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

89°F

32°C

Humidity 47%
Wind Speed W 5 mph
Barometer 29.93 in (1012.0 mb)
Dewpoint 66°F (19°C)
Visibility 10.00 mi
Heat Index92°F (33°C)
Last update 28 Jul 3:53 pm CDT
Extended Forecast for

3 Miles ESE Watertown Municipal Airport SD

  • This Afternoon

    This Afternoon: A chance of showers and thunderstorms, mainly after 5pm. Patchy smoke. Mostly sunny and hot, with a high near 91. Southwest wind around 6 mph. Chance of precipitation is 30%.

    High: 91 °F

    Chance
    Showers

  • Tonight

    Tonight: A chance of showers and thunderstorms, mainly before 8pm. Patchy smoke. Partly cloudy, with a low around 69. West northwest wind around 6 mph becoming east southeast in the evening. Chance of precipitation is 30%.

    Low: 69 °F

    Chance
    T-storms then
    Patchy Smoke

  • Wednesday

    Wednesday: Patchy smoke. Mostly sunny and hot, with a high near 92. South wind 6 to 9 mph.

    High: 92 °F

    Patchy Smoke

  • Wednesday Night

    Wednesday Night: A slight chance of showers and thunderstorms after 1am. Patchy smoke before 1am. Partly cloudy, with a low around 71. South southeast wind 7 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.

    Low: 71 °F

    Patchy Smoke
    then Slight
    Chance
    T-storms

  • Thursday

    Thursday: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 1pm. High near 84. South wind 10 to 13 mph, with gusts as high as 23 mph. Chance of precipitation is 80%. New rainfall amounts between three quarters and one inch possible.

    High: 84 °F

    Chance
    Showers then
    Showers

  • Thursday Night

    Thursday Night: Showers and possibly a thunderstorm. Low around 65. South southeast wind 7 to 9 mph becoming north after midnight. Chance of precipitation is 80%. New rainfall amounts between three quarters and one inch possible.

    Low: 65 °F

    Showers

  • Friday

    Friday: A chance of showers and thunderstorms before 10am, then a chance of showers between 10am and 1pm, then a slight chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 81. North northeast wind around 15 mph, with gusts as high as 26 mph. Chance of precipitation is 30%.

    High: 81 °F

    Chance
    Showers

  • Friday Night

    Friday Night: Mostly clear, with a low around 61. North northeast wind 5 to 10 mph becoming light in the evening.

    Low: 61 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 82. North wind 3 to 7 mph.

    High: 82 °F

    Sunny

Detailed Forecast

This Afternoon
A chance of showers and thunderstorms, mainly after 5pm. Patchy smoke. Mostly sunny and hot, with a high near 91. Southwest wind around 6 mph. Chance of precipitation is 30%.
Tonight
A chance of showers and thunderstorms, mainly before 8pm. Patchy smoke. Partly cloudy, with a low around 69. West northwest wind around 6 mph becoming east southeast in the evening. Chance of precipitation is 30%.
Wednesday
Patchy smoke. Mostly sunny and hot, with a high near 92. South wind 6 to 9 mph.
Wednesday Night
A slight chance of showers and thunderstorms after 1am. Patchy smoke before 1am. Partly cloudy, with a low around 71. South southeast wind 7 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.
Thursday
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 1pm. High near 84. South wind 10 to 13 mph, with gusts as high as 23 mph. Chance of precipitation is 80%. New rainfall amounts between three quarters and one inch possible.
Thursday Night
Showers and possibly a thunderstorm. Low around 65. South southeast wind 7 to 9 mph becoming north after midnight. Chance of precipitation is 80%. New rainfall amounts between three quarters and one inch possible.
Friday
A chance of showers and thunderstorms before 10am, then a chance of showers between 10am and 1pm, then a slight chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 81. North northeast wind around 15 mph, with gusts as high as 26 mph. Chance of precipitation is 30%.
Friday Night
Mostly clear, with a low around 61. North northeast wind 5 to 10 mph becoming light in the evening.
Saturday
Sunny, with a high near 82. North wind 3 to 7 mph.
Saturday Night
Clear, with a low around 63.
Sunday
Sunny, with a high near 84.
Sunday Night
Mostly clear, with a low around 66. Breezy.
Monday
Mostly sunny, with a high near 86. Breezy.
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:
4:37 pm CDT Jul 28, 2026
Forecast Valid:
4pm CDT Jul 28, 2026-6pm CDT Aug 3, 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