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

Watertown, Watertown Municipal Airport (KATY)

Lat: 44.9°NLon: 97.15°WElev: 1745ft.

Fair

47°F

8°C

Humidity 66%
Wind Speed NE 14 mph
Barometer 29.71 in (1006.7 mb)
Dewpoint 36°F (2°C)
Visibility 10.00 mi
Wind Chill41°F (5°C)
Last update 30 Mar 9:53 pm CDT
Extended Forecast for

Watertown SD

  • Tonight

    Tonight: A slight chance of rain between 3am and 4am. Increasing clouds, with a low around 35. Breezy, with a north wind 13 to 20 mph, with gusts as high as 32 mph. Chance of precipitation is 20%.

    Low: 35 °F

    Partly Cloudy
    then Slight
    Chance Rain
    and Breezy

  • Tuesday

    Tuesday: Partly sunny, with a high near 45. Breezy, with a north northwest wind 16 to 21 mph, with gusts as high as 32 mph.

    High: 45 °F

    Partly Sunny
    and Breezy

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 23. Northeast wind 11 to 14 mph, with gusts as high as 22 mph.

    Low: 23 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: A chance of snow. Cloudy, with a high near 37. East wind 11 to 17 mph, with gusts as high as 25 mph. Chance of precipitation is 50%.

    High: 37 °F

    Chance Snow

  • Wednesday Night

    Wednesday Night: Snow. Low around 25. East wind around 16 mph, with gusts as high as 26 mph. Chance of precipitation is 80%. New snow accumulation of 1 to 3 inches possible.

    Low: 25 °F

    Snow

  • Thursday

    Thursday: Snow. High near 34. East northeast wind around 16 mph, with gusts as high as 25 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 3 inches possible.

    High: 34 °F

    Snow

  • Thursday Night

    Thursday Night: A chance of snow. Mostly cloudy, with a low around 24. Northeast wind 10 to 14 mph. Chance of precipitation is 30%.

    Low: 24 °F

    Chance Snow

  • Friday

    Friday: Snow likely. Mostly cloudy, with a high near 34. East northeast wind 13 to 17 mph. Chance of precipitation is 70%.

    High: 34 °F

    Snow Likely

  • Friday Night

    Friday Night: Snow likely. Mostly cloudy, with a low around 24. North northeast wind 13 to 15 mph, with gusts as high as 23 mph. Chance of precipitation is 60%.

    Low: 24 °F

    Snow Likely

Detailed Forecast

Tonight
A slight chance of rain between 3am and 4am. Increasing clouds, with a low around 35. Breezy, with a north wind 13 to 20 mph, with gusts as high as 32 mph. Chance of precipitation is 20%.
Tuesday
Partly sunny, with a high near 45. Breezy, with a north northwest wind 16 to 21 mph, with gusts as high as 32 mph.
Tuesday Night
Mostly cloudy, with a low around 23. Northeast wind 11 to 14 mph, with gusts as high as 22 mph.
Wednesday
A chance of snow. Cloudy, with a high near 37. East wind 11 to 17 mph, with gusts as high as 25 mph. Chance of precipitation is 50%.
Wednesday Night
Snow. Low around 25. East wind around 16 mph, with gusts as high as 26 mph. Chance of precipitation is 80%. New snow accumulation of 1 to 3 inches possible.
Thursday
Snow. High near 34. East northeast wind around 16 mph, with gusts as high as 25 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 3 inches possible.
Thursday Night
A chance of snow. Mostly cloudy, with a low around 24. Northeast wind 10 to 14 mph. Chance of precipitation is 30%.
Friday
Snow likely. Mostly cloudy, with a high near 34. East northeast wind 13 to 17 mph. Chance of precipitation is 70%.
Friday Night
Snow likely. Mostly cloudy, with a low around 24. North northeast wind 13 to 15 mph, with gusts as high as 23 mph. Chance of precipitation is 60%.
Saturday
Snow likely, mainly before 1pm. Mostly cloudy, with a high near 35. Breezy. Chance of precipitation is 60%.
Saturday Night
A slight chance of snow. Mostly cloudy, with a low around 19. Chance of precipitation is 20%.
Sunday
Mostly sunny, with a high near 40.
Sunday Night
Partly cloudy, with a low around 24.
Monday
Mostly sunny, with a high near 44.
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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:
9:36 pm CDT Mar 30, 2026
Forecast Valid:
10pm CDT Mar 30, 2026-6pm CDT Apr 6, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation