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.

Mostly Cloudy

41°F

5°C

Humidity 45%
Wind Speed NW 14 G 25 mph
Barometer 30.05 in (1018.9 mb)
Dewpoint 21°F (-6°C)
Visibility 10.00 mi
Wind Chill33°F (1°C)
Last update 6 May 10:53 am CDT
Extended Forecast for

Henry SD

  • Today

    Today: Partly sunny, with a high near 48. West northwest wind 11 to 16 mph, with gusts as high as 24 mph.

    High: 48 °F

    Partly Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 29. West northwest wind 6 to 11 mph becoming light and variable.

    Low: 29 °F

    Partly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 60. Light and variable wind becoming west northwest 8 to 13 mph in the morning.

    High: 60 °F

    Sunny

  • Thursday Night

    Thursday Night: Increasing clouds, with a low around 36. West northwest wind 5 to 8 mph becoming light and variable.

    Low: 36 °F

    Increasing
    Clouds

  • Friday

    Friday: Mostly sunny, with a high near 68. West northwest wind 6 to 11 mph increasing to 13 to 18 mph in the afternoon. Winds could gust as high as 26 mph.

    High: 68 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 41. West northwest wind 7 to 14 mph becoming southwest after midnight.

    Low: 41 °F

    Partly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 63. West wind 11 to 18 mph becoming north in the morning. Winds could gust as high as 28 mph.

    High: 63 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 34. North wind 12 to 17 mph decreasing to 5 to 10 mph after midnight. Winds could gust as high as 25 mph.

    Low: 34 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 59. Northwest wind 6 to 11 mph increasing to 12 to 17 mph in the afternoon.

    High: 59 °F

    Mostly Sunny

Detailed Forecast

Today
Partly sunny, with a high near 48. West northwest wind 11 to 16 mph, with gusts as high as 24 mph.
Tonight
Partly cloudy, with a low around 29. West northwest wind 6 to 11 mph becoming light and variable.
Thursday
Sunny, with a high near 60. Light and variable wind becoming west northwest 8 to 13 mph in the morning.
Thursday Night
Increasing clouds, with a low around 36. West northwest wind 5 to 8 mph becoming light and variable.
Friday
Mostly sunny, with a high near 68. West northwest wind 6 to 11 mph increasing to 13 to 18 mph in the afternoon. Winds could gust as high as 26 mph.
Friday Night
Partly cloudy, with a low around 41. West northwest wind 7 to 14 mph becoming southwest after midnight.
Saturday
Partly sunny, with a high near 63. West wind 11 to 18 mph becoming north in the morning. Winds could gust as high as 28 mph.
Saturday Night
Partly cloudy, with a low around 34. North wind 12 to 17 mph decreasing to 5 to 10 mph after midnight. Winds could gust as high as 25 mph.
Sunday
Mostly sunny, with a high near 59. Northwest wind 6 to 11 mph increasing to 12 to 17 mph in the afternoon.
Sunday Night
Partly cloudy, with a low around 34.
Monday
Mostly sunny, with a high near 70.
Monday Night
A slight chance of showers. Partly cloudy, with a low around 43. Chance of precipitation is 20%.
Tuesday
Mostly sunny, with a high near 76.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Henry SD
 44.88°N 97.48°W (Elev. 1818 ft)
Last Update:
11:36 am CDT May 6, 2026
Forecast Valid:
11am CDT May 6, 2026-6pm CDT May 12, 2026
 
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Additional Resources

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Chance of Precipitation