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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
73°F
23°C
| Humidity | 100% |
| Wind Speed | SE 5 mph |
| Barometer | 29.60 in (1001.0 mb) |
| Dewpoint | 73°F (23°C) |
| Visibility | 1.25 mi |
| Last update | 29 Jun 2:53 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 wind around 10 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 an east southeast wind 11 to 16 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)
2:36 am CDT Jun 29, 2026
3am CDT Jun 29, 2026-6pm CDT Jul 5, 2026



