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

66°F

19°C

Humidity 54%
Wind Speed SW 8 mph
Barometer 29.89 in (1012.5 mb)
Dewpoint 49°F (9°C)
Visibility 10.00 mi
Last update 20 Mar 3:53 pm CDT
Extended Forecast for

9 Miles S Ortley SD

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 67. Light west northwest wind.

    High: 67 °F

    Mostly Sunny

  • Tonight

    Tonight: Mostly cloudy, then gradually becoming clear, with a low around 43. Northwest wind 6 to 11 mph becoming southeast in the evening. Winds could gust as high as 20 mph.

    Low: 43 °F

    Decreasing
    Clouds

  • Saturday

    Saturday: Mostly sunny, with a high near 75. West southwest wind 11 to 13 mph, with gusts as high as 22 mph.

    High: 75 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: A slight chance of rain and snow between 1am and 4am, then a slight chance of snow after 4am. Increasing clouds, with a low around 31. Blustery, with a north wind 14 to 23 mph, with gusts as high as 34 mph. Chance of precipitation is 20%.

    Low: 31 °F

    Blustery.
    Increasing
    Clouds then
    Slight Chance
    Rain/Snow

  • Sunday

    Sunday: Partly sunny, with a high near 42. North wind 14 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 10 mph becoming east after midnight.

    Low: 25 °F

    Mostly Clear

  • Monday

    Monday: Partly sunny, with a high near 50. South southeast wind 6 to 11 mph increasing to 12 to 17 mph in the afternoon. Winds could gust as high as 26 mph.

    High: 50 °F

    Partly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 30. South wind 11 to 14 mph, with gusts as high as 22 mph.

    Low: 30 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 51. East northeast wind 10 to 14 mph, with gusts as high as 22 mph.

    High: 51 °F

    Partly Sunny

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 67. Light west northwest wind.
Tonight
Mostly cloudy, then gradually becoming clear, with a low around 43. Northwest wind 6 to 11 mph becoming southeast in the evening. Winds could gust as high as 20 mph.
Saturday
Mostly sunny, with a high near 75. West southwest wind 11 to 13 mph, with gusts as high as 22 mph.
Saturday Night
A slight chance of rain and snow between 1am and 4am, then a slight chance of snow after 4am. Increasing clouds, with a low around 31. Blustery, with a north wind 14 to 23 mph, with gusts as high as 34 mph. Chance of precipitation is 20%.
Sunday
Partly sunny, with a high near 42. North wind 14 to 17 mph, with gusts as high as 26 mph.
Sunday Night
Mostly clear, with a low around 25. North northwest wind 6 to 10 mph becoming east after midnight.
Monday
Partly sunny, with a high near 50. South southeast wind 6 to 11 mph increasing to 12 to 17 mph in the afternoon. Winds could gust as high as 26 mph.
Monday Night
Mostly cloudy, with a low around 30. South wind 11 to 14 mph, with gusts as high as 22 mph.
Tuesday
Partly sunny, with a high near 51. East northeast wind 10 to 14 mph, with gusts as high as 22 mph.
Tuesday Night
Mostly cloudy, with a low around 32.
Wednesday
Mostly cloudy, with a high near 57.
Wednesday Night
A slight chance of rain. Mostly cloudy, with a low around 34. Chance of precipitation is 20%.
Thursday
Mostly sunny, with a high near 44. Breezy.
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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:
2:36 pm CDT Mar 20, 2026
Forecast Valid:
4pm CDT Mar 20, 2026-6pm CDT Mar 26, 2026
 
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