National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Watertown, Watertown Municipal Airport (KATY)

Lat: 44.9°NLon: 97.15°WElev: 1745ft.

Fair

87°F

31°C

Humidity 57%
Wind Speed S 7 mph
Barometer 29.95 in (1012.7 mb)
Dewpoint 70°F (21°C)
Visibility 10.00 mi
Heat Index92°F (33°C)
Last update 28 Jul 12:53 pm CDT
Extended Forecast for

3 Miles S Goodwin SD

  • This Afternoon

    This Afternoon: A chance of showers and thunderstorms, mainly after 5pm. Patchy smoke. Mostly sunny, with a high near 89. Light south southwest wind. Chance of precipitation is 30%.

    High: 89 °F

    Chance
    Showers

  • Tonight

    Tonight: A chance of showers and thunderstorms, mainly before 8pm. Patchy smoke. Partly cloudy, with a low around 68. East wind around 6 mph becoming south southwest after midnight. Chance of precipitation is 30%.

    Low: 68 °F

    Chance
    T-storms then
    Patchy Smoke

  • Wednesday

    Wednesday: Patchy smoke. Mostly sunny, with a high near 89. South southwest wind 8 to 10 mph.

    High: 89 °F

    Patchy Smoke

  • Wednesday Night

    Wednesday Night: A slight chance of showers and thunderstorms after 1am. Patchy smoke before 1am. Partly cloudy, with a low around 70. South southeast wind 8 to 13 mph, with gusts as high as 21 mph. Chance of precipitation is 20%.

    Low: 70 °F

    Patchy Smoke
    then Slight
    Chance
    T-storms

  • Thursday

    Thursday: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 1pm. High near 86. South wind around 14 mph, with gusts as high as 23 mph. Chance of precipitation is 80%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 86 °F

    Chance
    Showers then
    Showers

  • Thursday Night

    Thursday Night: Showers and possibly a thunderstorm. Low around 65. South wind 8 to 10 mph becoming north after midnight. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.

    Low: 65 °F

    Showers

  • Friday

    Friday: A chance of showers and thunderstorms before 10am, then a chance of showers between 10am and 1pm, then a slight chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 82. North northeast wind 15 to 17 mph, with gusts as high as 28 mph. Chance of precipitation is 30%.

    High: 82 °F

    Chance
    Showers

  • Friday Night

    Friday Night: Mostly clear, with a low around 63. North wind 5 to 11 mph.

    Low: 63 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 80. North northeast wind 5 to 7 mph.

    High: 80 °F

    Sunny

Detailed Forecast

This Afternoon
A chance of showers and thunderstorms, mainly after 5pm. Patchy smoke. Mostly sunny, with a high near 89. Light south southwest wind. Chance of precipitation is 30%.
Tonight
A chance of showers and thunderstorms, mainly before 8pm. Patchy smoke. Partly cloudy, with a low around 68. East wind around 6 mph becoming south southwest after midnight. Chance of precipitation is 30%.
Wednesday
Patchy smoke. Mostly sunny, with a high near 89. South southwest wind 8 to 10 mph.
Wednesday Night
A slight chance of showers and thunderstorms after 1am. Patchy smoke before 1am. Partly cloudy, with a low around 70. South southeast wind 8 to 13 mph, with gusts as high as 21 mph. Chance of precipitation is 20%.
Thursday
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 1pm. High near 86. South wind around 14 mph, with gusts as high as 23 mph. Chance of precipitation is 80%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday Night
Showers and possibly a thunderstorm. Low around 65. South wind 8 to 10 mph becoming north after midnight. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.
Friday
A chance of showers and thunderstorms before 10am, then a chance of showers between 10am and 1pm, then a slight chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 82. North northeast wind 15 to 17 mph, with gusts as high as 28 mph. Chance of precipitation is 30%.
Friday Night
Mostly clear, with a low around 63. North wind 5 to 11 mph.
Saturday
Sunny, with a high near 80. North northeast wind 5 to 7 mph.
Saturday Night
Mostly clear, with a low around 62.
Sunday
Sunny, with a high near 83.
Sunday Night
Mostly clear, with a low around 66. Breezy.
Monday
Sunny, with a high near 86. Breezy.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles S Goodwin SD
 44.83°N 96.84°W (Elev. 1952 ft)
Last Update:
12:36 pm CDT Jul 28, 2026
Forecast Valid:
1pm CDT Jul 28, 2026-6pm CDT Aug 3, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation