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

39°F

4°C

Humidity 48%
Wind Speed SE 10 mph
Barometer 29.87 in (1012.1 mb)
Dewpoint 21°F (-6°C)
Visibility 10.00 mi
Wind Chill32°F (0°C)
Last update 29 Mar 3:53 am CDT
Extended Forecast for

5 Miles NNE Watertown Municipal Airport SD

  • Today

    Today: Mostly cloudy through mid morning, then gradual clearing, with a high near 69. South southeast wind 6 to 9 mph becoming west in the afternoon.

    High: 69 °F

    Becoming
    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 37. Northwest wind 5 to 8 mph becoming east after midnight.

    Low: 37 °F

    Mostly Clear

  • Monday

    Monday: Mostly sunny, with a high near 65. East northeast wind 10 to 13 mph.

    High: 65 °F

    Mostly Sunny

  • Monday Night

    Monday Night: A slight chance of rain after 1am. Mostly cloudy, with a low around 32. Northeast wind 9 to 16 mph, with gusts as high as 28 mph. Chance of precipitation is 20%.

    Low: 32 °F

    Mostly Cloudy
    then Slight
    Chance Rain

  • Tuesday

    Tuesday: Partly sunny, with a high near 42. Breezy, with a north northwest wind 16 to 21 mph, with gusts as high as 32 mph.

    High: 42 °F

    Partly Sunny
    and Breezy

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 19. North northeast wind 7 to 16 mph, with gusts as high as 26 mph.

    Low: 19 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 43. East wind 7 to 14 mph, with gusts as high as 22 mph.

    High: 43 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: A slight chance of snow after 1am. Mostly cloudy, with a low around 28. East southeast wind around 15 mph, with gusts as high as 24 mph. Chance of precipitation is 20%.

    Low: 28 °F

    Mostly Cloudy
    then Slight
    Chance Snow

  • Thursday

    Thursday: A chance of snow. Mostly cloudy, with a high near 45. Breezy, with an east southeast wind 15 to 23 mph, with gusts as high as 34 mph. Chance of precipitation is 40%.

    High: 45 °F

    Chance Snow
    and Breezy

Detailed Forecast

Today
Mostly cloudy through mid morning, then gradual clearing, with a high near 69. South southeast wind 6 to 9 mph becoming west in the afternoon.
Tonight
Mostly clear, with a low around 37. Northwest wind 5 to 8 mph becoming east after midnight.
Monday
Mostly sunny, with a high near 65. East northeast wind 10 to 13 mph.
Monday Night
A slight chance of rain after 1am. Mostly cloudy, with a low around 32. Northeast wind 9 to 16 mph, with gusts as high as 28 mph. Chance of precipitation is 20%.
Tuesday
Partly sunny, with a high near 42. Breezy, with a north northwest wind 16 to 21 mph, with gusts as high as 32 mph.
Tuesday Night
Partly cloudy, with a low around 19. North northeast wind 7 to 16 mph, with gusts as high as 26 mph.
Wednesday
Mostly sunny, with a high near 43. East wind 7 to 14 mph, with gusts as high as 22 mph.
Wednesday Night
A slight chance of snow after 1am. Mostly cloudy, with a low around 28. East southeast wind around 15 mph, with gusts as high as 24 mph. Chance of precipitation is 20%.
Thursday
A chance of snow. Mostly cloudy, with a high near 45. Breezy, with an east southeast wind 15 to 23 mph, with gusts as high as 34 mph. Chance of precipitation is 40%.
Thursday Night
A chance of rain and snow before 1am, then a chance of rain. Mostly cloudy, with a low around 30. Breezy. Chance of precipitation is 40%.
Friday
Rain likely. Mostly cloudy, with a high near 43. Breezy. Chance of precipitation is 60%.
Friday Night
A chance of rain and snow. Mostly cloudy, with a low around 27. Chance of precipitation is 50%.
Saturday
A chance of rain and snow. Mostly cloudy, with a high near 40. Breezy. Chance of precipitation is 40%.
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles NNE Watertown Municipal Airport SD
 44.97°N 97.12°W (Elev. 1745 ft)
Last Update:
3:36 am CDT Mar 29, 2026
Forecast Valid:
4am CDT Mar 29, 2026-6pm CDT Apr 4, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation