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 31%
Wind Speed Calm
Barometer 30.28 in (1026.8 mb)
Dewpoint 23°F (-5°C)
Visibility 10.00 mi
Last update 10 Apr 5:53 pm CDT
Extended Forecast for

9 Miles S Ortley SD

  • Tonight

    Tonight: Increasing clouds, with a low around 36. South southwest wind 6 to 13 mph becoming east southeast in the evening. Winds could gust as high as 22 mph.

    Low: 36 °F

    Increasing
    Clouds

  • Saturday

    Saturday: A chance of showers, mainly between 1pm and 4pm. Cloudy, with a high near 54. Breezy, with a south southeast wind 15 to 21 mph, with gusts as high as 32 mph. Chance of precipitation is 40%.

    High: 54 °F

    Chance
    Showers and
    Breezy

  • Saturday Night

    Saturday Night: A slight chance of showers. Mostly cloudy, with a temperature rising to around 55 by 2am. South southeast wind around 18 mph, with gusts as high as 31 mph. Chance of precipitation is 20%.

    Low: 51 °F⇑

    Slight Chance
    Showers

  • Sunday

    Sunday: Mostly cloudy, then gradually becoming sunny, with a high near 75. Breezy, with a south southwest wind 17 to 21 mph, with gusts as high as 33 mph.

    High: 75 °F

    Decreasing
    Clouds and
    Breezy

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 45. West wind 8 to 15 mph becoming northeast after midnight. Winds could gust as high as 25 mph.

    Low: 45 °F

    Mostly Clear

  • Monday

    Monday: A chance of showers after 1pm. Partly sunny, with a high near 67. East wind 8 to 14 mph, with gusts as high as 22 mph. Chance of precipitation is 30%.

    High: 67 °F

    Mostly Cloudy
    then Chance
    Showers

  • Monday Night

    Monday Night: A chance of showers, mainly before 1am. Mostly cloudy, with a low around 46. East northeast wind 8 to 11 mph. Chance of precipitation is 30%.

    Low: 46 °F

    Chance
    Showers

  • Tuesday

    Tuesday: A chance of showers, with thunderstorms also possible after 1pm. Mostly cloudy, with a high near 61. North wind 9 to 15 mph, with gusts as high as 23 mph. Chance of precipitation is 50%.

    High: 61 °F

    Chance
    Showers

  • Tuesday Night

    Tuesday Night: A chance of showers, mainly before 1am. Mostly cloudy, with a low around 41. North wind 9 to 14 mph. Chance of precipitation is 40%.

    Low: 41 °F

    Chance
    Showers

Detailed Forecast

Tonight
Increasing clouds, with a low around 36. South southwest wind 6 to 13 mph becoming east southeast in the evening. Winds could gust as high as 22 mph.
Saturday
A chance of showers, mainly between 1pm and 4pm. Cloudy, with a high near 54. Breezy, with a south southeast wind 15 to 21 mph, with gusts as high as 32 mph. Chance of precipitation is 40%.
Saturday Night
A slight chance of showers. Mostly cloudy, with a temperature rising to around 55 by 2am. South southeast wind around 18 mph, with gusts as high as 31 mph. Chance of precipitation is 20%.
Sunday
Mostly cloudy, then gradually becoming sunny, with a high near 75. Breezy, with a south southwest wind 17 to 21 mph, with gusts as high as 33 mph.
Sunday Night
Mostly clear, with a low around 45. West wind 8 to 15 mph becoming northeast after midnight. Winds could gust as high as 25 mph.
Monday
A chance of showers after 1pm. Partly sunny, with a high near 67. East wind 8 to 14 mph, with gusts as high as 22 mph. Chance of precipitation is 30%.
Monday Night
A chance of showers, mainly before 1am. Mostly cloudy, with a low around 46. East northeast wind 8 to 11 mph. Chance of precipitation is 30%.
Tuesday
A chance of showers, with thunderstorms also possible after 1pm. Mostly cloudy, with a high near 61. North wind 9 to 15 mph, with gusts as high as 23 mph. Chance of precipitation is 50%.
Tuesday Night
A chance of showers, mainly before 1am. Mostly cloudy, with a low around 41. North wind 9 to 14 mph. Chance of precipitation is 40%.
Wednesday
A chance of showers, mainly before 1pm. Mostly sunny, with a high near 65. Chance of precipitation is 30%.
Wednesday Night
A slight chance of showers. Mostly clear, with a low around 46. Chance of precipitation is 20%.
Thursday
A slight chance of showers. Mostly sunny, with a high near 70. Breezy. Chance of precipitation is 20%.
Thursday Night
A chance of showers. Partly cloudy, with a low around 40. Chance of precipitation is 30%.
Friday
A chance of showers. Partly sunny, with a high near 53. Breezy. Chance of precipitation is 30%.
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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:
6:26 pm CDT Apr 10, 2026
Forecast Valid:
7pm CDT Apr 10, 2026-6pm CDT Apr 17, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation