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.

Partly Cloudy

36°F

2°C

Humidity 55%
Wind Speed NE 9 mph
Barometer 30.28 in (1027.2 mb)
Dewpoint 21°F (-6°C)
Visibility 10.00 mi
Wind Chill29°F (-2°C)
Last update 19 Apr 11:53 am CDT
Extended Forecast for

5 Miles NNE Watertown Municipal Airport SD

  • This Afternoon

    This Afternoon: Sunny, with a high near 44. North wind 7 to 11 mph.

    High: 44 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 26. North northeast wind 5 to 9 mph becoming south southeast after midnight.

    Low: 26 °F

    Mostly Clear

  • Monday

    Monday: Mostly sunny, with a high near 67. Breezy, with a south southwest wind 13 to 18 mph increasing to 20 to 25 mph in the afternoon. Winds could gust as high as 36 mph.

    High: 67 °F

    Mostly Sunny
    and Breezy

  • Monday Night

    Monday Night: Mostly clear, with a low around 39. Southwest wind 6 to 13 mph becoming north after midnight.

    Low: 39 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 71. Northeast wind around 7 mph.

    High: 71 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 50. South southeast wind 8 to 11 mph, with gusts as high as 21 mph.

    Low: 50 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 84. Breezy, with a south wind 11 to 16 mph increasing to 17 to 22 mph in the afternoon. Winds could gust as high as 33 mph.

    High: 84 °F

    Mostly Sunny
    then Mostly
    Sunny and
    Breezy

  • Wednesday Night

    Wednesday Night: A slight chance of showers, then a chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 57. Breezy, with a south wind 21 to 24 mph, with gusts as high as 37 mph. Chance of precipitation is 40%.

    Low: 57 °F

    Chance
    Showers and
    Breezy

  • Thursday

    Thursday: A chance of showers. Partly sunny, with a high near 74. Breezy, with a south southwest wind 21 to 29 mph, with gusts as high as 38 mph. Chance of precipitation is 40%.

    High: 74 °F

    Chance
    Showers and
    Breezy

Detailed Forecast

This Afternoon
Sunny, with a high near 44. North wind 7 to 11 mph.
Tonight
Mostly clear, with a low around 26. North northeast wind 5 to 9 mph becoming south southeast after midnight.
Monday
Mostly sunny, with a high near 67. Breezy, with a south southwest wind 13 to 18 mph increasing to 20 to 25 mph in the afternoon. Winds could gust as high as 36 mph.
Monday Night
Mostly clear, with a low around 39. Southwest wind 6 to 13 mph becoming north after midnight.
Tuesday
Sunny, with a high near 71. Northeast wind around 7 mph.
Tuesday Night
Mostly clear, with a low around 50. South southeast wind 8 to 11 mph, with gusts as high as 21 mph.
Wednesday
Mostly sunny, with a high near 84. Breezy, with a south wind 11 to 16 mph increasing to 17 to 22 mph in the afternoon. Winds could gust as high as 33 mph.
Wednesday Night
A slight chance of showers, then a chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 57. Breezy, with a south wind 21 to 24 mph, with gusts as high as 37 mph. Chance of precipitation is 40%.
Thursday
A chance of showers. Partly sunny, with a high near 74. Breezy, with a south southwest wind 21 to 29 mph, with gusts as high as 38 mph. Chance of precipitation is 40%.
Thursday Night
A chance of rain showers before 4am, then a slight chance of rain and snow showers. Partly cloudy, with a low around 35. Breezy. Chance of precipitation is 30%.
Friday
A slight chance of rain and snow showers. Mostly sunny, with a high near 52. Breezy. Chance of precipitation is 20%.
Friday Night
Partly cloudy, with a low around 30. Blustery.
Saturday
Mostly sunny, with a high near 52.
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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:
12:01 pm CDT Apr 19, 2026
Forecast Valid:
12pm CDT Apr 19, 2026-6pm CDT Apr 25, 2026
 
Forecast Discussion
 
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Additional Resources

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