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

53°F

12°C

Humidity 43%
Wind Speed SE 9 mph
Barometer 29.98 in (1016.4 mb)
Dewpoint 31°F (-1°C)
Visibility 10.00 mi
Wind Chill50°F (10°C)
Last update 24 Mar 6:53 pm CDT
Extended Forecast for

Henry SD

  • Tonight

    Tonight: Partly cloudy, with a low around 37. South southeast wind 8 to 10 mph.

    Low: 37 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 71. South wind 6 to 13 mph becoming west in the afternoon.

    High: 71 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: A slight chance of rain after 1am. Mostly cloudy, with a low around 37. West wind 6 to 14 mph becoming east northeast after midnight. Winds could gust as high as 22 mph. Chance of precipitation is 20%.

    Low: 37 °F

    Mostly Cloudy
    then Slight
    Chance Rain

  • Thursday

    Thursday: Partly sunny, with a high near 45. Breezy, with a north wind 18 to 23 mph, with gusts as high as 32 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.

    Low: 16 °F

    Partly Cloudy
    and Blustery
    then Mostly
    Clear

  • Friday

    Friday: Sunny, with a high near 42. West northwest wind 7 to 13 mph.

    High: 42 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 27. West wind 9 to 13 mph becoming south after midnight. Winds could gust as high as 21 mph.

    Low: 27 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 58. South wind 14 to 16 mph.

    High: 58 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 35. East southeast wind 11 to 14 mph, with gusts as high as 22 mph.

    Low: 35 °F

    Partly Cloudy

Detailed Forecast

Tonight
Partly cloudy, with a low around 37. South southeast wind 8 to 10 mph.
Wednesday
Mostly sunny, with a high near 71. South wind 6 to 13 mph becoming west in the afternoon.
Wednesday Night
A slight chance of rain after 1am. Mostly cloudy, with a low around 37. West wind 6 to 14 mph becoming east northeast after midnight. Winds could gust as high as 22 mph. Chance of precipitation is 20%.
Thursday
Partly sunny, with a high near 45. Breezy, with a north wind 18 to 23 mph, with gusts as high as 32 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.
Friday
Sunny, with a high near 42. West northwest wind 7 to 13 mph.
Friday Night
Mostly clear, with a low around 27. West wind 9 to 13 mph becoming south after midnight. Winds could gust as high as 21 mph.
Saturday
Mostly sunny, with a high near 58. South wind 14 to 16 mph.
Saturday Night
Partly cloudy, with a low around 35. East southeast wind 11 to 14 mph, with gusts as high as 22 mph.
Sunday
Mostly sunny, with a high near 66.
Sunday Night
Mostly clear, with a low around 39.
Monday
Partly sunny, with a high near 66.
Monday Night
A slight chance of rain and snow. Partly cloudy, with a low around 39. Chance of precipitation is 20%.
Tuesday
A slight chance of rain. Partly sunny, with a high near 61. Breezy. Chance of precipitation is 20%.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Henry SD
 44.88°N 97.45°W (Elev. 1801 ft)
Last Update:
6:36 pm CDT Mar 24, 2026
Forecast Valid:
7pm CDT Mar 24, 2026-6pm CDT Mar 31, 2026
 
Forecast Discussion
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

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