecast Valid:
8pm CDT Apr 3, 2026-6pm CDT Apr 10, 2026
 
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