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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 | 97% |
| Wind Speed | SE 7 mph |
| Barometer | 29.59 in (1000.8 mb) |
| Dewpoint | 73°F (23°C) |
| Visibility | 5.00 mi |
| Last update | 29 Jun 3:53 am CDT |
Extended Forecast for
5 Miles WSW Watertown SD
Heat Advisory June 29, 12:00pm until June 29, 08:00pm
Dense Fog Advisory until June 29, 09:00am
NOW until 9:00am Mon

Dense Fog Advisory
Overnight

Low: 73 °F
Patchy Fog
Monday
High: 95 °F
Breezy.
Patchy Fog
then SunnyMonday Night
Low: 64 °F
Clear and
Breezy then
Mostly ClearTuesday

High: 87 °F
Sunny
Tuesday Night
Low: 64 °F
Mostly Clear
then Chance
ShowersWednesday
High: 89 °F
Chance
T-storms then
Showers
LikelyWednesday Night

Low: 65 °F
Chance
T-stormsThursday
High: 92 °F
Mostly Sunny
then Chance
Showers
Detailed Forecast
Overnight
Patchy fog. Otherwise, mostly cloudy, with a steady temperature around 73. East southeast wind around 7 mph.
Monday
Patchy fog before 9am. Otherwise, mostly cloudy, then gradually becoming sunny and hot, with a high near 95. Heat index values as high as 100. Breezy, with a southeast wind 10 to 15 mph becoming south 18 to 23 mph in the afternoon. Winds could gust as high as 34 mph.
Monday Night
Mostly clear, with a low around 64. Breezy, with a southwest wind 10 to 20 mph, with gusts as high as 31 mph.
Tuesday
Sunny, with a high near 87. West southwest wind 9 to 15 mph, with gusts as high as 25 mph.
Tuesday Night
A chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 64. West southwest wind 5 to 9 mph becoming east southeast after midnight. Chance of precipitation is 40%.
Wednesday
A chance of showers and thunderstorms before 1pm, then showers likely between 1pm and 4pm, then showers likely and possibly a thunderstorm after 4pm. Partly sunny, with a high near 89. South wind 8 to 11 mph, with gusts as high as 21 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Wednesday Night
A chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 65. West wind 5 to 8 mph becoming east southeast after midnight. Chance of precipitation is 40%.
Thursday
A chance of showers and thunderstorms after 1pm. Mostly sunny and hot, with a high near 92. Light southeast wind becoming south southeast 9 to 14 mph in the morning. Winds could gust as high as 22 mph. Chance of precipitation is 30%.
Thursday Night
Showers and thunderstorms likely, mainly before 1am. Partly cloudy, with a low around 68. Southeast wind 8 to 16 mph, with gusts as high as 28 mph. Chance of precipitation is 70%.
Friday
Mostly sunny, with a high near 89.
Friday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 70. Chance of precipitation is 40%.
Independence Day
A chance of showers and thunderstorms. Mostly sunny, with a high near 87. Chance of precipitation is 40%.
Saturday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 66. Chance of precipitation is 50%.
Sunday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 81. Chance of precipitation is 20%.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
5 Miles WSW Watertown SD
44.88°N 97.26°W (Elev. 1749 ft)
44.88°N 97.26°W (Elev. 1749 ft)
3:36 am CDT Jun 29, 2026
4am CDT Jun 29, 2026-6pm CDT Jul 5, 2026



