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

64°F

18°C

Humidity 68%
Wind Speed W 9 G 22 mph
Barometer 29.96 in (1014.1 mb)
Dewpoint 53°F (12°C)
Visibility 10.00 mi
Last update 19 Jun 10:53 am CDT
Extended Forecast for

5 Miles ESE Watertown Municipal Airport SD

  • Juneteenth

    Juneteenth: Mostly sunny, with a high near 74. Breezy, with a west northwest wind 13 to 22 mph, with gusts as high as 34 mph.

    High: 74 °F

    Mostly Sunny
    and Breezy

  • Tonight

    Tonight: Mostly clear, with a low around 48. Northwest wind 11 to 16 mph becoming light north northwest after midnight. Winds could gust as high as 28 mph.

    Low: 48 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 75. Calm wind becoming north northwest around 5 mph in the afternoon.

    High: 75 °F

    Sunny

  • Saturday Night

    Saturday Night: Increasing clouds, with a low around 54. East wind 7 to 11 mph, with gusts as high as 21 mph.

    Low: 54 °F

    Increasing
    Clouds

  • Sunday

    Sunday: A chance of showers, mainly after 1pm. Cloudy, with a high near 69. East wind around 14 mph, with gusts as high as 23 mph. Chance of precipitation is 50%.

    High: 69 °F

    Slight Chance
    Showers then
    Chance
    Showers

  • Sunday Night

    Sunday Night: A slight chance of showers. Mostly cloudy, with a low around 52. North northeast wind 5 to 11 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.

    Low: 52 °F

    Slight Chance
    Showers

  • Monday

    Monday: Partly sunny, with a high near 73. Northeast wind around 6 mph becoming southeast in the afternoon.

    High: 73 °F

    Partly Sunny

  • Monday Night

    Monday Night: A slight chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 54. South southeast wind around 6 mph. Chance of precipitation is 60%.

    Low: 54 °F

    Slight Chance
    T-storms then
    Showers
    Likely

  • Tuesday

    Tuesday: A chance of showers, then showers likely and possibly a thunderstorm after 1pm. Mostly sunny, with a high near 72. Southwest wind 7 to 15 mph becoming west northwest in the afternoon. Winds could gust as high as 25 mph. Chance of precipitation is 60%.

    High: 72 °F

    Showers
    Likely

Detailed Forecast

Juneteenth
Mostly sunny, with a high near 74. Breezy, with a west northwest wind 13 to 22 mph, with gusts as high as 34 mph.
Tonight
Mostly clear, with a low around 48. Northwest wind 11 to 16 mph becoming light north northwest after midnight. Winds could gust as high as 28 mph.
Saturday
Sunny, with a high near 75. Calm wind becoming north northwest around 5 mph in the afternoon.
Saturday Night
Increasing clouds, with a low around 54. East wind 7 to 11 mph, with gusts as high as 21 mph.
Sunday
A chance of showers, mainly after 1pm. Cloudy, with a high near 69. East wind around 14 mph, with gusts as high as 23 mph. Chance of precipitation is 50%.
Sunday Night
A slight chance of showers. Mostly cloudy, with a low around 52. North northeast wind 5 to 11 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.
Monday
Partly sunny, with a high near 73. Northeast wind around 6 mph becoming southeast in the afternoon.
Monday Night
A slight chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 54. South southeast wind around 6 mph. Chance of precipitation is 60%.
Tuesday
A chance of showers, then showers likely and possibly a thunderstorm after 1pm. Mostly sunny, with a high near 72. Southwest wind 7 to 15 mph becoming west northwest in the afternoon. Winds could gust as high as 25 mph. Chance of precipitation is 60%.
Tuesday Night
A slight chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 51. Chance of precipitation is 20%.
Wednesday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 72. Chance of precipitation is 20%.
Wednesday Night
Partly cloudy, with a low around 51.
Thursday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 75. Chance of precipitation is 20%.
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles ESE Watertown Municipal Airport SD
 44.91°N 97.05°W (Elev. 1795 ft)
Last Update:
11:36 am CDT Jun 19, 2026
Forecast Valid:
11am CDT Jun 19, 2026-6pm CDT Jun 25, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation