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

47°F

8°C

Humidity 86%
Wind Speed Calm
Barometer 29.96 in (1014.0 mb)
Dewpoint 43°F (6°C)
Visibility 10.00 mi
Last update 7 Oct 3:53 am CDT
Extended Forecast for

Henry SD

  • Today

    Today: Sunny, with a high near 72. West northwest wind 5 to 15 mph, with gusts as high as 26 mph.

    High: 72 °F

    Sunny

  • Tonight

    Tonight: Mostly cloudy, with a low around 47. North northwest wind 5 to 9 mph becoming light after midnight.

    Low: 47 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly cloudy, then gradually becoming sunny, with a high near 66. Calm wind becoming south 5 to 7 mph in the morning.

    High: 66 °F

    Decreasing
    Clouds

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 49. Southeast wind 5 to 8 mph.

    Low: 49 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 75. South wind 8 to 13 mph, with gusts as high as 21 mph.

    High: 75 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 62. South wind 10 to 18 mph, with gusts as high as 30 mph.

    Low: 62 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 81. Breezy, with a south wind 20 to 24 mph, with gusts as high as 38 mph.

    High: 81 °F

    Sunny and
    Breezy

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 59. Breezy, with a south wind 18 to 22 mph, with gusts as high as 34 mph.

    Low: 59 °F

    Mostly Clear
    and Breezy

  • Sunday

    Sunday: Mostly sunny, with a high near 70. Breezy, with a south southeast wind 18 to 20 mph becoming north northwest in the afternoon. Winds could gust as high as 31 mph.

    High: 70 °F

    Mostly Sunny
    and Breezy
    then Mostly
    Sunny

Detailed Forecast

Today
Sunny, with a high near 72. West northwest wind 5 to 15 mph, with gusts as high as 26 mph.
Tonight
Mostly cloudy, with a low around 47. North northwest wind 5 to 9 mph becoming light after midnight.
Thursday
Mostly cloudy, then gradually becoming sunny, with a high near 66. Calm wind becoming south 5 to 7 mph in the morning.
Thursday Night
Partly cloudy, with a low around 49. Southeast wind 5 to 8 mph.
Friday
Mostly sunny, with a high near 75. South wind 8 to 13 mph, with gusts as high as 21 mph.
Friday Night
Mostly clear, with a low around 62. South wind 10 to 18 mph, with gusts as high as 30 mph.
Saturday
Sunny, with a high near 81. Breezy, with a south wind 20 to 24 mph, with gusts as high as 38 mph.
Saturday Night
Mostly clear, with a low around 59. Breezy, with a south wind 18 to 22 mph, with gusts as high as 34 mph.
Sunday
Mostly sunny, with a high near 70. Breezy, with a south southeast wind 18 to 20 mph becoming north northwest in the afternoon. Winds could gust as high as 31 mph.
Sunday Night
Mostly cloudy, with a low around 47.
Columbus Day
A chance of showers. Mostly cloudy, with a high near 56. Chance of precipitation is 40%.
Monday Night
A chance of showers. Mostly cloudy, with a low around 43. Chance of precipitation is 30%.
Tuesday
A slight chance of showers. Partly sunny, with a high near 56. Chance of precipitation is 20%.
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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:
3:21 am CDT Oct 7, 2026
Forecast Valid:
4am CDT Oct 7, 2026-6pm CDT Oct 13, 2026
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation