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.

Fog/Mist

43°F

6°C

Humidity 97%
Wind Speed NE 14 G 21 mph
Barometer 29.76 in (1008.2 mb)
Dewpoint 42°F (6°C)
Visibility 2.50 mi
Wind Chill36°F (2°C)
Last update 13 Apr 9:53 am CDT
Extended Forecast for

6 Miles WSW Watertown SD

Dense Fog Advisory April 13, 10:11am until April 13, 11:00am
Click here for hazard details and duration
...
  •  
    Dense Fog Advisory April 13, 10:11am until April 13, 11:00am

    NOW until 11:00am Mon

    Dense Fog Advisory

  • Today

    High: 65 °F

    Chance
    Showers and
    Areas Dense
    Fog

  • Tonight

    Tonight: A chance of showers, mainly before 9pm. Partly cloudy, with a low around 41. Northeast wind 6 to 11 mph becoming northwest after midnight. Winds could gust as high as 20 mph. Chance of precipitation is 30%.

    Low: 41 °F

    Chance
    Showers then
    Partly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 63. West northwest wind 6 to 10 mph.

    High: 63 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 40. North wind 6 to 8 mph becoming east after midnight.

    Low: 40 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: A chance of showers, mainly after 1pm. Mostly sunny, with a high near 67. East southeast wind 6 to 10 mph. Chance of precipitation is 40%.

    High: 67 °F

    Chance
    Showers

  • Wednesday Night

    Wednesday Night: A slight chance of showers before 1am. Partly cloudy, with a low around 43. East northeast wind 7 to 9 mph becoming south after midnight. Chance of precipitation is 20%.

    Low: 43 °F

    Slight Chance
    Showers

  • Thursday

    Thursday: Sunny, with a high near 75. South wind 9 to 16 mph, with gusts as high as 26 mph.

    High: 75 °F

    Sunny

  • Thursday Night

    Thursday Night: A slight chance of showers after 1am. Partly cloudy, with a low around 43. South southeast wind 13 to 16 mph, with gusts as high as 28 mph. Chance of precipitation is 20%.

    Low: 43 °F

    Mostly Clear
    then Slight
    Chance
    Showers

Detailed Forecast

Today
A chance of showers before 1pm, then a chance of showers and thunderstorms between 1pm and 4pm, then a chance of showers after 4pm. Areas of dense fog before noon. Otherwise, mostly cloudy, with a high near 65. East wind 14 to 17 mph, with gusts as high as 26 mph. Chance of precipitation is 50%.
Tonight
A chance of showers, mainly before 9pm. Partly cloudy, with a low around 41. Northeast wind 6 to 11 mph becoming northwest after midnight. Winds could gust as high as 20 mph. Chance of precipitation is 30%.
Tuesday
Partly sunny, with a high near 63. West northwest wind 6 to 10 mph.
Tuesday Night
Mostly cloudy, with a low around 40. North wind 6 to 8 mph becoming east after midnight.
Wednesday
A chance of showers, mainly after 1pm. Mostly sunny, with a high near 67. East southeast wind 6 to 10 mph. Chance of precipitation is 40%.
Wednesday Night
A slight chance of showers before 1am. Partly cloudy, with a low around 43. East northeast wind 7 to 9 mph becoming south after midnight. Chance of precipitation is 20%.
Thursday
Sunny, with a high near 75. South wind 9 to 16 mph, with gusts as high as 26 mph.
Thursday Night
A slight chance of showers after 1am. Partly cloudy, with a low around 43. South southeast wind 13 to 16 mph, with gusts as high as 28 mph. Chance of precipitation is 20%.
Friday
A chance of rain showers before 4pm, then a chance of rain and snow showers. Mostly cloudy, with a high near 55. Breezy, with a west southwest wind 16 to 25 mph becoming northwest in the morning. Winds could gust as high as 37 mph. Chance of precipitation is 40%.
Friday Night
A chance of rain and snow showers before 10pm, then a slight chance of snow showers. Mostly cloudy, with a low around 24. Blustery. Chance of precipitation is 30%.
Saturday
A slight chance of snow showers. Partly sunny, with a high near 44. Breezy. Chance of precipitation is 20%.
Saturday Night
Partly cloudy, with a low around 24.
Sunday
Sunny, with a high near 56.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
6 Miles WSW Watertown SD
 44.88°N 97.26°W (Elev. 1749 ft)
Last Update:
9:37 am CDT Apr 13, 2026
Forecast Valid:
10am CDT Apr 13, 2026-6pm CDT Apr 19, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation