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

50°F

10°C

Humidity 68%
Wind Speed SW 9 mph
Barometer 29.85 in (1012.6 mb)
Dewpoint 40°F (4°C)
Visibility 10.00 mi
Wind Chill46°F (8°C)
Last update 18 Mar 2:53 pm CDT
Extended Forecast for

5 Miles NNE Watertown Municipal Airport SD

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 53. West wind around 11 mph.

    High: 53 °F

    Mostly Sunny

  • Tonight

    Tonight: Patchy fog before 11pm, then patchy fog after midnight. Otherwise, mostly cloudy, with a low around 30. West southwest wind 5 to 8 mph becoming north after midnight.

    Low: 30 °F

    Patchy Fog

  • Thursday

    Thursday: Patchy fog before 11am. Otherwise, partly sunny, with a high near 54. Light and variable wind becoming south southwest 5 to 10 mph in the morning.

    High: 54 °F

    Patchy Fog
    then Mostly
    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 37. South southwest wind around 9 mph becoming west after midnight.

    Low: 37 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 63. West northwest wind 7 to 15 mph.

    High: 63 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 38. Northwest wind around 9 mph becoming east southeast in the evening.

    Low: 38 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 69. South southwest wind 9 to 15 mph becoming northwest in the afternoon. Winds could gust as high as 25 mph.

    High: 69 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 29. North northeast wind around 16 mph, with gusts as high as 26 mph.

    Low: 29 °F

    Mostly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 40. North wind 15 to 17 mph, with gusts as high as 25 mph.

    High: 40 °F

    Partly Sunny

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 53. West wind around 11 mph.
Tonight
Patchy fog before 11pm, then patchy fog after midnight. Otherwise, mostly cloudy, with a low around 30. West southwest wind 5 to 8 mph becoming north after midnight.
Thursday
Patchy fog before 11am. Otherwise, partly sunny, with a high near 54. Light and variable wind becoming south southwest 5 to 10 mph in the morning.
Thursday Night
Partly cloudy, with a low around 37. South southwest wind around 9 mph becoming west after midnight.
Friday
Mostly sunny, with a high near 63. West northwest wind 7 to 15 mph.
Friday Night
Partly cloudy, with a low around 38. Northwest wind around 9 mph becoming east southeast in the evening.
Saturday
Mostly sunny, with a high near 69. South southwest wind 9 to 15 mph becoming northwest in the afternoon. Winds could gust as high as 25 mph.
Saturday Night
Mostly cloudy, with a low around 29. North northeast wind around 16 mph, with gusts as high as 26 mph.
Sunday
Partly sunny, with a high near 40. North wind 15 to 17 mph, with gusts as high as 25 mph.
Sunday Night
Partly cloudy, with a low around 22.
Monday
Mostly sunny, with a high near 47.
Monday Night
Mostly cloudy, with a low around 30.
Tuesday
Mostly cloudy, with a high near 51.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
5 Miles NNE Watertown Municipal Airport SD
 44.97°N 97.12°W (Elev. 1745 ft)
Last Update:
2:36 pm CDT Mar 18, 2026
Forecast Valid:
3pm CDT Mar 18, 2026-6pm CDT Mar 24, 2026
 
Forecast Discussion
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation