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

53°F

12°C

Humidity 86%
Wind Speed Calm
Barometer 30.03 in (1016.6 mb)
Dewpoint 49°F (9°C)
Visibility 10.00 mi
Last update 20 Jun 2:53 am CDT
Extended Forecast for

3 Miles ESE Watertown Municipal Airport SD

  • Overnight

    Overnight: Partly cloudy, with a low around 48. Light west northwest wind.

    Low: 48 °F

    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 76. Calm wind becoming northwest around 5 mph.

    High: 76 °F

    Sunny

  • Saturday Night

    Saturday Night: Increasing clouds, with a low around 54. East wind 5 to 10 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%.

    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

Detailed Forecast

Overnight
Partly cloudy, with a low around 48. Light west northwest wind.
Saturday
Sunny, with a high near 76. Calm wind becoming northwest around 5 mph.
Saturday Night
Increasing clouds, with a low around 54. East wind 5 to 10 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%.
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.
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%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles ESE Watertown Municipal Airport SD
 44.91°N 97.11°W (Elev. 1752 ft)
Last Update:
2:36 am CDT Jun 20, 2026
Forecast Valid:
3am CDT Jun 20, 2026-6pm CDT Jun 26, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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