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

64°F

18°C

Humidity 41%
Wind Speed NW 12 G 23 mph
Barometer 30.16 in (1021.0 mb)
Dewpoint 40°F (4°C)
Visibility 10.00 mi
Last update 14 Jun 11:53 am CDT
Extended Forecast for

5 Miles NNE Watertown Municipal Airport SD

  • This Afternoon

    This Afternoon: 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 47. Northwest wind 6 to 11 mph becoming light and variable.

    Low: 47 °F

    Mostly Clear

  • Monday

    Monday: A chance of showers and thunderstorms, mainly after 5pm. Partly sunny, with a high near 76. South southwest wind 7 to 17 mph becoming west in the afternoon. Winds could gust as high as 29 mph. Chance of precipitation is 30%.

    High: 76 °F

    Mostly Cloudy
    then Chance
    T-storms

  • Monday Night

    Monday Night: A chance of showers and thunderstorms, mainly before 7pm. Mostly cloudy, with a low around 49. West northwest wind 9 to 13 mph, with gusts as high as 23 mph. Chance of precipitation is 30%.

    Low: 49 °F

    Chance
    T-storms then
    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 72. Northwest wind 8 to 13 mph, with gusts as high as 23 mph.

    High: 72 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: A slight chance of showers, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 54. West wind 5 to 9 mph becoming south southeast in the evening. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 54 °F

    Slight Chance
    Showers 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 11 to 16 mph becoming north northwest 17 to 22 mph in the afternoon. Winds could gust as high as 33 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 16 to 21 mph decreasing to 8 to 13 mph after midnight. Winds could gust as high as 31 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. Northwest wind 8 to 13 mph, with gusts as high as 23 mph. Chance of precipitation is 30%.

    High: 71 °F

    Partly Sunny
    then Chance
    T-storms

Detailed Forecast

This Afternoon
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 47. Northwest wind 6 to 11 mph becoming light and variable.
Monday
A chance of showers and thunderstorms, mainly after 5pm. Partly sunny, with a high near 76. South southwest wind 7 to 17 mph becoming west in the afternoon. Winds could gust as high as 29 mph. Chance of precipitation is 30%.
Monday Night
A chance of showers and thunderstorms, mainly before 7pm. Mostly cloudy, with a low around 49. West northwest wind 9 to 13 mph, with gusts as high as 23 mph. Chance of precipitation is 30%.
Tuesday
Mostly sunny, with a high near 72. Northwest wind 8 to 13 mph, with gusts as high as 23 mph.
Tuesday Night
A slight chance of showers, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 54. West wind 5 to 9 mph becoming south southeast in the evening. 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 11 to 16 mph becoming north northwest 17 to 22 mph in the afternoon. Winds could gust as high as 33 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 16 to 21 mph decreasing to 8 to 13 mph after midnight. Winds could gust as high as 31 mph. Chance of precipitation is 20%.
Thursday
A chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 71. Northwest wind 8 to 13 mph, with gusts as high as 23 mph. Chance of precipitation is 30%.
Thursday Night
Mostly clear, with a low around 50.
Juneteenth
Sunny, with a high near 76.
Friday Night
Partly cloudy, with a low around 53.
Saturday
Mostly sunny, with a high near 77.
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles NNE Watertown Municipal Airport SD
 44.97°N 97.12°W (Elev. 1745 ft)
Last Update:
11:51 am CDT Jun 14, 2026
Forecast Valid:
12pm CDT Jun 14, 2026-6pm CDT Jun 20, 2026
 
Forecast Discussion
 
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Additional Resources

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