Tropical Storm Edouard Impacting the Northwestern Gulf Coast; Hazardous Heat expands in the East

Tropical Storm Edouard will impact the northwestern Gulf Coast through Wednesday with gusty winds, storm surge, and heavy rainfall. Flash and river flooding will be possible, especially in southeastern Texas. Hazardous heat will expand across the central and eastern U.S. by mid-week, and daily chances for severe thunderstorms are expected from the eastern Great Lakes to the Mid-Atlantic this week. Read More >

Hazardous Weather Conditions

Current conditions at

Watertown, Watertown Municipal Airport (KATY)

Lat: 44.9°NLon: 97.15°WElev: 1745ft.

Fair

69°F

21°C

Humidity 55%
Wind Speed E 5 mph
Barometer 29.91 in (1011.8 mb)
Dewpoint 52°F (11°C)
Visibility 10.00 mi
Last update 2 Sep 12:53 am CDT
Extended Forecast for

4 Miles W Watertown SD

  • Overnight

    Overnight: A chance of showers and thunderstorms, mainly before 3am.  Mostly cloudy, with a steady temperature around 63. East northeast wind around 7 mph.  Chance of precipitation is 30%.

    Low: 63 °F

    Chance
    Showers

  • Wednesday

    Wednesday: Mostly sunny, with a high near 82. East wind 6 to 10 mph.

    High: 82 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 66. East southeast wind 8 to 10 mph.

    Low: 66 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly cloudy through mid morning, then gradual clearing, with a high near 88. South southeast wind 8 to 11 mph, with gusts as high as 20 mph.

    High: 88 °F

    Becoming
    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 68. East southeast wind 5 to 8 mph.

    Low: 68 °F

    Mostly Clear

  • Friday

    Friday: Sunny and hot, with a high near 90. Southeast wind 5 to 11 mph.

    High: 90 °F

    Hot

  • Friday Night

    Friday Night: Mostly clear, with a low around 71. South southeast wind 8 to 10 mph.

    Low: 71 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 89. South wind 9 to 11 mph, with gusts as high as 21 mph.

    High: 89 °F

    Sunny

  • Saturday Night

    Saturday Night: A chance of showers and thunderstorms, mainly after 1am.  Partly cloudy, with a low around 67. South wind around 9 mph.  Chance of precipitation is 30%.

    Low: 67 °F

    Chance
    T-storms

Detailed Forecast

Overnight
A chance of showers and thunderstorms, mainly before 3am. Mostly cloudy, with a steady temperature around 63. East northeast wind around 7 mph. Chance of precipitation is 30%.
Wednesday
Mostly sunny, with a high near 82. East wind 6 to 10 mph.
Wednesday Night
Partly cloudy, with a low around 66. East southeast wind 8 to 10 mph.
Thursday
Mostly cloudy through mid morning, then gradual clearing, with a high near 88. South southeast wind 8 to 11 mph, with gusts as high as 20 mph.
Thursday Night
Mostly clear, with a low around 68. East southeast wind 5 to 8 mph.
Friday
Sunny and hot, with a high near 90. Southeast wind 5 to 11 mph.
Friday Night
Mostly clear, with a low around 71. South southeast wind 8 to 10 mph.
Saturday
Sunny, with a high near 89. South wind 9 to 11 mph, with gusts as high as 21 mph.
Saturday Night
A chance of showers and thunderstorms, mainly after 1am. Partly cloudy, with a low around 67. South wind around 9 mph. Chance of precipitation is 30%.
Sunday
A slight chance of showers and thunderstorms, then a chance of showers after 1pm. Mostly sunny, with a high near 85. Chance of precipitation is 40%.
Sunday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 63. Chance of precipitation is 40%.
Labor Day
A chance of showers and thunderstorms. Partly sunny, with a high near 79. Chance of precipitation is 30%.
Monday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 63. Chance of precipitation is 50%.
Tuesday
A chance of showers. Partly sunny, with a high near 79. Chance of precipitation is 30%.
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles W Watertown SD
 44.93°N 97.24°W (Elev. 1742 ft)
1:31 am CDT Sep 2, 2026
1am CDT Sep 2, 2026-6pm CDT Sep 8, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database