Tropical Storm Edouard to Impact the Northwest Gulf Coast; Heat Expands Eastward

Tropical Storm Edouard will bring tropical storm to hurricane conditions, heavy rainfall, flash and some river flooding, and storm surge to portions of Upper Texas and southwestern Louisiana coasts into Wednesday. Severe thunderstorms are possible in the Central Plains and Mid-Atlantic. Hot and humid conditions will expand from the Central Plains into the Ohio Valley and Mid-Atlantic. Read More >

Hazardous Weather Conditions

Current conditions at

Watertown, Watertown Municipal Airport (KATY)

Lat: 44.9°NLon: 97.15°WElev: 1745ft.

Partly Cloudy

78°F

26°C

Humidity 42%
Wind Speed E 8 mph
Barometer 29.97 in (1014.3 mb)
Dewpoint 53°F (12°C)
Visibility 10.00 mi
Heat Index79°F (26°C)
Last update 1 Sep 2:53 pm CDT
Extended Forecast for

Clark SD

  • This Afternoon

    This Afternoon: A slight chance of showers after 5pm.  Mostly cloudy, with a high near 79. East southeast wind around 8 mph.  Chance of precipitation is 10%.

    High: 79 °F

    Slight Chance
    Showers

  • Tonight

    Tonight: A chance of showers and thunderstorms, mainly before 1am.  Mostly cloudy, with a low around 59. East northeast wind around 9 mph.  Chance of precipitation is 50%.

    Low: 59 °F

    Chance
    T-storms

  • Wednesday

    Wednesday: Mostly cloudy through mid morning, then gradual clearing, with a high near 82. East southeast wind around 10 mph.

    High: 82 °F

    Becoming
    Sunny

  • Wednesday Night

    Wednesday Night: Increasing clouds, with a low around 66. East southeast wind 9 to 11 mph, with gusts as high as 20 mph.

    Low: 66 °F

    Increasing
    Clouds

  • Thursday

    Thursday: Sunny, with a high near 88. East southeast wind 11 to 13 mph, with gusts as high as 22 mph.

    High: 88 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 67. Southeast wind 6 to 8 mph.

    Low: 67 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 89. Southeast wind 7 to 13 mph.

    High: 89 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 70. Southeast wind 10 to 13 mph, with gusts as high as 21 mph.

    Low: 70 °F

    Mostly Clear

  • Saturday

    Saturday: A slight chance of showers and thunderstorms after 1pm.  Mostly sunny, with a high near 88. South southeast wind 11 to 13 mph, with gusts as high as 22 mph.  Chance of precipitation is 20%.

    High: 88 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

Detailed Forecast

This Afternoon
A slight chance of showers after 5pm. Mostly cloudy, with a high near 79. East southeast wind around 8 mph. Chance of precipitation is 10%.
Tonight
A chance of showers and thunderstorms, mainly before 1am. Mostly cloudy, with a low around 59. East northeast wind around 9 mph. Chance of precipitation is 50%.
Wednesday
Mostly cloudy through mid morning, then gradual clearing, with a high near 82. East southeast wind around 10 mph.
Wednesday Night
Increasing clouds, with a low around 66. East southeast wind 9 to 11 mph, with gusts as high as 20 mph.
Thursday
Sunny, with a high near 88. East southeast wind 11 to 13 mph, with gusts as high as 22 mph.
Thursday Night
Mostly clear, with a low around 67. Southeast wind 6 to 8 mph.
Friday
Sunny, with a high near 89. Southeast wind 7 to 13 mph.
Friday Night
Mostly clear, with a low around 70. Southeast wind 10 to 13 mph, with gusts as high as 21 mph.
Saturday
A slight chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 88. South southeast wind 11 to 13 mph, with gusts as high as 22 mph. Chance of precipitation is 20%.
Saturday Night
A chance of showers and thunderstorms, mainly after 1am. Partly cloudy, with a low around 66. Chance of precipitation is 30%.
Sunday
A slight chance of showers. Mostly sunny, with a high near 83. Chance of precipitation is 20%.
Sunday Night
A chance of showers. Partly cloudy, with a low around 62. Chance of precipitation is 30%.
Labor Day
A chance of showers. Partly sunny, with a high near 80. Chance of precipitation is 30%.
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ABOUT THIS FORECAST

 
Point Forecast:
Clark SD
 44.88°N 97.72°W (Elev. 1798 ft)
4:06 pm CDT Sep 1, 2026
4pm CDT Sep 1, 2026-6pm CDT Sep 7, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database