Hazardous Weather Conditions
Current conditions at
Watertown, Watertown Municipal Airport (KATY)
Lat: 44.9°NLon: 97.15°WElev: 1745ft.
Fair
93°F
34°C
| Humidity | 49% |
| Wind Speed | SW 6 mph |
| Barometer | 29.80 in (1007.4 mb) |
| Dewpoint | 71°F (22°C) |
| Visibility | 10.00 mi |
| Heat Index | 100°F (38°C) |
| Last update | 26 Jul 2:53 pm CDT |
Extended Forecast for
Watertown SD
Extreme Heat Warning July 26, 03:39pm until July 26, 09:00pm
NOW until 9:00pm Sun
Extreme Heat Warning
This Afternoon
High: 89 °F
Mostly Sunny
Tonight
Low: 73 °F
Mostly Clear
Monday
High: 90 °F
Hot
Monday Night
Low: 69 °F
Mostly Cloudy
Tuesday
High: 89 °F
Mostly Sunny
Tuesday Night
Low: 69 °F
Mostly Clear
Wednesday
High: 90 °F
Hot
Wednesday Night
Low: 71 °F
Mostly Clear
then Slight
Chance
T-storms
Detailed Forecast
This Afternoon
Mostly sunny, with a steady temperature around 89. Heat index values as high as 101. South southwest wind around 7 mph.
Tonight
Mostly clear, with a low around 73. Light and variable wind becoming north northwest 5 to 7 mph after midnight.
Monday
Mostly sunny and hot, with a high near 90. North wind around 11 mph, with gusts as high as 21 mph.
Monday Night
Mostly clear during the evening, then mostly cloudy overnight, with a low around 69. North wind 3 to 7 mph.
Tuesday
Mostly sunny, with a high near 89. Calm wind becoming south 5 to 7 mph in the morning.
Tuesday Night
Mostly clear, with a low around 69. South wind 6 to 8 mph.
Wednesday
Sunny and hot, with a high near 90. South wind 8 to 10 mph, with gusts as high as 20 mph.
Wednesday Night
A slight chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 71. South southeast wind around 9 mph. Chance of precipitation is 20%.
Thursday
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 82. South wind around 10 mph. Chance of precipitation is 70%.
Thursday Night
Showers likely and possibly a thunderstorm before 1am, then a slight chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 66. Chance of precipitation is 60%.
Friday
Mostly sunny, with a high near 81.
Friday Night
Mostly clear, with a low around 64.
Saturday
Sunny, with a high near 82.
Additional Forecasts and Information
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
Watertown SD
44.91°N 97.14°W (Elev. 1736 ft)
44.91°N 97.14°W (Elev. 1736 ft)
2:37 pm CDT Jul 26, 2026
3pm CDT Jul 26, 2026-6pm CDT Aug 1, 2026
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