Severe Thunderstorms and Heavy Rain from the Plains to the Mid-Atlantic; Ongoing Heat in the South

Severe thunderstorms and showers pose a risk for excessive rain, localized flash flooding, strong gusts and/or large hail across portions of the northern and central Plains, the Lower Missouri to Lower Ohio Valleys, and across the Mid-Atlantic this afternoon and evening. Extreme heat is ongoing over the Desert Southwest and the Southeast U.S.. Read More >

Current conditions at

Watertown, Watertown Municipal Airport (KATY)

Lat: 44.9°NLon: 97.15°WElev: 1745ft.

Fair

78°F

26°C

Humidity 60%
Wind Speed S 7 mph
Barometer 29.90 in (1011.5 mb)
Dewpoint 63°F (17°C)
Visibility 10.00 mi
Heat Index80°F (27°C)
Last update 9 Jul 6:53 pm CDT
Extended Forecast for

Clark SD

  • Tonight

    Tonight: Mostly cloudy, with a low around 64. South southeast wind 6 to 9 mph.

    Low: 64 °F

    Mostly Cloudy

  • Friday

    Friday: Partly sunny, then gradually becoming sunny, with a high near 88. South wind 10 to 14 mph.

    High: 88 °F

    Becoming
    Sunny

  • Friday Night

    Friday Night: A slight chance of showers and thunderstorms before 10pm, then a slight chance of showers between 10pm and 11pm.  Partly cloudy, with a low around 66. South southwest wind 7 to 10 mph becoming east southeast in the evening.  Chance of precipitation is 20%.

    Low: 66 °F

    Slight Chance
    T-storms then
    Partly Cloudy

  • Saturday

    Saturday: Sunny and hot, with a high near 90. South wind 10 to 13 mph, with gusts as high as 21 mph.

    High: 90 °F

    Hot

  • Saturday Night

    Saturday Night: Clear, with a low around 69. South wind 9 to 14 mph, with gusts as high as 23 mph.

    Low: 69 °F

    Clear

  • Sunday

    Sunday: Sunny and hot, with a high near 94. South wind 14 to 17 mph, with gusts as high as 25 mph.

    High: 94 °F

    Hot

  • Sunday Night

    Sunday Night: Clear, with a low around 71. South wind 14 to 17 mph, with gusts as high as 28 mph.

    Low: 71 °F

    Clear

  • Monday

    Monday: Sunny and hot, with a high near 94. Breezy, with a south wind 17 to 21 mph, with gusts as high as 30 mph.

    High: 94 °F

    Hot and
    Breezy

  • Monday Night

    Monday Night: Mostly clear, with a low around 71. Breezy, with a south wind 17 to 20 mph, with gusts as high as 29 mph.

    Low: 71 °F

    Mostly Clear
    and Breezy
    then Mostly
    Clear

Detailed Forecast

Tonight
Mostly cloudy, with a low around 64. South southeast wind 6 to 9 mph.
Friday
Partly sunny, then gradually becoming sunny, with a high near 88. South wind 10 to 14 mph.
Friday Night
A slight chance of showers and thunderstorms before 10pm, then a slight chance of showers between 10pm and 11pm. Partly cloudy, with a low around 66. South southwest wind 7 to 10 mph becoming east southeast in the evening. Chance of precipitation is 20%.
Saturday
Sunny and hot, with a high near 90. South wind 10 to 13 mph, with gusts as high as 21 mph.
Saturday Night
Clear, with a low around 69. South wind 9 to 14 mph, with gusts as high as 23 mph.
Sunday
Sunny and hot, with a high near 94. South wind 14 to 17 mph, with gusts as high as 25 mph.
Sunday Night
Clear, with a low around 71. South wind 14 to 17 mph, with gusts as high as 28 mph.
Monday
Sunny and hot, with a high near 94. Breezy, with a south wind 17 to 21 mph, with gusts as high as 30 mph.
Monday Night
Mostly clear, with a low around 71. Breezy, with a south wind 17 to 20 mph, with gusts as high as 29 mph.
Tuesday
Sunny and hot, with a high near 93.
Tuesday Night
Mostly clear, with a low around 69.
Wednesday
Sunny and hot, with a high near 91.
Wednesday Night
Mostly clear, with a low around 71.
Thursday
Mostly sunny and hot, with a high near 92. Breezy.
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ABOUT THIS FORECAST

 
Point Forecast:
Clark SD
 44.9°N 97.72°W (Elev. 1788 ft)
6:51 pm CDT Jul 9, 2026
7pm CDT Jul 9, 2026-6pm CDT Jul 16, 2026
 
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Additional Resources

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