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.

A Few Clouds

59°F

15°C

Humidity 49%
Wind Speed NW 12 G 22 mph
Barometer 30.18 in (1022.0 mb)
Dewpoint 40°F (4°C)
Visibility 10.00 mi
Last update 14 Jun 9:53 am CDT
Extended Forecast for

Henry SD

  • Today

    Today: Sunny, with a high near 70. Northwest wind 13 to 15 mph, with gusts as high as 23 mph.

    High: 70 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 48. North northwest wind 5 to 13 mph becoming west southwest after midnight.

    Low: 48 °F

    Mostly Clear

  • Monday

    Monday: A slight chance of showers and thunderstorms after 4pm. Partly sunny, with a high near 76. Breezy, with a west southwest wind 9 to 14 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 29 mph. Chance of precipitation is 20%.

    High: 76 °F

    Mostly Cloudy
    then Slight
    Chance
    T-storms and
    Breezy

  • Monday Night

    Monday Night: A chance of showers and thunderstorms before 10pm, then a slight chance of showers between 10pm and 1am. Cloudy, then gradually becoming partly cloudy, with a low around 49. West northwest wind 10 to 15 mph, with gusts as high as 23 mph. Chance of precipitation is 30%.

    Low: 49 °F

    Chance
    T-storms then
    Slight Chance
    Showers

  • Tuesday

    Tuesday: Mostly sunny, with a high near 73. Northwest wind 10 to 14 mph, with gusts as high as 23 mph.

    High: 73 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 56. West wind 6 to 13 mph becoming south southeast after midnight. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 56 °F

    Mostly Cloudy
    then Showers
    Likely

  • Wednesday

    Wednesday: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 73. Breezy, with a south southeast wind 15 to 20 mph becoming northwest 21 to 26 mph in the afternoon. Winds could gust as high as 38 mph. Chance of precipitation is 70%.

    High: 73 °F

    Chance
    T-storms then
    Showers
    Likely and
    Breezy

  • Wednesday Night

    Wednesday Night: A slight chance of showers and thunderstorms before 1am. Mostly cloudy, with a low around 50. Breezy, with a northwest wind 19 to 24 mph decreasing to 11 to 16 mph after midnight. Winds could gust as high as 32 mph. Chance of precipitation is 20%.

    Low: 50 °F

    Slight Chance
    T-storms and
    Breezy

  • Thursday

    Thursday: A chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 71. West northwest wind 10 to 15 mph, with gusts as high as 24 mph. Chance of precipitation is 30%.

    High: 71 °F

    Partly Sunny
    then Chance
    T-storms

Detailed Forecast

Today
Sunny, with a high near 70. Northwest wind 13 to 15 mph, with gusts as high as 23 mph.
Tonight
Mostly clear, with a low around 48. North northwest wind 5 to 13 mph becoming west southwest after midnight.
Monday
A slight chance of showers and thunderstorms after 4pm. Partly sunny, with a high near 76. Breezy, with a west southwest wind 9 to 14 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 29 mph. Chance of precipitation is 20%.
Monday Night
A chance of showers and thunderstorms before 10pm, then a slight chance of showers between 10pm and 1am. Cloudy, then gradually becoming partly cloudy, with a low around 49. West northwest wind 10 to 15 mph, with gusts as high as 23 mph. Chance of precipitation is 30%.
Tuesday
Mostly sunny, with a high near 73. Northwest wind 10 to 14 mph, with gusts as high as 23 mph.
Tuesday Night
Showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 56. West wind 6 to 13 mph becoming south southeast after midnight. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Wednesday
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 73. Breezy, with a south southeast wind 15 to 20 mph becoming northwest 21 to 26 mph in the afternoon. Winds could gust as high as 38 mph. Chance of precipitation is 70%.
Wednesday Night
A slight chance of showers and thunderstorms before 1am. Mostly cloudy, with a low around 50. Breezy, with a northwest wind 19 to 24 mph decreasing to 11 to 16 mph after midnight. Winds could gust as high as 32 mph. Chance of precipitation is 20%.
Thursday
A chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 71. West northwest wind 10 to 15 mph, with gusts as high as 24 mph. Chance of precipitation is 30%.
Thursday Night
Mostly clear, with a low around 51.
Juneteenth
Sunny, with a high near 76.
Friday Night
Mostly clear, with a low around 54.
Saturday
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:
9:36 am CDT Jun 14, 2026
Forecast Valid:
10am CDT Jun 14, 2026-6pm CDT Jun 20, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation