Current conditions at
Watertown, Watertown Municipal Airport (KATY)
Lat: 44.9°NLon: 97.15°WElev: 1745ft.
Fair
56°F
13°C
| Humidity | 60% |
| Wind Speed | SE 12 mph |
| Barometer | 30.05 in (1017.6 mb) |
| Dewpoint | 42°F (6°C) |
| Visibility | 10.00 mi |
| Last update | 21 May 10:53 pm CDT |
Extended Forecast for
Watertown SD
Tonight

Low: 43 °F
Increasing
CloudsFriday

High: 58 °F
Showers and
BreezyFriday Night
Low: 43 °F
Chance
Showers then
Mostly CloudySaturday

High: 68 °F
Gradual
ClearingSaturday Night

Low: 45 °F
Partly Cloudy
Sunday

High: 79 °F
Sunny
Sunday Night

Low: 53 °F
Mostly Clear
Memorial Day

High: 88 °F
Sunny
Monday Night

Low: 58 °F
Mostly Clear
Detailed Forecast
Tonight
Increasing clouds, with a low around 43. East southeast wind 8 to 11 mph, with gusts as high as 21 mph.
Friday
Showers, with thunderstorms also possible after 1pm. High near 58. Breezy, with an east southeast wind 16 to 21 mph, with gusts as high as 34 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.
Friday Night
A chance of showers before 10pm. Mostly cloudy, with a low around 43. South wind 11 to 13 mph becoming west after midnight. Winds could gust as high as 22 mph. Chance of precipitation is 30%.
Saturday
Cloudy through mid morning, then gradual clearing, with a high near 68. West wind around 11 mph.
Saturday Night
Partly cloudy, with a low around 45. West wind 5 to 7 mph becoming calm.
Sunday
Sunny, with a high near 79. South wind around 9 mph.
Sunday Night
Mostly clear, with a low around 53. South southeast wind 6 to 9 mph.
Memorial Day
Sunny, with a high near 88. South wind around 11 mph.
Monday Night
Mostly clear, with a low around 58. South southeast wind 9 to 13 mph, with gusts as high as 23 mph.
Tuesday
Sunny, with a high near 87.
Tuesday Night
Mostly clear, with a low around 56.
Wednesday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 83. Chance of precipitation is 20%.
Wednesday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 55. Chance of precipitation is 20%.
Thursday
A chance of showers and thunderstorms. Partly sunny, with a high near 80. Chance of precipitation is 30%.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
Watertown SD
44.91°N 97.14°W (Elev. 1736 ft)
44.91°N 97.14°W (Elev. 1736 ft)
10:51 pm CDT May 21, 2026
11pm CDT May 21, 2026-6pm CDT May 28, 2026


