National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Watertown, Watertown Municipal Airport (KATY)

Lat: 44.9°NLon: 97.15°WElev: 1745ft.

A Few Clouds

62°F

17°C

Humidity 70%
Wind Speed NW 5 mph
Barometer 30.07 in (1018.0 mb)
Dewpoint 52°F (11°C)
Visibility 10.00 mi
Last update 24 Jun 12:53 am CDT
Extended Forecast for

Vienna SD

  • Overnight

    Overnight: Partly cloudy, with a low around 55. West northwest wind around 8 mph.

    Low: 55 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 73. West northwest wind 10 to 18 mph, with gusts as high as 26 mph.

    High: 73 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 51. Northwest wind 6 to 15 mph.

    Low: 51 °F

    Mostly Clear

  • Thursday

    Thursday: Increasing clouds, with a high near 75. North northwest wind 6 to 8 mph becoming east northeast in the afternoon.

    High: 75 °F

    Increasing
    Clouds

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 56. East wind 6 to 9 mph.

    Low: 56 °F

    Mostly Cloudy

  • Friday

    Friday: A chance of showers, mainly before 1pm. Mostly cloudy, with a high near 77. Southeast wind 10 to 15 mph, with gusts as high as 23 mph. Chance of precipitation is 30%.

    High: 77 °F

    Chance
    Showers

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 62. Breezy, with a southeast wind 15 to 20 mph, with gusts as high as 28 mph.

    Low: 62 °F

    Mostly Cloudy
    then Mostly
    Cloudy and
    Breezy

  • Saturday

    Saturday: A slight chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 83. Breezy, with a south southeast wind 21 to 28 mph, with gusts as high as 37 mph. Chance of precipitation is 20%.

    High: 83 °F

    Breezy.
    Partly Sunny
    then Slight
    Chance
    T-storms

  • Saturday Night

    Saturday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 69. Breezy, with a southeast wind 20 to 22 mph, with gusts as high as 31 mph. Chance of precipitation is 50%.

    Low: 69 °F

    Chance
    T-storms and
    Breezy

Detailed Forecast

Overnight
Partly cloudy, with a low around 55. West northwest wind around 8 mph.
Wednesday
Sunny, with a high near 73. West northwest wind 10 to 18 mph, with gusts as high as 26 mph.
Wednesday Night
Mostly clear, with a low around 51. Northwest wind 6 to 15 mph.
Thursday
Increasing clouds, with a high near 75. North northwest wind 6 to 8 mph becoming east northeast in the afternoon.
Thursday Night
Mostly cloudy, with a low around 56. East wind 6 to 9 mph.
Friday
A chance of showers, mainly before 1pm. Mostly cloudy, with a high near 77. Southeast wind 10 to 15 mph, with gusts as high as 23 mph. Chance of precipitation is 30%.
Friday Night
Mostly cloudy, with a low around 62. Breezy, with a southeast wind 15 to 20 mph, with gusts as high as 28 mph.
Saturday
A slight chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 83. Breezy, with a south southeast wind 21 to 28 mph, with gusts as high as 37 mph. Chance of precipitation is 20%.
Saturday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 69. Breezy, with a southeast wind 20 to 22 mph, with gusts as high as 31 mph. Chance of precipitation is 50%.
Sunday
A slight chance of showers and thunderstorms. Mostly sunny and hot, with a high near 90. Breezy. Chance of precipitation is 20%.
Sunday Night
A chance of showers and thunderstorms. Mostly clear, with a low around 67. Chance of precipitation is 30%.
Monday
A chance of showers and thunderstorms. Mostly sunny, with a high near 87. Chance of precipitation is 30%.
Monday Night
A slight chance of showers and thunderstorms. Mostly clear, with a low around 64. Chance of precipitation is 20%.
Tuesday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 88. Chance of precipitation is 20%.
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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:
12:36 am CDT Jun 24, 2026
Forecast Valid:
1am CDT Jun 24, 2026-6pm CDT Jun 30, 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