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

41°F

5°C

Humidity 89%
Wind Speed Calm
Barometer 29.93 in (1014.4 mb)
Dewpoint 38°F (3°C)
Visibility 10.00 mi
Last update 20 Mar 8:53 am CDT
Extended Forecast for

9 Miles S Ortley SD

  • Today

    Today: Mostly sunny, with a high near 65. Light and variable wind becoming west southwest 5 to 10 mph in the afternoon.

    High: 65 °F

    Mostly Sunny

  • Tonight

    Tonight: Mostly cloudy, then gradually becoming clear, with a low around 42. West wind 6 to 10 mph becoming south after midnight.

    Low: 42 °F

    Decreasing
    Clouds

  • Saturday

    Saturday: Mostly sunny, with a high near 74. West southwest wind 11 to 13 mph, with gusts as high as 21 mph.

    High: 74 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: A slight chance of rain after 1am. Increasing clouds, with a low around 32. North wind 10 to 18 mph, with gusts as high as 29 mph. Chance of precipitation is 20%.

    Low: 32 °F

    Mostly Cloudy
    then Slight
    Chance Rain

  • Sunday

    Sunday: Partly sunny, with a high near 42. North wind 15 to 17 mph, with gusts as high as 26 mph.

    High: 42 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 25. North northwest wind 6 to 11 mph becoming east southeast after midnight. Winds could gust as high as 20 mph.

    Low: 25 °F

    Mostly Clear

  • Monday

    Monday: Partly sunny, with a high near 49. South wind 6 to 11 mph increasing to 13 to 18 mph in the afternoon. Winds could gust as high as 28 mph.

    High: 49 °F

    Partly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 32. South wind 10 to 14 mph becoming north northeast after midnight. Winds could gust as high as 23 mph.

    Low: 32 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 49. Northeast wind 10 to 14 mph, with gusts as high as 22 mph.

    High: 49 °F

    Partly Sunny

Detailed Forecast

Today
Mostly sunny, with a high near 65. Light and variable wind becoming west southwest 5 to 10 mph in the afternoon.
Tonight
Mostly cloudy, then gradually becoming clear, with a low around 42. West wind 6 to 10 mph becoming south after midnight.
Saturday
Mostly sunny, with a high near 74. West southwest wind 11 to 13 mph, with gusts as high as 21 mph.
Saturday Night
A slight chance of rain after 1am. Increasing clouds, with a low around 32. North wind 10 to 18 mph, with gusts as high as 29 mph. Chance of precipitation is 20%.
Sunday
Partly sunny, with a high near 42. North wind 15 to 17 mph, with gusts as high as 26 mph.
Sunday Night
Mostly clear, with a low around 25. North northwest wind 6 to 11 mph becoming east southeast after midnight. Winds could gust as high as 20 mph.
Monday
Partly sunny, with a high near 49. South wind 6 to 11 mph increasing to 13 to 18 mph in the afternoon. Winds could gust as high as 28 mph.
Monday Night
Mostly cloudy, with a low around 32. South wind 10 to 14 mph becoming north northeast after midnight. Winds could gust as high as 23 mph.
Tuesday
Partly sunny, with a high near 49. Northeast wind 10 to 14 mph, with gusts as high as 22 mph.
Tuesday Night
Mostly cloudy, with a low around 33.
Wednesday
Partly sunny, with a high near 63.
Wednesday Night
A slight chance of rain. Partly cloudy, with a low around 33. Chance of precipitation is 20%.
Thursday
Mostly sunny, with a high near 45. Breezy.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
9 Miles S Ortley SD
 45.21°N 97.24°W (Elev. 1900 ft)
Last Update:
9:36 am CDT Mar 20, 2026
Forecast Valid:
9am CDT Mar 20, 2026-6pm CDT Mar 26, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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