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.

Fair

23°F

-5°C

Humidity 96%
Wind Speed W 6 mph
Barometer 30.29 in (1028.2 mb)
Dewpoint 22°F (-6°C)
Visibility 10.00 mi
Wind Chill16°F (-9°C)
Last update 10 Apr 4:53 am CDT
Extended Forecast for

Watertown SD

  • Today

    Today: Patchy fog before 9am. Otherwise, sunny, with a high near 53. West wind 5 to 7 mph becoming calm.

    High: 53 °F

    Patchy Fog
    then Sunny

  • Tonight

    Tonight: Increasing clouds, with a low around 37. Light south southwest wind becoming south southeast 8 to 13 mph in the evening. Winds could gust as high as 21 mph.

    Low: 37 °F

    Increasing
    Clouds

  • Saturday

    Saturday: Showers likely, mainly between 7am and 1pm. Cloudy, with a high near 58. Breezy, with a south southeast wind 15 to 20 mph, with gusts as high as 31 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    High: 58 °F

    Showers
    Likely and
    Breezy

  • Saturday Night

    Saturday Night: A chance of showers. Mostly cloudy, with a low around 51. South southeast wind around 18 mph, with gusts as high as 30 mph. Chance of precipitation is 30%.

    Low: 51 °F

    Chance
    Showers

  • Sunday

    Sunday: A slight chance of showers. Sunny, with a high near 77. South wind 16 to 18 mph becoming west in the afternoon. Winds could gust as high as 30 mph. Chance of precipitation is 20%.

    High: 77 °F

    Slight Chance
    Showers

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 46. West wind 6 to 14 mph becoming northeast after midnight. Winds could gust as high as 22 mph.

    Low: 46 °F

    Mostly Clear

  • Monday

    Monday: A chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 70. East northeast wind 8 to 14 mph, with gusts as high as 22 mph. Chance of precipitation is 40%.

    High: 70 °F

    Mostly Cloudy
    then Chance
    Showers

  • Monday Night

    Monday Night: A chance of rain, mainly before 1am. Mostly cloudy, with a low around 45. East northeast wind 9 to 13 mph. Chance of precipitation is 40%.

    Low: 45 °F

    Chance Rain

  • Tuesday

    Tuesday: A chance of rain, then rain likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 62. Northeast wind 10 to 16 mph, with gusts as high as 24 mph. Chance of precipitation is 60%.

    High: 62 °F

    Rain Likely

Detailed Forecast

Today
Patchy fog before 9am. Otherwise, sunny, with a high near 53. West wind 5 to 7 mph becoming calm.
Tonight
Increasing clouds, with a low around 37. Light south southwest wind becoming south southeast 8 to 13 mph in the evening. Winds could gust as high as 21 mph.
Saturday
Showers likely, mainly between 7am and 1pm. Cloudy, with a high near 58. Breezy, with a south southeast wind 15 to 20 mph, with gusts as high as 31 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Saturday Night
A chance of showers. Mostly cloudy, with a low around 51. South southeast wind around 18 mph, with gusts as high as 30 mph. Chance of precipitation is 30%.
Sunday
A slight chance of showers. Sunny, with a high near 77. South wind 16 to 18 mph becoming west in the afternoon. Winds could gust as high as 30 mph. Chance of precipitation is 20%.
Sunday Night
Mostly clear, with a low around 46. West wind 6 to 14 mph becoming northeast after midnight. Winds could gust as high as 22 mph.
Monday
A chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 70. East northeast wind 8 to 14 mph, with gusts as high as 22 mph. Chance of precipitation is 40%.
Monday Night
A chance of rain, mainly before 1am. Mostly cloudy, with a low around 45. East northeast wind 9 to 13 mph. Chance of precipitation is 40%.
Tuesday
A chance of rain, then rain likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 62. Northeast wind 10 to 16 mph, with gusts as high as 24 mph. Chance of precipitation is 60%.
Tuesday Night
A chance of rain. Mostly cloudy, with a low around 40. Chance of precipitation is 40%.
Wednesday
A chance of rain. Mostly sunny, with a high near 65. Chance of precipitation is 30%.
Wednesday Night
A slight chance of rain. Partly cloudy, with a low around 41. Chance of precipitation is 20%.
Thursday
A slight chance of rain. Mostly sunny, with a high near 61. Breezy. Chance of precipitation is 20%.
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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:
4:36 am CDT Apr 10, 2026
Forecast Valid:
5am CDT Apr 10, 2026-6pm CDT Apr 16, 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