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.

Fair

57°F

14°C

Humidity 37%
Wind Speed SE 17 G 29 mph
Barometer 29.85 in (1010.1 mb)
Dewpoint 31°F (-1°C)
Visibility 10.00 mi
Last update 14 May 3:53 am CDT
Extended Forecast for

4 Miles W Castlewood SD

Red Flag Warning May 14, 07:00am until May 15, 04:00pm
Click here for hazard details and duration
Red Flag Warning

  • Today

    Today: Patchy blowing dust. Partly sunny, with a high near 81. Windy, with a south wind 24 to 34 mph, with gusts as high as 47 mph.

    High: 81 °F

    Patchy
    Blowing Dust
    and Windy

  • Tonight

    Tonight: Mostly cloudy, then gradually becoming clear, with a low around 46. West southwest wind 8 to 17 mph, with gusts as high as 26 mph.

    Low: 46 °F

    Decreasing
    Clouds

  • Friday

    Friday: Sunny, with a high near 80. West wind 8 to 18 mph, with gusts as high as 28 mph.

    High: 80 °F

    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 46. West wind 7 to 13 mph, with gusts as high as 22 mph.

    Low: 46 °F

    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 75. North northwest wind 6 to 11 mph.

    High: 75 °F

    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 44. North northeast wind 9 to 18 mph becoming east after midnight. Winds could gust as high as 28 mph.

    Low: 44 °F

    Partly Cloudy

  • Sunday

    Sunday: Showers and possibly a thunderstorm. High near 71. Breezy, with an east southeast wind 20 to 25 mph, with gusts as high as 34 mph. Chance of precipitation is 80%.

    High: 71 °F

    Showers and
    Breezy

  • Sunday Night

    Sunday Night: Showers and possibly a thunderstorm before 1am, then showers likely. Low around 48. Breezy, with an east southeast wind 16 to 21 mph becoming west northwest after midnight. Winds could gust as high as 31 mph. Chance of precipitation is 90%.

    Low: 48 °F

    Showers and
    Breezy

  • Monday

    Monday: A chance of showers. Mostly cloudy, with a high near 69. Breezy, with a west wind 18 to 22 mph, with gusts as high as 33 mph. Chance of precipitation is 50%.

    High: 69 °F

    Chance
    Showers and
    Breezy

Detailed Forecast

Today
Patchy blowing dust. Partly sunny, with a high near 81. Windy, with a south wind 24 to 34 mph, with gusts as high as 47 mph.
Tonight
Mostly cloudy, then gradually becoming clear, with a low around 46. West southwest wind 8 to 17 mph, with gusts as high as 26 mph.
Friday
Sunny, with a high near 80. West wind 8 to 18 mph, with gusts as high as 28 mph.
Friday Night
Partly cloudy, with a low around 46. West wind 7 to 13 mph, with gusts as high as 22 mph.
Saturday
Sunny, with a high near 75. North northwest wind 6 to 11 mph.
Saturday Night
Partly cloudy, with a low around 44. North northeast wind 9 to 18 mph becoming east after midnight. Winds could gust as high as 28 mph.
Sunday
Showers and possibly a thunderstorm. High near 71. Breezy, with an east southeast wind 20 to 25 mph, with gusts as high as 34 mph. Chance of precipitation is 80%.
Sunday Night
Showers and possibly a thunderstorm before 1am, then showers likely. Low around 48. Breezy, with an east southeast wind 16 to 21 mph becoming west northwest after midnight. Winds could gust as high as 31 mph. Chance of precipitation is 90%.
Monday
A chance of showers. Mostly cloudy, with a high near 69. Breezy, with a west wind 18 to 22 mph, with gusts as high as 33 mph. Chance of precipitation is 50%.
Monday Night
A chance of showers, mainly before 1am. Partly cloudy, with a low around 39. Breezy. Chance of precipitation is 40%.
Tuesday
A slight chance of showers. Partly sunny, with a high near 60. Breezy. Chance of precipitation is 20%.
Tuesday Night
Partly cloudy, with a low around 36.
Wednesday
Mostly sunny, with a high near 67.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles W Castlewood SD
 44.74°N 97.11°W (Elev. 1762 ft)
Last Update:
3:36 am CDT May 14, 2026
Forecast Valid:
4am CDT May 14, 2026-6pm CDT May 20, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation