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

37°F

3°C

Humidity 59%
Wind Speed SE 6 mph
Barometer 30.09 in (1020.3 mb)
Dewpoint 24°F (-4°C)
Visibility 10.00 mi
Wind Chill32°F (0°C)
Last update 24 Mar 9:53 am CDT
Extended Forecast for

Watertown SD

  • Today

    Today: Cloudy, then gradually becoming mostly sunny, with a high near 54. Southeast wind 6 to 10 mph.

    High: 54 °F

    Decreasing
    Clouds

  • Tonight

    Tonight: Partly cloudy, with a low around 34. South wind 6 to 8 mph.

    Low: 34 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 70. South southwest wind 5 to 10 mph.

    High: 70 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 37. West southwest wind 5 to 15 mph becoming northeast after midnight. Winds could gust as high as 25 mph.

    Low: 37 °F

    Mostly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 45. Breezy, with a north wind 18 to 23 mph, with gusts as high as 34 mph.

    High: 45 °F

    Partly Sunny
    and Breezy

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 16. Blustery, with a north wind 15 to 20 mph decreasing to 9 to 14 mph after midnight. Winds could gust as high as 28 mph.

    Low: 16 °F

    Mostly Cloudy
    and Blustery
    then Partly
    Cloudy

  • Friday

    Friday: Sunny, with a high near 40. West northwest wind 6 to 11 mph.

    High: 40 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 23. West northwest wind 7 to 9 mph becoming south southwest after midnight.

    Low: 23 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 56. South southwest wind 10 to 16 mph.

    High: 56 °F

    Sunny

Detailed Forecast

Today
Cloudy, then gradually becoming mostly sunny, with a high near 54. Southeast wind 6 to 10 mph.
Tonight
Partly cloudy, with a low around 34. South wind 6 to 8 mph.
Wednesday
Mostly sunny, with a high near 70. South southwest wind 5 to 10 mph.
Wednesday Night
Mostly cloudy, with a low around 37. West southwest wind 5 to 15 mph becoming northeast after midnight. Winds could gust as high as 25 mph.
Thursday
Partly sunny, with a high near 45. Breezy, with a north wind 18 to 23 mph, with gusts as high as 34 mph.
Thursday Night
Partly cloudy, with a low around 16. Blustery, with a north wind 15 to 20 mph decreasing to 9 to 14 mph after midnight. Winds could gust as high as 28 mph.
Friday
Sunny, with a high near 40. West northwest wind 6 to 11 mph.
Friday Night
Mostly clear, with a low around 23. West northwest wind 7 to 9 mph becoming south southwest after midnight.
Saturday
Sunny, with a high near 56. South southwest wind 10 to 16 mph.
Saturday Night
Partly cloudy, with a low around 34.
Sunday
Mostly sunny, with a high near 62.
Sunday Night
Partly cloudy, with a low around 38.
Monday
Partly sunny, with a high near 64.
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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:
9:36 am CDT Mar 24, 2026
Forecast Valid:
9am CDT Mar 24, 2026-6pm CDT Mar 30, 2026
 
Forecast Discussion
 
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Additional Resources

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