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Hazardous Weather Conditions
Current conditions at
Watertown, Watertown Municipal Airport (KATY)
Lat: 44.9°NLon: 97.15°WElev: 1745ft.
Fair
89°F
32°C
| Humidity | 61% |
| Wind Speed | S 18 G 28 mph |
| Barometer | 29.53 in (998.2 mb) |
| Dewpoint | 74°F (23°C) |
| Visibility | 10.00 mi |
| Heat Index | 98°F (37°C) |
| Last update | 29 Jun 5:53 pm CDT |
Extended Forecast for
5 Miles W Castlewood SD
Severe T-storm Watch until June 30, 12:00am
Heat Advisory June 29, 06:56pm until June 29, 08:00pm
NOW: Multiple hazards in effect
Click HERE for Details
Tonight
Low: 64 °F
Slight Chance
Showers then
Partly CloudyTuesday

High: 85 °F
Sunny
Tuesday Night
Low: 64 °F
Mostly Clear
then Chance
ShowersWednesday

High: 85 °F
Showers
LikelyWednesday Night

Low: 64 °F
Mostly Clear
Thursday
High: 90 °F
Mostly Sunny
then Chance
T-stormsThursday Night

Low: 67 °F
Showers
LikelyFriday

High: 90 °F
Hot
Detailed Forecast
Tonight
A slight chance of showers before 7pm. Partly cloudy, with a low around 64. South wind 9 to 13 mph, with gusts as high as 22 mph. Chance of precipitation is 20%.
Tuesday
Sunny, with a high near 85. West southwest wind 9 to 13 mph, with gusts as high as 22 mph.
Tuesday Night
A slight chance of showers before 4am, then a chance of showers after 5am. Increasing clouds, with a low around 64. West southwest wind 5 to 7 mph becoming southeast after midnight. Chance of precipitation is 30%.
Wednesday
Showers likely and possibly a thunderstorm before 1pm, then a chance of showers and thunderstorms after 1pm. Cloudy, then gradually becoming mostly sunny, with a high near 85. South southwest wind 7 to 10 mph. Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Wednesday Night
Mostly clear, with a low around 64. West wind around 5 mph becoming calm in the evening.
Thursday
A chance of showers and thunderstorms after 1pm. Mostly sunny and hot, with a high near 90. South southeast wind 5 to 13 mph, with gusts as high as 21 mph. Chance of precipitation is 30%.
Thursday Night
Showers likely and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 67. Southeast wind 6 to 10 mph becoming south southwest after midnight. Chance of precipitation is 70%.
Friday
Mostly sunny and hot, with a high near 90. Southeast wind 7 to 9 mph.
Friday Night
Showers likely and possibly a thunderstorm. Partly cloudy, with a low around 69. East southeast wind around 10 mph. Chance of precipitation is 60%.
Independence Day
A chance of showers and thunderstorms. Partly sunny, with a high near 88. Chance of precipitation is 40%.
Saturday Night
Showers and thunderstorms likely. Partly cloudy, with a low around 65. Chance of precipitation is 60%.
Sunday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 83. Chance of precipitation is 20%.
Sunday Night
Mostly clear, with a low around 62.
Monday
Sunny, with a high near 85.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
5 Miles W Castlewood SD
44.74°N 97.14°W (Elev. 1801 ft)
44.74°N 97.14°W (Elev. 1801 ft)
6:31 pm CDT Jun 29, 2026
6pm CDT Jun 29, 2026-6pm CDT Jul 6, 2026



