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.

Mostly Cloudy

74°F

23°C

Humidity 52%
Wind Speed S 12 G 20 mph
Barometer 29.93 in (1012.9 mb)
Dewpoint 55°F (13°C)
Visibility 10.00 mi
Last update 26 Jun 6:53 pm CDT
Extended Forecast for

Lily SD

  • Tonight

    Tonight: Mostly cloudy, with a low around 62. South southeast wind 7 to 17 mph, with gusts as high as 28 mph.

    Low: 62 °F

    Mostly Cloudy

  • Saturday

    Saturday: A slight chance of showers between 4pm and 5pm. Mostly sunny, with a high near 80. Breezy, with a south southeast wind 20 to 26 mph, with gusts as high as 38 mph. Chance of precipitation is 20%.

    High: 80 °F

    Breezy.
    Partly Sunny
    then Slight
    Chance
    Showers

  • Saturday Night

    Saturday Night: Showers and thunderstorms likely, mainly before 3am. Increasing clouds, with a low around 65. Breezy, with a southeast wind 17 to 23 mph, with gusts as high as 34 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 65 °F

    Breezy.
    Chance
    T-storms then
    Showers
    Likely

  • Sunday

    Sunday: A chance of showers and thunderstorms before 1pm. Cloudy through mid morning, then gradual clearing, with a high near 88. Southeast wind 11 to 18 mph, with gusts as high as 29 mph. Chance of precipitation is 40%.

    High: 88 °F

    Chance
    T-storms then
    Chance
    Showers

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 70. East southeast wind 7 to 11 mph.

    Low: 70 °F

    Mostly Clear

  • Monday

    Monday: Sunny and hot, with a high near 93. Breezy, with a southeast wind 15 to 21 mph becoming southwest in the afternoon. Winds could gust as high as 32 mph.

    High: 93 °F

    Hot and
    Breezy

  • Monday Night

    Monday Night: A slight chance of showers and thunderstorms after 1am. Mostly clear, with a low around 65. Southwest wind 9 to 16 mph, with gusts as high as 28 mph. Chance of precipitation is 20%.

    Low: 65 °F

    Clear then
    Slight Chance
    T-storms

  • Tuesday

    Tuesday: Sunny, with a high near 87. West southwest wind 10 to 14 mph, with gusts as high as 24 mph.

    High: 87 °F

    Sunny

  • Tuesday Night

    Tuesday Night: A chance of showers and thunderstorms, mainly before 1am. Mostly clear, with a low around 65. West southwest wind 7 to 10 mph becoming southeast after midnight. Chance of precipitation is 30%.

    Low: 65 °F

    Chance
    Showers

Detailed Forecast

Tonight
Mostly cloudy, with a low around 62. South southeast wind 7 to 17 mph, with gusts as high as 28 mph.
Saturday
A slight chance of showers between 4pm and 5pm. Mostly sunny, with a high near 80. Breezy, with a south southeast wind 20 to 26 mph, with gusts as high as 38 mph. Chance of precipitation is 20%.
Saturday Night
Showers and thunderstorms likely, mainly before 3am. Increasing clouds, with a low around 65. Breezy, with a southeast wind 17 to 23 mph, with gusts as high as 34 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Sunday
A chance of showers and thunderstorms before 1pm. Cloudy through mid morning, then gradual clearing, with a high near 88. Southeast wind 11 to 18 mph, with gusts as high as 29 mph. Chance of precipitation is 40%.
Sunday Night
Mostly clear, with a low around 70. East southeast wind 7 to 11 mph.
Monday
Sunny and hot, with a high near 93. Breezy, with a southeast wind 15 to 21 mph becoming southwest in the afternoon. Winds could gust as high as 32 mph.
Monday Night
A slight chance of showers and thunderstorms after 1am. Mostly clear, with a low around 65. Southwest wind 9 to 16 mph, with gusts as high as 28 mph. Chance of precipitation is 20%.
Tuesday
Sunny, with a high near 87. West southwest wind 10 to 14 mph, with gusts as high as 24 mph.
Tuesday Night
A chance of showers and thunderstorms, mainly before 1am. Mostly clear, with a low around 65. West southwest wind 7 to 10 mph becoming southeast after midnight. Chance of precipitation is 30%.
Wednesday
A slight chance of showers and thunderstorms after 1pm. Mostly sunny and hot, with a high near 90. Chance of precipitation is 20%.
Wednesday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 67. Chance of precipitation is 50%.
Thursday
A slight chance of showers and thunderstorms. Mostly sunny and hot, with a high near 93. Chance of precipitation is 20%.
Thursday Night
Showers likely and possibly a thunderstorm. Partly cloudy, with a low around 69. Chance of precipitation is 60%.
Friday
Sunny and hot, with a high near 92.
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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:
6:36 pm CDT Jun 26, 2026
Forecast Valid:
7pm CDT Jun 26, 2026-6pm CDT Jul 3, 2026
 
Forecast Discussion
 
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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