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Hazardous Weather Conditions
Current conditions at
Watertown, Watertown Municipal Airport (KATY)
Lat: 44.9°NLon: 97.15°WElev: 1745ft.
Fair
36°F
2°C
| Humidity | 97% |
| Wind Speed | SE 3 mph |
| Barometer | 30.00 in (1017.2 mb) |
| Dewpoint | 35°F (2°C) |
| Visibility | 7.00 mi |
| Last update | 19 Mar 8:53 am CDT |
Extended Forecast for
4 Miles ESE Castlewood SD
Today
High: 65 °F
Areas Fog
then SunnyTonight

Low: 37 °F
Partly Cloudy
Friday

High: 65 °F
Mostly Sunny
Friday Night

Low: 41 °F
Partly Cloudy
Saturday

High: 73 °F
Mostly Sunny
Saturday Night

Low: 33 °F
Mostly Cloudy
Sunday

High: 42 °F
Partly Sunny
Sunday Night

Low: 22 °F
Mostly Clear
Monday

High: 46 °F
Partly Sunny
Detailed Forecast
Today
Areas of fog before 11am. Otherwise, mostly sunny, with a high near 65. Light and variable wind becoming southwest 9 to 14 mph in the afternoon.
Tonight
Partly cloudy, with a low around 37. West southwest wind 8 to 10 mph becoming northwest after midnight.
Friday
Mostly sunny, with a high near 65. West wind 7 to 13 mph.
Friday Night
Partly cloudy, with a low around 41. West wind 6 to 9 mph becoming south after midnight.
Saturday
Mostly sunny, with a high near 73. South southwest wind 9 to 14 mph.
Saturday Night
Mostly cloudy, with a low around 33. North northeast wind 11 to 18 mph, with gusts as high as 28 mph.
Sunday
Partly sunny, with a high near 42. North wind around 18 mph, with gusts as high as 28 mph.
Sunday Night
Mostly clear, with a low around 22. North wind 6 to 13 mph becoming east northeast after midnight.
Monday
Partly sunny, with a high near 46. South wind 7 to 17 mph, with gusts as high as 26 mph.
Monday Night
Mostly cloudy, with a low around 31.
Tuesday
Mostly cloudy, with a high near 52.
Tuesday Night
Mostly cloudy, with a low around 37.
Wednesday
Partly sunny, with a high near 65.
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)
8:36 am CDT Mar 19, 2026
9am CDT Mar 19, 2026-6pm CDT Mar 25, 2026



