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.

Overcast

41°F

5°C

Humidity 86%
Wind Speed Calm
Barometer 30.33 in (1028.1 mb)
Dewpoint 37°F (3°C)
Visibility 10.00 mi
Last update 2 Oct 7:53 am CDT
Extended Forecast for

Vienna SD

  • Today

    Today: A chance of sprinkles between noon and 4pm. Partly sunny, with a high near 59. Light southeast wind becoming south southeast 8 to 13 mph in the morning.

    High: 59 °F

    Chance
    Sprinkles

  • Tonight

    Tonight: Partly cloudy, with a low around 49. Breezy, with a south wind 11 to 21 mph, with gusts as high as 32 mph.

    Low: 49 °F

    Partly Cloudy
    then Mostly
    Clear and
    Breezy

  • Saturday

    Saturday: A chance of sprinkles between 3pm and 4pm, then a slight chance of showers after 4pm. Mostly sunny, with a high near 69. Breezy, with a south wind 16 to 21 mph becoming west 10 to 15 mph in the afternoon. Winds could gust as high as 33 mph. Chance of precipitation is 20%.

    High: 69 °F

    Sunny and
    Breezy then
    Slight Chance
    Showers

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 46. North northwest wind 7 to 10 mph.

    Low: 46 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 64. Northwest wind 6 to 8 mph.

    High: 64 °F

    Sunny

  • Sunday Night

    Sunday Night: Clear, with a low around 45. Calm wind becoming southeast 5 to 8 mph after midnight.

    Low: 45 °F

    Clear

  • Monday

    Monday: Sunny, with a high near 66. Breezy, with a south southeast wind 10 to 15 mph increasing to 17 to 22 mph in the afternoon. Winds could gust as high as 33 mph.

    High: 66 °F

    Sunny then
    Sunny and
    Breezy

  • Monday Night

    Monday Night: Mostly clear, with a low around 54. Breezy, with a south wind 18 to 21 mph, with gusts as high as 33 mph.

    Low: 54 °F

    Mostly Clear
    and Breezy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 74. South wind 11 to 18 mph, with gusts as high as 28 mph.

    High: 74 °F

    Mostly Sunny

Detailed Forecast

Today
A chance of sprinkles between noon and 4pm. Partly sunny, with a high near 59. Light southeast wind becoming south southeast 8 to 13 mph in the morning.
Tonight
Partly cloudy, with a low around 49. Breezy, with a south wind 11 to 21 mph, with gusts as high as 32 mph.
Saturday
A chance of sprinkles between 3pm and 4pm, then a slight chance of showers after 4pm. Mostly sunny, with a high near 69. Breezy, with a south wind 16 to 21 mph becoming west 10 to 15 mph in the afternoon. Winds could gust as high as 33 mph. Chance of precipitation is 20%.
Saturday Night
Mostly clear, with a low around 46. North northwest wind 7 to 10 mph.
Sunday
Sunny, with a high near 64. Northwest wind 6 to 8 mph.
Sunday Night
Clear, with a low around 45. Calm wind becoming southeast 5 to 8 mph after midnight.
Monday
Sunny, with a high near 66. Breezy, with a south southeast wind 10 to 15 mph increasing to 17 to 22 mph in the afternoon. Winds could gust as high as 33 mph.
Monday Night
Mostly clear, with a low around 54. Breezy, with a south wind 18 to 21 mph, with gusts as high as 33 mph.
Tuesday
Mostly sunny, with a high near 74. South wind 11 to 18 mph, with gusts as high as 28 mph.
Tuesday Night
Partly cloudy, with a low around 55.
Wednesday
Mostly sunny, with a high near 71.
Wednesday Night
Partly cloudy, with a low around 53.
Thursday
Mostly sunny, with a high near 69.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Vienna SD
 44.71°N 97.5°W (Elev. 1801 ft)
Last Update:
8:21 am CDT Oct 2, 2026
Forecast Valid:
8am CDT Oct 2, 2026-6pm CDT Oct 8, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation