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 52%
Wind Speed NW 7 mph
Barometer 30.09 in (1018.9 mb)
Dewpoint 36°F (2°C)
Visibility 10.00 mi
Wind Chill51°F (11°C)
Last update 12 May 9:53 pm CDT
Extended Forecast for

9 Miles S Ortley SD

  • Tonight

    Tonight: Mostly clear, with a low around 41. North northwest wind 8 to 13 mph becoming light and variable after midnight.

    Low: 41 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 73. Calm wind becoming northwest around 6 mph in the afternoon.

    High: 73 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Patchy blowing dust after 3am. Increasing clouds, with a low around 50. Breezy, with a southeast wind 7 to 12 mph increasing to 17 to 22 mph after midnight. Winds could gust as high as 36 mph.

    Low: 50 °F

    Mostly Clear
    then Patchy
    Blowing Dust
    and Breezy

  • Thursday

    Thursday: A slight chance of showers, with thunderstorms also possible after 4pm. Patchy blowing dust before 4pm. Partly sunny, with a high near 77. Windy, with a south wind 24 to 31 mph, with gusts as high as 47 mph. Chance of precipitation is 20%.

    High: 77 °F

    Windy. Slight
    Chance
    Showers then
    Slight Chance
    T-storms

  • Thursday Night

    Thursday Night: A slight chance of thunderstorms before 7pm. Partly cloudy, with a low around 47. West southwest wind 9 to 16 mph, with gusts as high as 26 mph. Chance of precipitation is 10%.

    Low: 47 °F

    Slight Chance
    T-storms then
    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 74. Breezy, with a west wind 14 to 19 mph increasing to 21 to 26 mph in the afternoon. Winds could gust as high as 41 mph.

    High: 74 °F

    Sunny and
    Breezy

  • Friday Night

    Friday Night: Mostly clear, with a low around 45. West northwest wind 13 to 18 mph decreasing to 6 to 11 mph after midnight. Winds could gust as high as 31 mph.

    Low: 45 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 72. North wind 6 to 11 mph becoming east southeast in the afternoon. Winds could gust as high as 20 mph.

    High: 72 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: A chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 47. East wind 13 to 18 mph, with gusts as high as 29 mph. Chance of precipitation is 50%.

    Low: 47 °F

    Mostly Cloudy
    then Chance
    Showers

Detailed Forecast

Tonight
Mostly clear, with a low around 41. North northwest wind 8 to 13 mph becoming light and variable after midnight.
Wednesday
Sunny, with a high near 73. Calm wind becoming northwest around 6 mph in the afternoon.
Wednesday Night
Patchy blowing dust after 3am. Increasing clouds, with a low around 50. Breezy, with a southeast wind 7 to 12 mph increasing to 17 to 22 mph after midnight. Winds could gust as high as 36 mph.
Thursday
A slight chance of showers, with thunderstorms also possible after 4pm. Patchy blowing dust before 4pm. Partly sunny, with a high near 77. Windy, with a south wind 24 to 31 mph, with gusts as high as 47 mph. Chance of precipitation is 20%.
Thursday Night
A slight chance of thunderstorms before 7pm. Partly cloudy, with a low around 47. West southwest wind 9 to 16 mph, with gusts as high as 26 mph. Chance of precipitation is 10%.
Friday
Sunny, with a high near 74. Breezy, with a west wind 14 to 19 mph increasing to 21 to 26 mph in the afternoon. Winds could gust as high as 41 mph.
Friday Night
Mostly clear, with a low around 45. West northwest wind 13 to 18 mph decreasing to 6 to 11 mph after midnight. Winds could gust as high as 31 mph.
Saturday
Mostly sunny, with a high near 72. North wind 6 to 11 mph becoming east southeast in the afternoon. Winds could gust as high as 20 mph.
Saturday Night
A chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 47. East wind 13 to 18 mph, with gusts as high as 29 mph. Chance of precipitation is 50%.
Sunday
Showers likely, with thunderstorms also possible after 1pm. Mostly cloudy, with a high near 70. Breezy. Chance of precipitation is 60%.
Sunday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 45. Chance of precipitation is 50%.
Monday
A slight chance of showers. Mostly cloudy, with a high near 63. Breezy. Chance of precipitation is 20%.
Monday Night
A slight chance of showers. Mostly cloudy, with a low around 40. Chance of precipitation is 20%.
Tuesday
Mostly sunny, with a high near 66.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
9 Miles S Ortley SD
 45.21°N 97.24°W (Elev. 1900 ft)
Last Update:
9:36 pm CDT May 12, 2026
Forecast Valid:
9pm CDT May 12, 2026-6pm CDT May 19, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation