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

52°F

11°C

Humidity 64%
Wind Speed SW 12 mph
Barometer 29.83 in (1010.4 mb)
Dewpoint 40°F (4°C)
Visibility 10.00 mi
Wind Chill48°F (9°C)
Last update 19 Mar 10:53 pm CDT
Extended Forecast for

Lily SD

  • Tonight

    Tonight: Partly cloudy, with a low around 38. West wind 7 to 10 mph becoming north northwest after midnight.

    Low: 38 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 64. North wind 6 to 11 mph becoming south southwest in the morning. Winds could gust as high as 20 mph.

    High: 64 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 42. West wind 7 to 10 mph becoming south in the evening.

    Low: 42 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 72. Southwest wind 10 to 13 mph, with gusts as high as 21 mph.

    High: 72 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 33. Northeast wind 13 to 18 mph, with gusts as high as 28 mph.

    Low: 33 °F

    Mostly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 43. North northwest wind 16 to 18 mph, with gusts as high as 28 mph.

    High: 43 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 25. North northwest wind 7 to 13 mph becoming east after midnight.

    Low: 25 °F

    Mostly Clear

  • Monday

    Monday: Partly sunny, with a high near 49. South wind 9 to 18 mph, with gusts as high as 29 mph.

    High: 49 °F

    Partly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 34. South wind 10 to 15 mph becoming east southeast after midnight.

    Low: 34 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Partly cloudy, with a low around 38. West wind 7 to 10 mph becoming north northwest after midnight.
Friday
Mostly sunny, with a high near 64. North wind 6 to 11 mph becoming south southwest in the morning. Winds could gust as high as 20 mph.
Friday Night
Partly cloudy, with a low around 42. West wind 7 to 10 mph becoming south in the evening.
Saturday
Mostly sunny, with a high near 72. Southwest wind 10 to 13 mph, with gusts as high as 21 mph.
Saturday Night
Mostly cloudy, with a low around 33. Northeast wind 13 to 18 mph, with gusts as high as 28 mph.
Sunday
Partly sunny, with a high near 43. North northwest wind 16 to 18 mph, with gusts as high as 28 mph.
Sunday Night
Mostly clear, with a low around 25. North northwest wind 7 to 13 mph becoming east after midnight.
Monday
Partly sunny, with a high near 49. South wind 9 to 18 mph, with gusts as high as 29 mph.
Monday Night
Mostly cloudy, with a low around 34. South wind 10 to 15 mph becoming east southeast after midnight.
Tuesday
Mostly cloudy, with a high near 50.
Tuesday Night
Mostly cloudy, with a low around 33.
Wednesday
Mostly cloudy, with a high near 61.
Wednesday Night
A slight chance of rain and snow. Mostly cloudy, with a low around 32. Breezy. Chance of precipitation is 20%.
Thursday
Mostly sunny, with a high near 41. Breezy.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Lily SD
 45.18°N 97.7°W (Elev. 1824 ft)
Last Update:
9:36 pm CDT Mar 19, 2026
Forecast Valid:
11pm CDT Mar 19, 2026-6pm CDT Mar 26, 2026
 
Forecast Discussion
 
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Additional Resources

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