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.

Partly Cloudy

58°F

14°C

Humidity 87%
Wind Speed Calm
Barometer 30.04 in (1017.3 mb)
Dewpoint 54°F (12°C)
Visibility 10.00 mi
Last update 21 Jun 10:53 pm CDT
Extended Forecast for

Bryant SD

  • Tonight

    Tonight: Mostly cloudy, then gradually becoming mostly clear, with a low around 51. Calm wind becoming north northeast around 6 mph after midnight.

    Low: 51 °F

    Decreasing
    Clouds

  • Monday

    Monday: Mostly sunny, with a high near 73. East northeast wind around 7 mph becoming south in the afternoon.

    High: 73 °F

    Mostly Sunny

  • Monday Night

    Monday Night: A slight chance of showers, then a chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 56. South southeast wind 6 to 8 mph. Chance of precipitation is 40%.

    Low: 56 °F

    Chance
    Showers

  • Tuesday

    Tuesday: Showers and thunderstorms likely, mainly before 4pm, then showers likely and possibly a thunderstorm after 5pm. Mostly cloudy, with a high near 75. South wind 11 to 15 mph becoming west southwest in the afternoon. Winds could gust as high as 23 mph. Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 75 °F

    Showers
    Likely

  • Tuesday Night

    Tuesday Night: Showers likely before 7pm. Partly cloudy, with a low around 54. West wind 7 to 13 mph. Chance of precipitation is 60%.

    Low: 54 °F

    Showers
    Likely then
    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 72. Northwest wind 10 to 17 mph, with gusts as high as 26 mph.

    High: 72 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 50. North wind 6 to 14 mph.

    Low: 50 °F

    Partly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 73. North wind 5 to 8 mph.

    High: 73 °F

    Sunny

  • Thursday Night

    Thursday Night: A chance of showers after 1am. Partly cloudy, with a low around 56. East southeast wind 5 to 8 mph. Chance of precipitation is 30%.

    Low: 56 °F

    Partly Cloudy
    then Chance
    Showers

Detailed Forecast

Tonight
Mostly cloudy, then gradually becoming mostly clear, with a low around 51. Calm wind becoming north northeast around 6 mph after midnight.
Monday
Mostly sunny, with a high near 73. East northeast wind around 7 mph becoming south in the afternoon.
Monday Night
A slight chance of showers, then a chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 56. South southeast wind 6 to 8 mph. Chance of precipitation is 40%.
Tuesday
Showers and thunderstorms likely, mainly before 4pm, then showers likely and possibly a thunderstorm after 5pm. Mostly cloudy, with a high near 75. South wind 11 to 15 mph becoming west southwest in the afternoon. Winds could gust as high as 23 mph. Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tuesday Night
Showers likely before 7pm. Partly cloudy, with a low around 54. West wind 7 to 13 mph. Chance of precipitation is 60%.
Wednesday
Mostly sunny, with a high near 72. Northwest wind 10 to 17 mph, with gusts as high as 26 mph.
Wednesday Night
Partly cloudy, with a low around 50. North wind 6 to 14 mph.
Thursday
Sunny, with a high near 73. North wind 5 to 8 mph.
Thursday Night
A chance of showers after 1am. Partly cloudy, with a low around 56. East southeast wind 5 to 8 mph. Chance of precipitation is 30%.
Friday
A chance of showers, with thunderstorms also possible after 1pm. Partly sunny, with a high near 72. Chance of precipitation is 50%.
Friday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 61. Chance of precipitation is 50%.
Saturday
A chance of showers and thunderstorms. Partly sunny, with a high near 80. Breezy. Chance of precipitation is 30%.
Saturday Night
Showers and thunderstorms likely. Mostly cloudy, with a low around 65. Breezy. Chance of precipitation is 60%.
Sunday
A chance of showers and thunderstorms. Partly sunny, with a high near 81. Breezy. Chance of precipitation is 30%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Bryant SD
 44.6°N 97.47°W (Elev. 1827 ft)
Last Update:
11:26 pm CDT Jun 21, 2026
Forecast Valid:
11pm CDT Jun 21, 2026-6pm CDT Jun 28, 2026
 
Forecast Discussion
 
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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