Hazardous Weather Conditions
Current conditions at
Watertown, Watertown Municipal Airport (KATY)
Lat: 44.9°NLon: 97.15°WElev: 1745ft.
Fog/Mist
68°F
20°C
| Humidity | 96% |
| Wind Speed | S 7 mph |
| Barometer | 29.84 in (1009.6 mb) |
| Dewpoint | 67°F (19°C) |
| Visibility | 2.50 mi |
| Last update | 25 Jul 6:53 am CDT |
Extended Forecast for
4 Miles ESE Watertown Municipal Airport SD
Heat Advisory July 25, 01:00pm until July 26, 09:00pm
Today

High: 95 °F
Hot
Tonight

Low: 75 °F
Slight Chance
ShowersSunday

High: 98 °F
Hot
Sunday Night

Low: 72 °F
Mostly Clear
Monday

High: 94 °F
Hot
Monday Night

Low: 71 °F
Partly Cloudy
Tuesday
High: 92 °F
Mostly Sunny
then Slight
Chance
T-stormsTuesday Night

Low: 69 °F
Mostly Clear
Wednesday

High: 93 °F
Hot
Detailed Forecast
Today
Mostly sunny and hot, with a high near 95. South southwest wind 5 to 8 mph becoming north in the afternoon.
Tonight
A slight chance of showers between 2am and 3am. Mostly cloudy, with a low around 75. South southeast wind 6 to 9 mph. Chance of precipitation is 20%.
Sunday
Mostly sunny and hot, with a high near 98. Heat index values as high as 105. 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 6 to 8 mph becoming north northwest after midnight.
Monday
Sunny and hot, with a high near 94. North wind 7 to 11 mph, with gusts as high as 21 mph.
Monday Night
Partly cloudy, with a low around 71. North northeast wind 5 to 7 mph becoming east after midnight.
Tuesday
A slight chance of showers and thunderstorms after 1pm. Sunny and hot, with a high near 92. Light and variable wind becoming southeast 5 to 7 mph in the morning. Chance of precipitation is 20%.
Tuesday Night
Mostly clear, with a low around 69. East southeast wind 5 to 7 mph.
Wednesday
Mostly sunny and hot, with a high near 93. South wind 7 to 11 mph, with gusts as high as 20 mph.
Wednesday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 70. Chance of precipitation is 30%.
Thursday
A chance of showers and thunderstorms. Mostly sunny and hot, with a high near 91. 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, with a high near 89.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
4 Miles ESE Watertown Municipal Airport SD
44.89°N 97.08°W (Elev. 1739 ft)
44.89°N 97.08°W (Elev. 1739 ft)
7:16 am CDT Jul 25, 2026
7am CDT Jul 25, 2026-6pm CDT Jul 31, 2026



