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

Hazardous Weather Conditions

Current conditions at

Watertown, Watertown Municipal Airport (KATY)

Lat: 44.9°NLon: 97.15°WElev: 1745ft.

Partly Cloudy

67°F

19°C

Humidity 68%
Wind Speed W 7 mph
Barometer 29.89 in (1011.5 mb)
Dewpoint 56°F (13°C)
Visibility 10.00 mi
Last update 18 Jun 9:53 pm CDT
Extended Forecast for

Clark SD

Extreme Heat Watch June 21, 12:00pm until June 22, 09:00pm
Click here for hazard details and duration
Extreme Heat Watch

  • Tonight

    Tonight: Mostly clear, with a low around 57. South southeast wind 5 to 10 mph becoming southwest in the evening.

    Low: 57 °F

    Mostly Clear

  • Juneteenth

    Juneteenth: Sunny, with a high near 86. South southwest wind 11 to 16 mph, with gusts as high as 25 mph.

    High: 86 °F

    Sunny

  • Thursday Night

    Thursday Night: A slight chance of showers and thunderstorms before 1am. Mostly clear, with a low around 66. South southeast wind 13 to 17 mph, with gusts as high as 26 mph. Chance of precipitation is 20%.

    Low: 66 °F

    Slight Chance
    T-storms

  • Friday

    Friday: Sunny, with a high near 89. Breezy, with a south southeast wind 14 to 21 mph, with gusts as high as 31 mph.

    High: 89 °F

    Mostly Sunny
    then Sunny
    and Breezy

  • Friday Night

    Friday Night: A slight chance of showers and thunderstorms before 1am. Mostly clear, with a low around 70. South wind 14 to 16 mph, with gusts as high as 26 mph. Chance of precipitation is 20%.

    Low: 70 °F

    Slight Chance
    T-storms

  • Saturday

    Saturday: Sunny and hot, with a high near 93. South wind 14 to 18 mph, with gusts as high as 28 mph.

    High: 93 °F

    Hot

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 74. South wind 14 to 18 mph, with gusts as high as 29 mph.

    Low: 74 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny and hot, with a high near 90. Breezy, with a south wind 21 to 24 mph, with gusts as high as 36 mph.

    High: 90 °F

    Hot and
    Breezy

  • Sunday Night

    Sunday Night: A chance of showers and thunderstorms, mainly after 1am. Mostly cloudy, with a low around 58. North northwest wind 13 to 18 mph, with gusts as high as 29 mph. Chance of precipitation is 40%.

    Low: 58 °F

    Chance
    T-storms

Detailed Forecast

Tonight
Mostly clear, with a low around 57. South southeast wind 5 to 10 mph becoming southwest in the evening.
Juneteenth
Sunny, with a high near 86. South southwest wind 11 to 16 mph, with gusts as high as 25 mph.
Thursday Night
A slight chance of showers and thunderstorms before 1am. Mostly clear, with a low around 66. South southeast wind 13 to 17 mph, with gusts as high as 26 mph. Chance of precipitation is 20%.
Friday
Sunny, with a high near 89. Breezy, with a south southeast wind 14 to 21 mph, with gusts as high as 31 mph.
Friday Night
A slight chance of showers and thunderstorms before 1am. Mostly clear, with a low around 70. South wind 14 to 16 mph, with gusts as high as 26 mph. Chance of precipitation is 20%.
Saturday
Sunny and hot, with a high near 93. South wind 14 to 18 mph, with gusts as high as 28 mph.
Saturday Night
Mostly clear, with a low around 74. South wind 14 to 18 mph, with gusts as high as 29 mph.
Sunday
Sunny and hot, with a high near 90. Breezy, with a south wind 21 to 24 mph, with gusts as high as 36 mph.
Sunday Night
A chance of showers and thunderstorms, mainly after 1am. Mostly cloudy, with a low around 58. North northwest wind 13 to 18 mph, with gusts as high as 29 mph. Chance of precipitation is 40%.
Monday
A chance of showers and thunderstorms, mainly before 1pm. Mostly cloudy, with a high near 68. Chance of precipitation is 40%.
Monday Night
A slight chance of showers and thunderstorms. Mostly cloudy, with a low around 53. Chance of precipitation is 20%.
Tuesday
A chance of showers. Mostly cloudy, with a high near 65. Chance of precipitation is 40%.
Tuesday Night
A chance of showers and thunderstorms. Cloudy, with a low around 54. Chance of precipitation is 50%.
Wednesday
A chance of showers and thunderstorms. Mostly cloudy, with a high near 67. Chance of precipitation is 40%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Clark SD
 44.9°N 97.75°W (Elev. 1811 ft)
Last Update:
10:46 pm CDT Jun 18, 2025
Forecast Valid:
10pm CDT Jun 18, 2025-6pm CDT Jun 25, 2025
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

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National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation