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
Click here for hazard details and duration
Heat Advisory
  • Today

    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.

    High: 96 °F

    Hot

  • Tonight

    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%.

    Low: 76 °F

    Slight Chance
    Showers

  • Sunday

    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.

    High: 99 °F

    Hot

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 72. South southwest wind 7 to 9 mph becoming north northwest after midnight.

    Low: 72 °F

    Mostly Clear

  • Monday

    Monday: Sunny and hot, with a high near 95. North wind 8 to 13 mph, with gusts as high as 21 mph.

    High: 95 °F

    Hot

  • Monday Night

    Monday Night: Partly cloudy, with a low around 71. North northeast wind 5 to 8 mph becoming east after midnight.

    Low: 71 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny and hot, with a high near 94. East wind 5 to 8 mph becoming west southwest in the afternoon.

    High: 94 °F

    Hot

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 70. East wind around 7 mph becoming south southeast after midnight.

    Low: 70 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny and hot, with a high near 94. South wind 8 to 11 mph, with gusts as high as 20 mph.

    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.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
6 Miles WSW Watertown SD
 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
 
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Additional Resources

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