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.

Overcast

49°F

9°C

Humidity 86%
Wind Speed NE 13 G 24 mph
Barometer 29.73 in (1007.3 mb)
Dewpoint 45°F (7°C)
Visibility 10.00 mi
Wind Chill44°F (7°C)
Last update 13 Apr 12:53 pm CDT
Extended Forecast for

Watertown SD

Dense Fog Advisory April 13, 01:18pm until April 13, 03:00pm
Click here for hazard details and duration
Dense Fog Advisory
  •  
    Dense Fog Advisory April 13, 01:18pm until April 13, 03:00pm

    NOW until 3:00pm Mon

    Dense Fog Advisory

  • This Afternoon

    High: 61 °F

    Chance
    Showers and
    Patchy Fog

  • Tonight

    Tonight: A slight chance of showers before 8pm. Patchy fog after 5am. Otherwise, mostly cloudy, with a low around 42. Northeast wind 6 to 11 mph becoming west northwest after midnight. Winds could gust as high as 20 mph. Chance of precipitation is 20%.

    Low: 42 °F

    Slight Chance
    Showers then
    Patchy Fog

  • Tuesday

    Tuesday: Patchy fog before 9am. Otherwise, partly sunny, with a high near 63. West northwest wind 6 to 11 mph.

    High: 63 °F

    Patchy Fog
    then Partly
    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 41. North wind 5 to 7 mph becoming east after midnight.

    Low: 41 °F

    Partly Cloudy

  • Wednesday

    Wednesday: A chance of showers, mainly after 1pm. Mostly sunny, with a high near 68. East southeast wind 5 to 9 mph. Chance of precipitation is 40%.

    High: 68 °F

    Chance
    Showers

  • Wednesday Night

    Wednesday Night: A slight chance of showers before 1am. Partly cloudy, with a low around 43. East northeast wind around 8 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 8 to 16 mph, with gusts as high as 25 mph.

    High: 75 °F

    Sunny

  • Thursday Night

    Thursday Night: A slight chance of showers after 1am. Partly cloudy, with a low around 45. South southeast wind 13 to 16 mph, with gusts as high as 26 mph. Chance of precipitation is 20%.

    Low: 45 °F

    Mostly Clear
    then Slight
    Chance
    Showers

Detailed Forecast

This Afternoon
A chance of showers and thunderstorms. Patchy fog before 2pm. Otherwise, mostly cloudy, with a high near 61. East northeast wind 14 to 16 mph, with gusts as high as 31 mph. Chance of precipitation is 40%.
Tonight
A slight chance of showers before 8pm. Patchy fog after 5am. Otherwise, mostly cloudy, with a low around 42. Northeast wind 6 to 11 mph becoming west northwest after midnight. Winds could gust as high as 20 mph. Chance of precipitation is 20%.
Tuesday
Patchy fog before 9am. Otherwise, partly sunny, with a high near 63. West northwest wind 6 to 11 mph.
Tuesday Night
Partly cloudy, with a low around 41. North wind 5 to 7 mph becoming east after midnight.
Wednesday
A chance of showers, mainly after 1pm. Mostly sunny, with a high near 68. East southeast wind 5 to 9 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 around 8 mph becoming south after midnight. Chance of precipitation is 20%.
Thursday
Sunny, with a high near 75. South wind 8 to 16 mph, with gusts as high as 25 mph.
Thursday Night
A slight chance of showers after 1am. Partly cloudy, with a low around 45. South southeast wind 13 to 16 mph, with gusts as high as 26 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 54. Breezy, with a south southwest wind 16 to 24 mph becoming northwest in the morning. Winds could gust as high as 34 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 25. 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 55.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Watertown SD
 44.91°N 97.14°W (Elev. 1736 ft)
Last Update:
12:36 pm CDT Apr 13, 2026
Forecast Valid:
1pm 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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation