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 W 10 mph
Barometer 30.23 in (1025.3 mb)
Dewpoint 36°F (2°C)
Visibility 10.00 mi
Wind Chill42°F (6°C)
Last update 5 Apr 11:53 am CDT
Extended Forecast for

6 Miles WSW Watertown SD

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 47. Northwest wind 10 to 18 mph, with gusts as high as 29 mph.

    High: 47 °F

    Mostly Sunny

  • Tonight

    Tonight: Increasing clouds, with a low around 21. North northwest wind 10 to 16 mph, with gusts as high as 25 mph.

    Low: 21 °F

    Increasing
    Clouds

  • Monday

    Monday: Mostly cloudy, then gradually becoming sunny, with a steady temperature around 25. North wind 10 to 14 mph.

    High: 25 °F

    Decreasing
    Clouds

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 14. North northeast wind 6 to 11 mph becoming east southeast after midnight.

    Low: 14 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: A slight chance of snow after 1pm, mixing with rain after 4pm. Mostly cloudy, with a high near 37. Breezy, with a south southeast wind 10 to 15 mph increasing to 16 to 21 mph in the afternoon. Winds could gust as high as 31 mph. Chance of precipitation is 20%.

    High: 37 °F

    Mostly Cloudy
    then Slight
    Chance
    Rain/Snow and
    Breezy

  • Tuesday Night

    Tuesday Night: A slight chance of rain before 7pm, then a slight chance of rain after 1am. Mostly cloudy, with a low around 29. South southeast wind 16 to 18 mph, with gusts as high as 31 mph. Chance of precipitation is 20%.

    Low: 29 °F

    Slight Chance
    Rain

  • Wednesday

    Wednesday: A chance of rain, mainly before 1pm. Partly sunny, with a high near 50. Breezy, with a south southwest wind 13 to 20 mph becoming west in the afternoon. Winds could gust as high as 30 mph. Chance of precipitation is 30%.

    High: 50 °F

    Chance Rain
    and Breezy

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 25. West northwest wind 10 to 18 mph, with gusts as high as 28 mph.

    Low: 25 °F

    Partly Cloudy

  • Thursday

    Thursday: A slight chance of snow after 1pm. Mostly cloudy, with a high near 41. North northeast wind 8 to 10 mph. Chance of precipitation is 20%.

    High: 41 °F

    Mostly Cloudy
    then Slight
    Chance Snow

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 47. Northwest wind 10 to 18 mph, with gusts as high as 29 mph.
Tonight
Increasing clouds, with a low around 21. North northwest wind 10 to 16 mph, with gusts as high as 25 mph.
Monday
Mostly cloudy, then gradually becoming sunny, with a steady temperature around 25. North wind 10 to 14 mph.
Monday Night
Mostly cloudy, with a low around 14. North northeast wind 6 to 11 mph becoming east southeast after midnight.
Tuesday
A slight chance of snow after 1pm, mixing with rain after 4pm. Mostly cloudy, with a high near 37. Breezy, with a south southeast wind 10 to 15 mph increasing to 16 to 21 mph in the afternoon. Winds could gust as high as 31 mph. Chance of precipitation is 20%.
Tuesday Night
A slight chance of rain before 7pm, then a slight chance of rain after 1am. Mostly cloudy, with a low around 29. South southeast wind 16 to 18 mph, with gusts as high as 31 mph. Chance of precipitation is 20%.
Wednesday
A chance of rain, mainly before 1pm. Partly sunny, with a high near 50. Breezy, with a south southwest wind 13 to 20 mph becoming west in the afternoon. Winds could gust as high as 30 mph. Chance of precipitation is 30%.
Wednesday Night
Partly cloudy, with a low around 25. West northwest wind 10 to 18 mph, with gusts as high as 28 mph.
Thursday
A slight chance of snow after 1pm. Mostly cloudy, with a high near 41. North northeast wind 8 to 10 mph. Chance of precipitation is 20%.
Thursday Night
A chance of rain and snow, mainly after 1am. Mostly cloudy, with a low around 25. Chance of precipitation is 30%.
Friday
A chance of rain and snow. Mostly sunny, with a high near 46. Chance of precipitation is 30%.
Friday Night
A chance of rain. Mostly cloudy, with a low around 31. Chance of precipitation is 30%.
Saturday
A chance of rain. Partly sunny, with a high near 52. Chance of precipitation is 40%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
6 Miles WSW Watertown SD
 44.88°N 97.26°W (Elev. 1749 ft)
Last Update:
12:01 pm CDT Apr 5, 2026
Forecast Valid:
12pm CDT Apr 5, 2026-6pm CDT Apr 11, 2026
 
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Additional Resources

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Chance of Precipitation