Hazardous Weather Conditions
Current conditions at
Watertown, Watertown Municipal Airport (KATY)
Lat: 44.9°NLon: 97.15°WElev: 1745ft.
Fog/Mist
42°F
6°C
| Humidity | 100% |
| Wind Speed | N 7 mph |
| Barometer | 29.75 in (1008.2 mb) |
| Dewpoint | 42°F (6°C) |
| Visibility | 6.00 mi |
| Wind Chill | 38°F (3°C) |
| Last update | 14 Apr 1:53 am CDT |
Extended Forecast for
4 Miles ESE Castlewood SD
Overnight

Low: 40 °F
Mostly Cloudy
Tuesday

High: 63 °F
Mostly Cloudy
Tuesday Night

Low: 40 °F
Mostly Cloudy
Wednesday
High: 67 °F
Partly Sunny
then Slight
Chance
ShowersWednesday Night

Low: 45 °F
Slight Chance
ShowersThursday

High: 78 °F
Sunny
Thursday Night
Low: 47 °F
Partly Cloudy
then Chance
ShowersFriday

High: 62 °F
Showers
Likely and
BreezyFriday Night
Low: 25 °F
Blustery.
Slight Chance
Rain/Snow
then Chance
Snow Showers
Detailed Forecast
Overnight
Mostly cloudy, with a low around 40. North northwest wind around 6 mph becoming south southwest.
Tuesday
Mostly cloudy, with a high near 63. Northwest wind 6 to 10 mph.
Tuesday Night
Mostly cloudy, with a low around 40. North wind 5 to 7 mph becoming light and variable after midnight.
Wednesday
A slight chance of showers after 1pm. Mostly sunny, with a high near 67. Light and variable wind becoming west southwest 5 to 10 mph in the morning. Chance of precipitation is 20%.
Wednesday Night
A slight chance of showers. Partly cloudy, with a low around 45. West southwest wind 6 to 8 mph becoming south southeast in the evening. Chance of precipitation is 20%.
Thursday
Sunny, with a high near 78. South wind 9 to 18 mph, with gusts as high as 28 mph.
Thursday Night
A chance of showers after 1am. Partly cloudy, with a low around 47. South wind 11 to 15 mph becoming east southeast after midnight. Winds could gust as high as 25 mph. Chance of precipitation is 30%.
Friday
Showers likely, mainly before 1pm. Mostly cloudy, with a high near 62. Breezy, with an east wind 16 to 23 mph becoming north northwest in the afternoon. Winds could gust as high as 36 mph. Chance of precipitation is 60%.
Friday Night
A slight chance of rain showers before 10pm, then a chance of snow showers. Mostly cloudy, with a low around 25. Blustery, with a north northwest wind 22 to 26 mph, with gusts as high as 38 mph. Chance of precipitation is 30%.
Saturday
A chance of snow showers, mainly before 1pm. Partly sunny, with a high near 39. Breezy. Chance of precipitation is 30%.
Saturday Night
Partly cloudy, with a low around 22. Blustery.
Sunday
Sunny, with a high near 49.
Sunday Night
Mostly clear, with a low around 29.
Monday
Sunny, with a high near 61.
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)
1:57 am CDT Apr 14, 2026
2am CDT Apr 14, 2026-6pm CDT Apr 20, 2026



