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 81%
Wind Speed N 3 mph
Barometer 29.85 in (1010.1 mb)
Dewpoint 60°F (16°C)
Visibility 10.00 mi
Last update 17 Jun 10:53 pm CDT
Extended Forecast for

Vienna SD

  • Tonight

    Tonight: Mostly cloudy, with a low around 58. North northeast wind around 6 mph.

    Low: 58 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Cloudy through mid morning, then gradual clearing, with a high near 77. North wind 6 to 11 mph.

    High: 77 °F

    Gradual
    Clearing

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 58. Northwest wind 6 to 10 mph becoming south southwest after midnight.

    Low: 58 °F

    Mostly Clear

  • Juneteenth

    Juneteenth: Sunny, with a high near 86. South southwest wind 11 to 15 mph, with gusts as high as 23 mph.

    High: 86 °F

    Sunny

  • Thursday Night

    Thursday Night: A chance of showers and thunderstorms before 4am, then a slight chance of showers. Partly cloudy, with a low around 66. South wind around 14 mph, with gusts as high as 23 mph. Chance of precipitation is 40%.

    Low: 66 °F

    Chance
    T-storms

  • Friday

    Friday: Mostly sunny and hot, with a high near 90. South southeast wind 13 to 18 mph, with gusts as high as 28 mph.

    High: 90 °F

    Hot

  • Friday Night

    Friday Night: A slight chance of showers and thunderstorms before 1am. Mostly clear, with a low around 69. South southeast wind 13 to 16 mph, with gusts as high as 25 mph. Chance of precipitation is 20%.

    Low: 69 °F

    Slight Chance
    T-storms

  • Saturday

    Saturday: Sunny and hot, with a high near 95. South southeast wind 14 to 18 mph, with gusts as high as 28 mph.

    High: 95 °F

    Hot

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 74. Breezy, with a south wind 16 to 20 mph, with gusts as high as 30 mph.

    Low: 74 °F

    Mostly Clear
    then Mostly
    Clear and
    Breezy

Detailed Forecast

Tonight
Mostly cloudy, with a low around 58. North northeast wind around 6 mph.
Wednesday
Cloudy through mid morning, then gradual clearing, with a high near 77. North wind 6 to 11 mph.
Wednesday Night
Mostly clear, with a low around 58. Northwest wind 6 to 10 mph becoming south southwest after midnight.
Juneteenth
Sunny, with a high near 86. South southwest wind 11 to 15 mph, with gusts as high as 23 mph.
Thursday Night
A chance of showers and thunderstorms before 4am, then a slight chance of showers. Partly cloudy, with a low around 66. South wind around 14 mph, with gusts as high as 23 mph. Chance of precipitation is 40%.
Friday
Mostly sunny and hot, with a high near 90. South southeast wind 13 to 18 mph, with gusts as high as 28 mph.
Friday Night
A slight chance of showers and thunderstorms before 1am. Mostly clear, with a low around 69. South southeast wind 13 to 16 mph, with gusts as high as 25 mph. Chance of precipitation is 20%.
Saturday
Sunny and hot, with a high near 95. South southeast wind 14 to 18 mph, with gusts as high as 28 mph.
Saturday Night
Mostly clear, with a low around 74. Breezy, with a south wind 16 to 20 mph, with gusts as high as 30 mph.
Sunday
Sunny and hot, with a high near 90. Breezy.
Sunday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 62. Chance of precipitation is 50%.
Monday
A chance of showers and thunderstorms. Mostly cloudy, with a high near 74. Chance of precipitation is 40%.
Monday Night
A chance of showers. Mostly cloudy, with a low around 55. Chance of precipitation is 50%.
Tuesday
A chance of showers and thunderstorms. Mostly cloudy, with a high near 66. Chance of precipitation is 50%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Vienna SD
 44.71°N 97.5°W (Elev. 1801 ft)
Last Update:
10:49 pm CDT Jun 17, 2025
Forecast Valid:
11pm CDT Jun 17, 2025-6pm CDT Jun 24, 2025
 
Forecast Discussion
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation