Current conditions at
Watertown, Watertown Municipal Airport (KATY)
Lat: 44.9°NLon: 97.15°WElev: 1745ft.
Fog/Mist
60°F
16°C
| Humidity | 100% |
| Wind Speed | S 8 mph |
| Barometer | 30.19 in (1022.1 mb) |
| Dewpoint | 60°F (16°C) |
| Visibility | 2.50 mi |
| Last update | 24 Sep 11:53 pm CDT |
Extended Forecast for
4 Miles W Castlewood SD
Overnight

Low: 58 °F
Slight Chance
Drizzle and
Areas FogFriday

High: 64 °F
Areas Fog
Friday Night
Low: 57 °F
Chance
Drizzle then
ShowersSaturday

High: 66 °F
Showers
LikelySaturday Night

Low: 58 °F
Mostly Cloudy
Sunday

High: 71 °F
Partly Sunny
Sunday Night

Low: 58 °F
Mostly Cloudy
Monday
High: 69 °F
Mostly Cloudy
then Chance
Showers and
BreezyMonday Night

Low: 58 °F
Showers
Detailed Forecast
Overnight
A slight chance of drizzle before 4am. Areas of fog. Otherwise, cloudy, with a low around 58. South wind 7 to 9 mph.
Friday
Areas of fog. Otherwise, mostly cloudy, with a high near 64. South southeast wind 7 to 14 mph, with gusts as high as 23 mph.
Friday Night
Showers likely, then showers and possibly a thunderstorm after 4am. Low around 57. Southeast wind 11 to 15 mph, with gusts as high as 24 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Saturday
Showers likely and possibly a thunderstorm before 7am, then a chance of showers between 7am and 1pm, then a chance of rain after 1pm. Cloudy, with a high near 66. South southeast wind 11 to 16 mph, with gusts as high as 26 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Saturday Night
Mostly cloudy, with a low around 58. South southeast wind 3 to 8 mph.
Sunday
Partly sunny, with a high near 71. Southeast wind 3 to 8 mph.
Sunday Night
Mostly cloudy, with a low around 58. Southeast wind 8 to 10 mph.
Monday
A chance of showers after 1pm. Mostly cloudy, with a high near 69. Breezy, with a south southeast wind 13 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 30%.
Monday Night
Showers and possibly a thunderstorm. Low around 58. South wind 13 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 80%.
Tuesday
Showers likely, mainly before 1pm. Mostly cloudy, with a high near 61. Chance of precipitation is 60%.
Tuesday Night
A slight chance of showers. Mostly cloudy, with a low around 48. Chance of precipitation is 20%.
Wednesday
A slight chance of showers. Mostly sunny, with a high near 60. Chance of precipitation is 20%.
Wednesday Night
A slight chance of showers. Mostly clear, with a low around 49. Chance of precipitation is 20%.
Thursday
A slight chance of showers. Mostly sunny, with a high near 60. Chance of precipitation is 20%.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
4 Miles W Castlewood SD
44.74°N 97.11°W (Elev. 1762 ft)
44.74°N 97.11°W (Elev. 1762 ft)
11:21 pm CDT Sep 24, 2026
12am CDT Sep 25, 2026-6pm CDT Oct 1, 2026


