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.

Fair

50°F

10°C

Humidity 74%
Wind Speed SW 10 mph
Barometer 29.83 in (1010.9 mb)
Dewpoint 42°F (6°C)
Visibility 10.00 mi
Wind Chill46°F (8°C)
Last update 19 Mar 9:53 pm CDT
Extended Forecast for

6 Miles WSW Watertown SD

  • Tonight

    Tonight: Partly cloudy, with a low around 36. Southwest wind 7 to 9 mph becoming north northwest after midnight.

    Low: 36 °F

    Partly Cloudy

  • Friday

    Friday: Patchy fog between 8am and 9am. Otherwise, mostly sunny, with a high near 66. North northwest wind 5 to 11 mph becoming west southwest in the morning. Winds could gust as high as 20 mph.

    High: 66 °F

    Patchy Fog
    then Mostly
    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 41. West wind 6 to 8 mph becoming south after midnight.

    Low: 41 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 75. Southwest wind 9 to 13 mph, with gusts as high as 21 mph.

    High: 75 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 34. North northeast wind 11 to 18 mph, with gusts as high as 28 mph.

    Low: 34 °F

    Mostly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 45. North northwest wind 16 to 18 mph, with gusts as high as 28 mph.

    High: 45 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 24. North northwest wind 6 to 13 mph becoming east northeast after midnight.

    Low: 24 °F

    Mostly Clear

  • Monday

    Monday: Partly sunny, with a high near 50. South wind 7 to 17 mph, with gusts as high as 28 mph.

    High: 50 °F

    Partly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 33. South southeast wind 10 to 14 mph, with gusts as high as 22 mph.

    Low: 33 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Partly cloudy, with a low around 36. Southwest wind 7 to 9 mph becoming north northwest after midnight.
Friday
Patchy fog between 8am and 9am. Otherwise, mostly sunny, with a high near 66. North northwest wind 5 to 11 mph becoming west southwest in the morning. Winds could gust as high as 20 mph.
Friday Night
Partly cloudy, with a low around 41. West wind 6 to 8 mph becoming south after midnight.
Saturday
Mostly sunny, with a high near 75. Southwest wind 9 to 13 mph, with gusts as high as 21 mph.
Saturday Night
Mostly cloudy, with a low around 34. North northeast wind 11 to 18 mph, with gusts as high as 28 mph.
Sunday
Partly sunny, with a high near 45. North northwest wind 16 to 18 mph, with gusts as high as 28 mph.
Sunday Night
Mostly clear, with a low around 24. North northwest wind 6 to 13 mph becoming east northeast after midnight.
Monday
Partly sunny, with a high near 50. South wind 7 to 17 mph, with gusts as high as 28 mph.
Monday Night
Mostly cloudy, with a low around 33. South southeast wind 10 to 14 mph, with gusts as high as 22 mph.
Tuesday
Partly sunny, with a high near 52.
Tuesday Night
Mostly cloudy, with a low around 33.
Wednesday
Mostly cloudy, with a high near 62.
Wednesday Night
A slight chance of rain and snow. Mostly cloudy, with a low around 32. Chance of precipitation is 20%.
Thursday
Mostly sunny, with a high near 43. Breezy.
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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:
9:36 pm CDT Mar 19, 2026
Forecast Valid:
10pm CDT Mar 19, 2026-6pm CDT Mar 26, 2026
 
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Additional Resources

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Chance of Precipitation