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

Extreme Heat and Excessive Rainfall This Week

A significant heat wave continues for the Rockies, Northern Plains, and Great Lakes into the Mid-Atlantic, peaking in intensity through midweek and lingering across parts of the Northern Plains and Midwest until this weekend. Excessive rainfall my bring life-threatening and locally catastrophic flash and urban flooding across portions of southwestern Texas through early Friday. Read More >

Hazardous Weather Conditions

Current conditions at

Watertown, Watertown Municipal Airport (KATY)

Lat: 44.9°NLon: 97.15°WElev: 1745ft.

Fair

81°F

27°C

Humidity 74%
Wind Speed S 9 mph
Barometer 30.13 in (1019.0 mb)
Dewpoint 72°F (22°C)
Visibility 10.00 mi
Heat Index85°F (29°C)
Last update 14 Jul 8:53 pm CDT
Extended Forecast for

Clark SDSimilar City Names

  • Tonight

    Tonight: Clear, with a low around 68. South wind around 10 mph, with gusts as high as 20 mph.

    Low: 68 °F

    Clear

  • Wednesday

    Wednesday: Sunny and hot, with a high near 91. South wind 8 to 13 mph.

    High: 91 °F

    Hot

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 69. South southeast wind 9 to 11 mph.

    Low: 69 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny and hot, with a high near 93. South wind 11 to 15 mph, with gusts as high as 23 mph.

    High: 93 °F

    Hot

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 73. South southeast wind 10 to 15 mph, with gusts as high as 23 mph.

    Low: 73 °F

    Mostly Clear

  • Friday

    Friday: Sunny and hot, with a high near 95. South wind 11 to 14 mph becoming west in the afternoon.

    High: 95 °F

    Hot

  • Friday Night

    Friday Night: Mostly clear, with a low around 70. Northeast wind 9 to 11 mph.

    Low: 70 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny and hot, with a high near 90. Northeast wind around 11 mph.

    High: 90 °F

    Hot

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 69. East northeast wind around 11 mph becoming southeast after midnight.

    Low: 69 °F

    Mostly Clear

Detailed Forecast

Tonight
Clear, with a low around 68. South wind around 10 mph, with gusts as high as 20 mph.
Wednesday
Sunny and hot, with a high near 91. South wind 8 to 13 mph.
Wednesday Night
Mostly clear, with a low around 69. South southeast wind 9 to 11 mph.
Thursday
Sunny and hot, with a high near 93. South wind 11 to 15 mph, with gusts as high as 23 mph.
Thursday Night
Mostly clear, with a low around 73. South southeast wind 10 to 15 mph, with gusts as high as 23 mph.
Friday
Sunny and hot, with a high near 95. South wind 11 to 14 mph becoming west in the afternoon.
Friday Night
Mostly clear, with a low around 70. Northeast wind 9 to 11 mph.
Saturday
Sunny and hot, with a high near 90. Northeast wind around 11 mph.
Saturday Night
Mostly clear, with a low around 69. East northeast wind around 11 mph becoming southeast after midnight.
Sunday
A slight chance of showers and thunderstorms. Mostly sunny and hot, with a high near 91. Chance of precipitation is 20%.
Sunday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 69. Chance of precipitation is 20%.
Monday
Mostly sunny, with a high near 86. Breezy.
Monday Night
Partly cloudy, with a low around 64.
Tuesday
Mostly sunny, with a high near 80.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Clark SDSimilar City Names
 44.88°N 97.75°W (Elev. 1808 ft)
Last Update:
8:36 pm CDT Jul 14, 2026
Forecast Valid:
9pm CDT Jul 14, 2026-6pm CDT Jul 21, 2026
 
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