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 and Breezy

59°F

15°C

Humidity 56%
Wind Speed S 21 mph
Barometer 29.98 in (1015.3 mb)
Dewpoint 43°F (6°C)
Visibility 10.00 mi
Last update 3 Oct 9:53 am CDT
Extended Forecast for

Clark SD

  • Today

    Today: A chance of showers, mainly before 3pm. Mostly sunny, with a high near 65. South southwest wind 11 to 17 mph becoming west in the afternoon. Winds could gust as high as 31 mph. Chance of precipitation is 50%.

    High: 65 °F

    Chance
    Showers

  • Tonight

    Tonight: Mostly clear, with a low around 44. North northwest wind 7 to 11 mph, with gusts as high as 22 mph.

    Low: 44 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 63. West northwest wind 3 to 8 mph.

    High: 63 °F

    Sunny

  • Sunday Night

    Sunday Night: Clear, with a low around 46. Calm wind becoming southeast 5 to 8 mph after midnight.

    Low: 46 °F

    Clear

  • Monday

    Monday: Sunny, with a high near 67. Breezy, with a southeast wind 11 to 16 mph increasing to 17 to 22 mph in the afternoon. Winds could gust as high as 33 mph.

    High: 67 °F

    Sunny then
    Sunny and
    Breezy

  • Monday Night

    Monday Night: Mostly clear, with a low around 54. South wind 15 to 18 mph, with gusts as high as 30 mph.

    Low: 54 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 74. South wind 9 to 11 mph becoming west northwest in the afternoon. Winds could gust as high as 20 mph.

    High: 74 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 52. West northwest wind around 6 mph becoming north northeast after midnight.

    Low: 52 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 70. North northeast wind 6 to 9 mph becoming west northwest in the afternoon.

    High: 70 °F

    Sunny

Detailed Forecast

Today
A chance of showers, mainly before 3pm. Mostly sunny, with a high near 65. South southwest wind 11 to 17 mph becoming west in the afternoon. Winds could gust as high as 31 mph. Chance of precipitation is 50%.
Tonight
Mostly clear, with a low around 44. North northwest wind 7 to 11 mph, with gusts as high as 22 mph.
Sunday
Sunny, with a high near 63. West northwest wind 3 to 8 mph.
Sunday Night
Clear, with a low around 46. Calm wind becoming southeast 5 to 8 mph after midnight.
Monday
Sunny, with a high near 67. Breezy, with a southeast wind 11 to 16 mph increasing to 17 to 22 mph in the afternoon. Winds could gust as high as 33 mph.
Monday Night
Mostly clear, with a low around 54. South wind 15 to 18 mph, with gusts as high as 30 mph.
Tuesday
Sunny, with a high near 74. South wind 9 to 11 mph becoming west northwest in the afternoon. Winds could gust as high as 20 mph.
Tuesday Night
Mostly clear, with a low around 52. West northwest wind around 6 mph becoming north northeast after midnight.
Wednesday
Sunny, with a high near 70. North northeast wind 6 to 9 mph becoming west northwest in the afternoon.
Wednesday Night
Partly cloudy, with a low around 51.
Thursday
Mostly sunny, with a high near 68.
Thursday Night
Mostly clear, with a low around 51.
Friday
Sunny, with a high near 71.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Clark SD
 44.88°N 97.75°W (Elev. 1808 ft)
Last Update:
10:36 am CDT Oct 3, 2026
Forecast Valid:
10am CDT Oct 3, 2026-6pm CDT Oct 9, 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