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.

Rain

41°F

5°C

Humidity 82%
Wind Speed SE 16 G 28 mph
Barometer 30.10 in (1020.4 mb)
Dewpoint 36°F (2°C)
Visibility 6.00 mi
Wind Chill33°F (1°C)
Last update 11 Apr 7:53 am CDT
Extended Forecast for

9 Miles S Ortley SD

  • Today

    Today: A chance of showers, mainly before 1pm. Patchy fog after 3pm. Otherwise, cloudy, with a high near 53. Breezy, with a south southeast wind 17 to 21 mph, with gusts as high as 33 mph. Chance of precipitation is 40%.

    High: 53 °F

    Chance
    Showers and
    Patchy Fog

  • Tonight

    Tonight: Widespread dense fog, mainly between midnight and 1am. Otherwise, mostly cloudy, with a temperature rising to around 55 by 1am. Breezy, with a south wind 18 to 21 mph, with gusts as high as 33 mph.

    Low: 51 °F⇑

    Dense Fog and
    Breezy

  • Sunday

    Sunday: A slight chance of showers before 7am. Areas of fog before 10am. Otherwise, partly sunny, then gradually becoming sunny, with a high near 75. Breezy, with a southwest wind 18 to 21 mph, with gusts as high as 32 mph. Chance of precipitation is 10%.

    High: 75 °F

    Slight Chance
    Showers and
    Areas Fog
    then Sunny
    and Breezy

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 44. West wind 8 to 14 mph becoming northeast after midnight. Winds could gust as high as 24 mph.

    Low: 44 °F

    Mostly Clear

  • Monday

    Monday: A chance of showers, mainly after 1pm. Partly sunny, with a high near 67. East wind 10 to 14 mph, with gusts as high as 22 mph. Chance of precipitation is 40%.

    High: 67 °F

    Chance
    Showers

  • Monday Night

    Monday Night: A chance of showers and thunderstorms before 10pm, then a chance of showers between 10pm and 1am. Partly cloudy, with a low around 46. East northeast wind 7 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 64. East wind 8 to 14 mph becoming north in the morning. Chance of precipitation is 50%.

    High: 64 °F

    Chance
    Showers

  • Tuesday Night

    Tuesday Night: A chance of showers and thunderstorms before 1am, then a slight chance of showers. Mostly cloudy, with a low around 43. North wind 7 to 11 mph becoming west northwest after midnight. Winds could gust as high as 20 mph. Chance of precipitation is 30%.

    Low: 43 °F

    Chance
    Showers

  • Wednesday

    Wednesday: A chance of showers, mainly after 1pm. Mostly sunny, with a high near 67. Southwest wind 6 to 11 mph. Chance of precipitation is 30%.

    High: 67 °F

    Chance
    Showers

Detailed Forecast

Today
A chance of showers, mainly before 1pm. Patchy fog after 3pm. Otherwise, cloudy, with a high near 53. Breezy, with a south southeast wind 17 to 21 mph, with gusts as high as 33 mph. Chance of precipitation is 40%.
Tonight
Widespread dense fog, mainly between midnight and 1am. Otherwise, mostly cloudy, with a temperature rising to around 55 by 1am. Breezy, with a south wind 18 to 21 mph, with gusts as high as 33 mph.
Sunday
A slight chance of showers before 7am. Areas of fog before 10am. Otherwise, partly sunny, then gradually becoming sunny, with a high near 75. Breezy, with a southwest wind 18 to 21 mph, with gusts as high as 32 mph. Chance of precipitation is 10%.
Sunday Night
Mostly clear, with a low around 44. West wind 8 to 14 mph becoming northeast after midnight. Winds could gust as high as 24 mph.
Monday
A chance of showers, mainly after 1pm. Partly sunny, with a high near 67. East wind 10 to 14 mph, with gusts as high as 22 mph. Chance of precipitation is 40%.
Monday Night
A chance of showers and thunderstorms before 10pm, then a chance of showers between 10pm and 1am. Partly cloudy, with a low around 46. East northeast wind 7 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 64. East wind 8 to 14 mph becoming north in the morning. Chance of precipitation is 50%.
Tuesday Night
A chance of showers and thunderstorms before 1am, then a slight chance of showers. Mostly cloudy, with a low around 43. North wind 7 to 11 mph becoming west northwest after midnight. Winds could gust as high as 20 mph. Chance of precipitation is 30%.
Wednesday
A chance of showers, mainly after 1pm. Mostly sunny, with a high near 67. Southwest wind 6 to 11 mph. Chance of precipitation is 30%.
Wednesday Night
A slight chance of showers before 1am. Mostly clear, with a low around 47. Chance of precipitation is 20%.
Thursday
A slight chance of showers. Mostly sunny, with a high near 71. Chance of precipitation is 20%.
Thursday Night
A chance of showers. Partly cloudy, with a low around 37. Chance of precipitation is 30%.
Friday
A chance of rain and snow showers. Mostly cloudy, with a high near 47. 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:
7:36 am CDT Apr 11, 2026
Forecast Valid:
8am CDT Apr 11, 2026-6pm CDT Apr 17, 2026
 
Forecast Discussion
 
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Additional Resources

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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