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

66°F

19°C

Humidity 56%
Wind Speed Calm
Barometer 30.05 in (1017.3 mb)
Dewpoint 50°F (10°C)
Visibility 10.00 mi
Last update 20 Jun 9:53 am CDT
Extended Forecast for

3 Miles ESE Watertown Municipal Airport SD

  • Today

    Today: Sunny, with a high near 76. North northeast wind 3 to 8 mph.

    High: 76 °F

    Sunny

  • Tonight

    Tonight: Increasing clouds, with a low around 54. East wind 5 to 11 mph, with gusts as high as 20 mph.

    Low: 54 °F

    Increasing
    Clouds

  • Sunday

    Sunday: A slight chance of showers before 8am, then a chance of showers after 2pm. Mostly cloudy, with a high near 71. East wind 11 to 13 mph, with gusts as high as 22 mph. Chance of precipitation is 40%.

    High: 71 °F

    Chance
    Showers

  • Sunday Night

    Sunday Night: A chance of showers, mainly before 7pm. Mostly cloudy, with a low around 52. East northeast wind 5 to 9 mph becoming light and variable after midnight. Chance of precipitation is 30%.

    Low: 52 °F

    Chance
    Showers

  • Monday

    Monday: Partly sunny, with a high near 75. Light and variable wind becoming southeast around 6 mph in the morning.

    High: 75 °F

    Partly Sunny

  • Monday Night

    Monday Night: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 55. South wind 5 to 7 mph. Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 55 °F

    Chance
    T-storms then
    Showers
    Likely

  • Tuesday

    Tuesday: Showers likely and possibly a thunderstorm before 1pm, then a chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 74. Southwest wind 8 to 16 mph becoming west northwest in the afternoon. Winds could gust as high as 26 mph. Chance of precipitation is 60%.

    High: 74 °F

    Showers
    Likely

  • Tuesday Night

    Tuesday Night: A slight chance of showers and thunderstorms before 1am. Mostly clear, with a low around 51. Northwest wind 6 to 13 mph, with gusts as high as 22 mph. Chance of precipitation is 20%.

    Low: 51 °F

    Slight Chance
    T-storms

  • Wednesday

    Wednesday: Mostly sunny, with a high near 73. North northwest wind 8 to 11 mph, with gusts as high as 20 mph.

    High: 73 °F

    Mostly Sunny

Detailed Forecast

Today
Sunny, with a high near 76. North northeast wind 3 to 8 mph.
Tonight
Increasing clouds, with a low around 54. East wind 5 to 11 mph, with gusts as high as 20 mph.
Sunday
A slight chance of showers before 8am, then a chance of showers after 2pm. Mostly cloudy, with a high near 71. East wind 11 to 13 mph, with gusts as high as 22 mph. Chance of precipitation is 40%.
Sunday Night
A chance of showers, mainly before 7pm. Mostly cloudy, with a low around 52. East northeast wind 5 to 9 mph becoming light and variable after midnight. Chance of precipitation is 30%.
Monday
Partly sunny, with a high near 75. Light and variable wind becoming southeast around 6 mph in the morning.
Monday Night
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 55. South wind 5 to 7 mph. Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tuesday
Showers likely and possibly a thunderstorm before 1pm, then a chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 74. Southwest wind 8 to 16 mph becoming west northwest in the afternoon. Winds could gust as high as 26 mph. Chance of precipitation is 60%.
Tuesday Night
A slight chance of showers and thunderstorms before 1am. Mostly clear, with a low around 51. Northwest wind 6 to 13 mph, with gusts as high as 22 mph. Chance of precipitation is 20%.
Wednesday
Mostly sunny, with a high near 73. North northwest wind 8 to 11 mph, with gusts as high as 20 mph.
Wednesday Night
Partly cloudy, with a low around 51.
Thursday
Mostly sunny, with a high near 76.
Thursday Night
Partly cloudy, with a low around 54.
Friday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 78. Chance of precipitation is 20%.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles ESE Watertown Municipal Airport SD
 44.91°N 97.11°W (Elev. 1752 ft)
Last Update:
9:36 am CDT Jun 20, 2026
Forecast Valid:
10am CDT Jun 20, 2026-6pm CDT Jun 26, 2026
 
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