Hazardous Weather Conditions
Current conditions at
Watertown, Watertown Municipal Airport (KATY)
Lat: 44.9°NLon: 97.15°WElev: 1745ft.
Fair
78°F
26°C
| Humidity | 22% |
| Wind Speed | NW 16 G 26 mph |
| Barometer | 29.72 in (1005.8 mb) |
| Dewpoint | 36°F (2°C) |
| Visibility | 10.00 mi |
| Heat Index | 78°F (26°C) |
| Last update | 15 May 5:53 pm CDT |
Extended Forecast for
Clark SD
Red Flag Warning May 15, 06:10pm until May 15, 07:00pm
NOW until 7:00pm Fri
Red Flag Warning
Tonight
Low: 45 °F
Mostly Clear
and Breezy
then Mostly
ClearSaturday

High: 76 °F
Sunny
Saturday Night
Low: 49 °F
Breezy.
Partly Cloudy
then Showers
LikelySunday

High: 70 °F
Showers and
BreezySunday Night
Low: 41 °F
Breezy.
Chance
T-storms then
Chance
ShowersMonday
High: 54 °F
Breezy.
Chance
Showers then
ShowersMonday Night

Low: 36 °F
Showers and
BreezyTuesday

High: 50 °F
Slight Chance
Showers and
Breezy
Detailed Forecast
Tonight
Mostly clear, with a low around 45. Breezy, with a northwest wind 16 to 21 mph decreasing to 7 to 12 mph after midnight. Winds could gust as high as 30 mph.
Saturday
Sunny, with a high near 76. Northwest wind 7 to 9 mph becoming north northeast in the afternoon.
Saturday Night
A chance of showers and thunderstorms between 4am and 5am, then showers likely and possibly a thunderstorm after 5am. Increasing clouds, with a low around 49. Breezy, with an east wind 15 to 20 mph increasing to 23 to 28 mph after midnight. Winds could gust as high as 39 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Sunday
Showers and possibly a thunderstorm before 10am, then showers between 10am and 1pm, then showers and possibly a thunderstorm after 1pm. High near 70. Breezy, with an east southeast wind 23 to 28 mph decreasing to 16 to 21 mph in the afternoon. Winds could gust as high as 38 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.
Sunday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 41. Breezy, with a north northwest wind 16 to 20 mph. Chance of precipitation is 50%.
Monday
A chance of showers, then showers and possibly a thunderstorm after 1pm. High near 54. Breezy, with a north wind 22 to 24 mph, with gusts as high as 34 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Monday Night
Showers, mainly before 1am. Low around 36. Breezy, with a north wind around 24 mph, with gusts as high as 34 mph. Chance of precipitation is 90%.
Tuesday
A slight chance of showers before 1pm. Cloudy, with a high near 50. Breezy, with a west northwest wind 25 to 28 mph, with gusts as high as 39 mph. Chance of precipitation is 20%.
Tuesday Night
Partly cloudy, with a low around 33. Breezy, with a north northwest wind 17 to 22 mph decreasing to 8 to 13 mph after midnight.
Wednesday
Mostly sunny, with a high near 60.
Wednesday Night
Partly cloudy, with a low around 39.
Thursday
Partly sunny, with a high near 67.
Thursday Night
A slight chance of showers. Partly cloudy, with a low around 44. Chance of precipitation is 20%.
Friday
A slight chance of showers. Partly sunny, with a high near 71. Breezy. Chance of precipitation is 20%.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
Clark SD
44.9°N 97.75°W (Elev. 1811 ft)
44.9°N 97.75°W (Elev. 1811 ft)
5:36 pm CDT May 15, 2026
6pm CDT May 15, 2026-6pm CDT May 22, 2026



