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Current conditions at
Watertown, Watertown Municipal Airport (KATY)
Lat: 44.9°NLon: 97.15°WElev: 1745ft.
Fair
43°F
6°C
| Humidity | 89% |
| Wind Speed | SE 5 mph |
| Barometer | 29.77 in (1008.3 mb) |
| Dewpoint | 40°F (4°C) |
| Visibility | 10.00 mi |
| Wind Chill | 40°F (4°C) |
| Last update | 21 Mar 3:53 am CDT |
Extended Forecast for
4 Miles ESE Castlewood SD
Today

High: 78 °F
Sunny
Tonight
Low: 32 °F
Breezy.
Partly Cloudy
then Slight
Chance RainSunday

High: 43 °F
Decreasing
CloudsSunday Night

Low: 25 °F
Mostly Clear
Monday
High: 51 °F
Mostly Sunny
then Slight
Chance RainMonday Night

Low: 36 °F
Mostly Cloudy
Tuesday

High: 56 °F
Mostly Cloudy
Tuesday Night

Low: 35 °F
Mostly Cloudy
Wednesday

High: 62 °F
Partly Sunny
Detailed Forecast
Today
Sunny, with a high near 78. South wind 6 to 11 mph becoming west northwest in the morning.
Tonight
A slight chance of rain between 1am and 3am. Increasing clouds, with a low around 32. Breezy, with a north northeast wind 9 to 14 mph increasing to 16 to 21 mph in the evening. Winds could gust as high as 32 mph. Chance of precipitation is 20%.
Sunday
Mostly cloudy, then gradually becoming sunny, with a high near 43. North wind 13 to 17 mph, with gusts as high as 26 mph.
Sunday Night
Mostly clear, with a low around 25. North northwest wind 5 to 9 mph becoming east southeast after midnight.
Monday
A slight chance of rain after 1pm. Partly sunny, with a high near 51. South wind 6 to 16 mph, with gusts as high as 25 mph. Chance of precipitation is 20%.
Monday Night
Mostly cloudy, with a low around 36. South wind around 14 mph, with gusts as high as 24 mph.
Tuesday
Mostly cloudy, with a high near 56. South wind 10 to 14 mph becoming east in the afternoon. Winds could gust as high as 22 mph.
Tuesday Night
Mostly cloudy, with a low around 35. East wind around 11 mph, with gusts as high as 20 mph.
Wednesday
Partly sunny, with a high near 62. East southeast wind 10 to 15 mph becoming west southwest in the afternoon. Winds could gust as high as 23 mph.
Wednesday Night
A slight chance of rain after 1am. Mostly cloudy, with a low around 35. Chance of precipitation is 20%.
Thursday
Partly sunny, with a high near 45. Breezy.
Thursday Night
Mostly cloudy, with a low around 21.
Friday
Partly sunny, with a high near 43.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
4 Miles ESE Castlewood SD
44.72°N 96.96°W (Elev. 1749 ft)
44.72°N 96.96°W (Elev. 1749 ft)
4:36 am CDT Mar 21, 2026
4am CDT Mar 21, 2026-6pm CDT Mar 27, 2026


