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

44°F

7°C

Humidity 76%
Wind Speed Calm
Barometer 30.28 in (1025.7 mb)
Dewpoint 37°F (3°C)
Visibility 10.00 mi
Last update 5 Oct 2:53 am CDT
Extended Forecast for

Watertown Municipal Airport SD

  • Overnight

    Overnight: Partly cloudy, with a low around 41. Southeast wind around 7 mph.

    Low: 41 °F

    Partly Cloudy

  • Monday

    Monday: Partly sunny, then gradually becoming sunny, with a high near 71. Breezy, with a southeast wind 8 to 13 mph increasing to 16 to 21 mph in the afternoon. Winds could gust as high as 33 mph.

    High: 71 °F

    Mostly Sunny
    then Sunny
    and Breezy

  • Monday Night

    Monday Night: Mostly clear, with a low around 53. South wind 10 to 17 mph, with gusts as high as 31 mph.

    Low: 53 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 77. Southwest wind 7 to 11 mph becoming west northwest in the afternoon. Winds could gust as high as 20 mph.

    High: 77 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 47. North northwest wind around 6 mph.

    Low: 47 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 69. North northwest wind 6 to 11 mph, with gusts as high as 21 mph.

    High: 69 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 45. Northwest wind around 6 mph becoming calm in the evening.

    Low: 45 °F

    Partly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 66. North wind 3 to 8 mph.

    High: 66 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 43. North northeast wind around 5 mph becoming light and variable.

    Low: 43 °F

    Partly Cloudy

Detailed Forecast

Overnight
Partly cloudy, with a low around 41. Southeast wind around 7 mph.
Monday
Partly sunny, then gradually becoming sunny, with a high near 71. Breezy, with a southeast wind 8 to 13 mph increasing to 16 to 21 mph in the afternoon. Winds could gust as high as 33 mph.
Monday Night
Mostly clear, with a low around 53. South wind 10 to 17 mph, with gusts as high as 31 mph.
Tuesday
Sunny, with a high near 77. Southwest wind 7 to 11 mph becoming west northwest in the afternoon. Winds could gust as high as 20 mph.
Tuesday Night
Mostly clear, with a low around 47. North northwest wind around 6 mph.
Wednesday
Sunny, with a high near 69. North northwest wind 6 to 11 mph, with gusts as high as 21 mph.
Wednesday Night
Partly cloudy, with a low around 45. Northwest wind around 6 mph becoming calm in the evening.
Thursday
Partly sunny, with a high near 66. North wind 3 to 8 mph.
Thursday Night
Partly cloudy, with a low around 43. North northeast wind around 5 mph becoming light and variable.
Friday
Mostly sunny, with a high near 67.
Friday Night
Partly cloudy, with a low around 52.
Saturday
Mostly sunny, with a high near 74. Breezy.
Saturday Night
Partly cloudy, with a low around 53. Breezy.
Sunday
Partly sunny, with a high near 65. Breezy.
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ABOUT THIS FORECAST

 
Point Forecast:
Watertown Municipal Airport SD
 44.91°N 97.14°W (Elev. 1736 ft)
Last Update:
2:21 am CDT Oct 5, 2026
Forecast Valid:
3am CDT Oct 5, 2026-6pm CDT Oct 11, 2026
 
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