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

20°F

-7°C

Humidity 92%
Wind Speed S 6 mph
Barometer 29.73 in (1009.6 mb)
Dewpoint 18°F (-8°C)
Visibility 10.00 mi
Wind Chill12°F (-11°C)
Last update 18 Mar 1:53 am CDT
Extended Forecast for

5 Miles NNE Watertown Municipal Airport SD

  • Overnight

    Overnight: Partly cloudy, with a low around 21. Southwest wind around 7 mph.

    Low: 21 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 46. West southwest wind 7 to 10 mph.

    High: 46 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 31. Southwest wind 5 to 8 mph becoming northwest after midnight.

    Low: 31 °F

    Mostly Cloudy

  • Thursday

    Thursday: Patchy fog before noon. Otherwise, mostly sunny, with a high near 51. North northwest wind 5 to 10 mph becoming south southwest in the afternoon.

    High: 51 °F

    Patchy Fog
    then Mostly
    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 38. West wind around 9 mph.

    Low: 38 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 65. West wind 7 to 16 mph, with gusts as high as 25 mph.

    High: 65 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 41. Northwest wind 8 to 10 mph becoming southeast in the evening.

    Low: 41 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 66. Southwest wind 9 to 17 mph becoming north northwest in the afternoon. Winds could gust as high as 26 mph.

    High: 66 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 28. North northeast wind around 16 mph, with gusts as high as 26 mph.

    Low: 28 °F

    Mostly Cloudy

Detailed Forecast

Overnight
Partly cloudy, with a low around 21. Southwest wind around 7 mph.
Wednesday
Partly sunny, with a high near 46. West southwest wind 7 to 10 mph.
Wednesday Night
Mostly cloudy, with a low around 31. Southwest wind 5 to 8 mph becoming northwest after midnight.
Thursday
Patchy fog before noon. Otherwise, mostly sunny, with a high near 51. North northwest wind 5 to 10 mph becoming south southwest in the afternoon.
Thursday Night
Partly cloudy, with a low around 38. West wind around 9 mph.
Friday
Mostly sunny, with a high near 65. West wind 7 to 16 mph, with gusts as high as 25 mph.
Friday Night
Partly cloudy, with a low around 41. Northwest wind 8 to 10 mph becoming southeast in the evening.
Saturday
Mostly sunny, with a high near 66. Southwest wind 9 to 17 mph becoming north northwest in the afternoon. Winds could gust as high as 26 mph.
Saturday Night
Mostly cloudy, with a low around 28. North northeast wind around 16 mph, with gusts as high as 26 mph.
Sunday
Partly sunny, with a high near 39.
Sunday Night
Mostly cloudy, with a low around 23.
Monday
Mostly sunny, with a high near 45.
Monday Night
Mostly cloudy, with a low around 29.
Tuesday
Mostly cloudy, with a high near 47.
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Forecast Area
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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:
1:31 am CDT Mar 18, 2026
Forecast Valid:
2am CDT Mar 18, 2026-6pm CDT Mar 24, 2026
 
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