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

70°F

21°C

Humidity 71%
Wind Speed SE 9 G 18 mph
Barometer 30.00 in (1015.2 mb)
Dewpoint 60°F (16°C)
Visibility 10.00 mi
Last update 11 Sep 9:53 pm CDT
Extended Forecast for

Lily SD

  • Tonight

    Tonight: Mostly cloudy, with a low around 65. South southeast wind 7 to 15 mph, with gusts as high as 26 mph.

    Low: 65 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly cloudy, then gradually becoming sunny, with a high near 83. South southeast wind 10 to 14 mph, with gusts as high as 24 mph.

    High: 83 °F

    Decreasing
    Clouds

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 64. East southeast wind around 8 mph.

    Low: 64 °F

    Mostly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 83. Southeast wind 8 to 13 mph, with gusts as high as 21 mph.

    High: 83 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 66. Southeast wind around 10 mph.

    Low: 66 °F

    Mostly Cloudy

  • Sunday

    Sunday: A chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 80. South wind 10 to 17 mph, with gusts as high as 28 mph. Chance of precipitation is 30%.

    High: 80 °F

    Partly Sunny
    then Chance
    Showers

  • Sunday Night

    Sunday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 61. South wind 11 to 14 mph, with gusts as high as 25 mph. Chance of precipitation is 30%.

    Low: 61 °F

    Chance
    Showers

  • Monday

    Monday: A slight chance of showers. Mostly sunny, with a high near 79. South wind 11 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 20%.

    High: 79 °F

    Slight Chance
    Showers

  • Monday Night

    Monday Night: Mostly clear, with a low around 63. South wind around 10 mph.

    Low: 63 °F

    Mostly Clear

Detailed Forecast

Tonight
Mostly cloudy, with a low around 65. South southeast wind 7 to 15 mph, with gusts as high as 26 mph.
Friday
Mostly cloudy, then gradually becoming sunny, with a high near 83. South southeast wind 10 to 14 mph, with gusts as high as 24 mph.
Friday Night
Mostly cloudy, with a low around 64. East southeast wind around 8 mph.
Saturday
Partly sunny, with a high near 83. Southeast wind 8 to 13 mph, with gusts as high as 21 mph.
Saturday Night
Mostly cloudy, with a low around 66. Southeast wind around 10 mph.
Sunday
A chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 80. South wind 10 to 17 mph, with gusts as high as 28 mph. Chance of precipitation is 30%.
Sunday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 61. South wind 11 to 14 mph, with gusts as high as 25 mph. Chance of precipitation is 30%.
Monday
A slight chance of showers. Mostly sunny, with a high near 79. South wind 11 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 20%.
Monday Night
Mostly clear, with a low around 63. South wind around 10 mph.
Tuesday
A slight chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 81. Chance of precipitation is 20%.
Tuesday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 59. Chance of precipitation is 50%.
Wednesday
A chance of showers and thunderstorms. Partly sunny, with a high near 73. Chance of precipitation is 40%.
Wednesday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 56. Chance of precipitation is 30%.
Thursday
A chance of showers. Partly sunny, with a high near 68. Chance of precipitation is 40%.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Lily SD
 45.18°N 97.67°W (Elev. 1821 ft)
Last Update:
9:46 pm CDT Sep 11, 2025
Forecast Valid:
9pm CDT Sep 11, 2025-6pm CDT Sep 18, 2025
 
Forecast Discussion
 
Get as KML Get as XML

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