Hazardous Weather Conditions
Current conditions at
Watertown, Watertown Municipal Airport (KATY)
Lat: 44.9°NLon: 97.15°WElev: 1745ft.
Fog/Mist
74°F
23°C
| Humidity | 88% |
| Wind Speed | SW 8 mph |
| Barometer | 29.88 in (1010.7 mb) |
| Dewpoint | 70°F (21°C) |
| Visibility | 6.00 mi |
| Last update | 25 Jul 8:53 am CDT |
Extended Forecast for
6 Miles WSW Watertown SD
Heat Advisory July 25, 01:00pm until July 26, 09:00pm
Today

High: 96 °F
Hot
Tonight

Low: 76 °F
Slight Chance
ShowersSunday

High: 99 °F
Hot
Sunday Night

Low: 72 °F
Mostly Clear
Monday

High: 95 °F
Hot
Monday Night

Low: 71 °F
Partly Cloudy
Tuesday

High: 94 °F
Hot
Tuesday Night

Low: 70 °F
Mostly Clear
Wednesday

High: 94 °F
Hot
Detailed Forecast
Today
Mostly sunny and hot, with a high near 96. Heat index values as high as 100. Southwest wind 6 to 10 mph becoming north in the afternoon.
Tonight
A slight chance of showers between 2am and 3am. Mostly cloudy, with a low around 76. South wind 7 to 10 mph. Chance of precipitation is 20%.
Sunday
Mostly sunny and hot, with a high near 99. Heat index values as high as 106. South wind 9 to 14 mph, with gusts as high as 23 mph.
Sunday Night
Mostly clear, with a low around 72. South southwest wind 7 to 9 mph becoming north northwest after midnight.
Monday
Sunny and hot, with a high near 95. North wind 8 to 13 mph, with gusts as high as 21 mph.
Monday Night
Partly cloudy, with a low around 71. North northeast wind 5 to 8 mph becoming east after midnight.
Tuesday
Mostly sunny and hot, with a high near 94. East wind 5 to 8 mph becoming west southwest in the afternoon.
Tuesday Night
Mostly clear, with a low around 70. East wind around 7 mph becoming south southeast after midnight.
Wednesday
Mostly sunny and hot, with a high near 94. South wind 8 to 11 mph, with gusts as high as 20 mph.
Wednesday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 71. Chance of precipitation is 30%.
Thursday
A chance of showers and thunderstorms. Mostly sunny and hot, with a high near 92. Chance of precipitation is 30%.
Thursday Night
A chance of showers and thunderstorms. Mostly clear, with a low around 68. Chance of precipitation is 30%.
Friday
Sunny and hot, with a high near 91.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
6 Miles WSW Watertown SD
44.86°N 97.26°W (Elev. 1722 ft)
44.86°N 97.26°W (Elev. 1722 ft)
8:47 am CDT Jul 25, 2026
9am CDT Jul 25, 2026-6pm CDT Jul 31, 2026



