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

59°F

15°C

Humidity 83%
Wind Speed Calm
Barometer 30.16 in (1020.9 mb)
Dewpoint 54°F (12°C)
Visibility 10.00 mi
Last update 22 Aug 11:53 pm CDT
Extended Forecast for

4 Miles NE Henry SD

  • Overnight

    Overnight: Mostly cloudy, with a low around 55. Calm wind becoming southeast around 5 mph.

    Low: 55 °F

    Mostly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 81. South southeast wind 7 to 11 mph, with gusts as high as 20 mph.

    High: 81 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: A slight chance of showers and thunderstorms, then a chance of showers after 4am. Mostly cloudy, with a low around 61. South southeast wind 8 to 10 mph. Chance of precipitation is 30%.

    Low: 61 °F

    Mostly Cloudy
    then Chance
    Showers

  • Monday

    Monday: A slight chance of showers before 7am. Partly sunny, with a high near 81. South wind 10 to 14 mph, with gusts as high as 22 mph. Chance of precipitation is 10%.

    High: 81 °F

    Slight Chance
    Showers then
    Mostly Sunny

  • Monday Night

    Monday Night: A slight chance of showers and thunderstorms between 1am and 4am, then a slight chance of showers after 4am. Partly cloudy, with a low around 63. South wind 7 to 9 mph. Chance of precipitation is 20%.

    Low: 63 °F

    Partly Cloudy
    then Slight
    Chance
    T-storms

  • Tuesday

    Tuesday: Sunny, with a high near 84. West wind 7 to 12 mph increasing to 13 to 18 mph in the afternoon. Winds could gust as high as 28 mph.

    High: 84 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 60. West northwest wind 8 to 15 mph, with gusts as high as 23 mph.

    Low: 60 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 79. Northwest wind 9 to 17 mph, with gusts as high as 26 mph.

    High: 79 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 57. North northwest wind 6 to 11 mph becoming light north after midnight.

    Low: 57 °F

    Mostly Clear

Detailed Forecast

Overnight
Mostly cloudy, with a low around 55. Calm wind becoming southeast around 5 mph.
Sunday
Mostly sunny, with a high near 81. South southeast wind 7 to 11 mph, with gusts as high as 20 mph.
Sunday Night
A slight chance of showers and thunderstorms, then a chance of showers after 4am. Mostly cloudy, with a low around 61. South southeast wind 8 to 10 mph. Chance of precipitation is 30%.
Monday
A slight chance of showers before 7am. Partly sunny, with a high near 81. South wind 10 to 14 mph, with gusts as high as 22 mph. Chance of precipitation is 10%.
Monday Night
A slight chance of showers and thunderstorms between 1am and 4am, then a slight chance of showers after 4am. Partly cloudy, with a low around 63. South wind 7 to 9 mph. Chance of precipitation is 20%.
Tuesday
Sunny, with a high near 84. West wind 7 to 12 mph increasing to 13 to 18 mph in the afternoon. Winds could gust as high as 28 mph.
Tuesday Night
Mostly clear, with a low around 60. West northwest wind 8 to 15 mph, with gusts as high as 23 mph.
Wednesday
Sunny, with a high near 79. Northwest wind 9 to 17 mph, with gusts as high as 26 mph.
Wednesday Night
Mostly clear, with a low around 57. North northwest wind 6 to 11 mph becoming light north after midnight.
Thursday
Sunny, with a high near 80.
Thursday Night
Partly cloudy, with a low around 58.
Friday
Mostly sunny, with a high near 81.
Friday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 61. Chance of precipitation is 40%.
Saturday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 81. Chance of precipitation is 20%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles NE Henry SD
 44.93°N 97.42°W (Elev. 1755 ft)
Last Update:
12:06 am CDT Aug 23, 2026
Forecast Valid:
12am CDT Aug 23, 2026-6pm CDT Aug 29, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation