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

53°F

12°C

Humidity 43%
Wind Speed SE 9 mph
Barometer 29.98 in (1016.4 mb)
Dewpoint 31°F (-1°C)
Visibility 10.00 mi
Wind Chill50°F (10°C)
Last update 24 Mar 6:53 pm CDT
Extended Forecast for

5 Miles NNE Watertown Municipal Airport SD

  • Tonight

    Tonight: Partly cloudy, with a low around 37. South wind 7 to 11 mph.

    Low: 37 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 70. South wind 6 to 11 mph becoming west in the afternoon.

    High: 70 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: A slight chance of rain after 1am. Mostly cloudy, with a low around 36. West wind 5 to 10 mph becoming east northeast after midnight. Winds could gust as high as 21 mph. Chance of precipitation is 20%.

    Low: 36 °F

    Mostly Cloudy
    then Slight
    Chance Rain

  • Thursday

    Thursday: Partly sunny, with a high near 44. Breezy, with a north wind 15 to 22 mph, with gusts as high as 32 mph.

    High: 44 °F

    Partly Sunny
    and Breezy

  • Thursday Night

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

    Low: 16 °F

    Partly Cloudy

  • Friday

    Friday: Sunny, with a high near 41. West northwest wind 6 to 11 mph, with gusts as high as 20 mph.

    High: 41 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 26. West wind 7 to 10 mph becoming south southwest after midnight.

    Low: 26 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 57. South southwest wind 11 to 14 mph, with gusts as high as 22 mph.

    High: 57 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 34. East southeast wind around 10 mph, with gusts as high as 20 mph.

    Low: 34 °F

    Partly Cloudy

Detailed Forecast

Tonight
Partly cloudy, with a low around 37. South wind 7 to 11 mph.
Wednesday
Mostly sunny, with a high near 70. South wind 6 to 11 mph becoming west in the afternoon.
Wednesday Night
A slight chance of rain after 1am. Mostly cloudy, with a low around 36. West wind 5 to 10 mph becoming east northeast after midnight. Winds could gust as high as 21 mph. Chance of precipitation is 20%.
Thursday
Partly sunny, with a high near 44. Breezy, with a north wind 15 to 22 mph, with gusts as high as 32 mph.
Thursday Night
Partly cloudy, with a low around 16. North wind 7 to 16 mph, with gusts as high as 26 mph.
Friday
Sunny, with a high near 41. West northwest wind 6 to 11 mph, with gusts as high as 20 mph.
Friday Night
Mostly clear, with a low around 26. West wind 7 to 10 mph becoming south southwest after midnight.
Saturday
Mostly sunny, with a high near 57. South southwest wind 11 to 14 mph, with gusts as high as 22 mph.
Saturday Night
Partly cloudy, with a low around 34. East southeast wind around 10 mph, with gusts as high as 20 mph.
Sunday
Mostly sunny, with a high near 65.
Sunday Night
Mostly clear, with a low around 38.
Monday
Partly sunny, with a high near 65.
Monday Night
Partly cloudy, with a low around 38.
Tuesday
A slight chance of rain. Partly sunny, with a high near 60. Chance of precipitation is 20%.
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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:
7:36 pm CDT Mar 24, 2026
Forecast Valid:
7pm CDT Mar 24, 2026-6pm CDT Mar 31, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation