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

Watertown, Watertown Municipal Airport (KATY)

Lat: 44.9°NLon: 97.15°WElev: 1745ft.

Fair

59°F

15°C

Humidity 78%
Wind Speed W 8 mph
Barometer 30.06 in (1017.1 mb)
Dewpoint 52°F (11°C)
Visibility 10.00 mi
Last update 24 Jun 3:53 am CDT
Extended Forecast for

6 Miles NNW Castlewood SD

  • Today

    Today: Increasing clouds, with a high near 73. West northwest wind 9 to 17 mph, with gusts as high as 26 mph.

    High: 73 °F

    Increasing
    Clouds

  • Tonight

    Tonight: Mostly cloudy, then gradually becoming clear, with a low around 51. Northwest wind 5 to 14 mph, with gusts as high as 22 mph.

    Low: 51 °F

    Decreasing
    Clouds

  • Thursday

    Thursday: Partly sunny, with a high near 75. North northwest wind 5 to 8 mph becoming east northeast in the afternoon.

    High: 75 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 55. East wind around 6 mph.

    Low: 55 °F

    Mostly Cloudy

  • Friday

    Friday: A slight chance of showers before 1pm. Mostly cloudy, with a high near 77. Southeast wind 7 to 14 mph, with gusts as high as 22 mph. Chance of precipitation is 20%.

    High: 77 °F

    Slight Chance
    Showers

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 61. Southeast wind 13 to 15 mph, with gusts as high as 25 mph.

    Low: 61 °F

    Mostly Cloudy

  • Saturday

    Saturday: A slight chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 84. Breezy, with a south southeast wind 17 to 24 mph, with gusts as high as 36 mph. Chance of precipitation is 20%.

    High: 84 °F

    Breezy.
    Partly Sunny
    then Slight
    Chance
    T-storms

  • Saturday Night

    Saturday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 69. Breezy, with a southeast wind 20 to 22 mph, with gusts as high as 32 mph. Chance of precipitation is 40%.

    Low: 69 °F

    Chance
    Showers and
    Breezy

  • Sunday

    Sunday: A slight chance of showers and thunderstorms before 1pm. Mostly sunny and hot, with a high near 94. Breezy, with a southeast wind 20 to 23 mph, with gusts as high as 33 mph. Chance of precipitation is 20%.

    High: 94 °F

    Slight Chance
    T-storms and
    Breezy

Detailed Forecast

Today
Increasing clouds, with a high near 73. West northwest wind 9 to 17 mph, with gusts as high as 26 mph.
Tonight
Mostly cloudy, then gradually becoming clear, with a low around 51. Northwest wind 5 to 14 mph, with gusts as high as 22 mph.
Thursday
Partly sunny, with a high near 75. North northwest wind 5 to 8 mph becoming east northeast in the afternoon.
Thursday Night
Mostly cloudy, with a low around 55. East wind around 6 mph.
Friday
A slight chance of showers before 1pm. Mostly cloudy, with a high near 77. Southeast wind 7 to 14 mph, with gusts as high as 22 mph. Chance of precipitation is 20%.
Friday Night
Mostly cloudy, with a low around 61. Southeast wind 13 to 15 mph, with gusts as high as 25 mph.
Saturday
A slight chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 84. Breezy, with a south southeast wind 17 to 24 mph, with gusts as high as 36 mph. Chance of precipitation is 20%.
Saturday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 69. Breezy, with a southeast wind 20 to 22 mph, with gusts as high as 32 mph. Chance of precipitation is 40%.
Sunday
A slight chance of showers and thunderstorms before 1pm. Mostly sunny and hot, with a high near 94. Breezy, with a southeast wind 20 to 23 mph, with gusts as high as 33 mph. Chance of precipitation is 20%.
Sunday Night
A chance of showers and thunderstorms, mainly after 1am. Mostly clear, with a low around 69. Chance of precipitation is 40%.
Monday
A slight chance of showers and thunderstorms. Sunny and hot, with a high near 91. Chance of precipitation is 20%.
Monday Night
A slight chance of showers and thunderstorms. Mostly clear, with a low around 65. Chance of precipitation is 20%.
Tuesday
A slight chance of showers and thunderstorms. Mostly sunny and hot, with a high near 92. Chance of precipitation is 20%.
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ABOUT THIS FORECAST

 
Point Forecast:
6 Miles NNW Castlewood SD
 44.8°N 97.11°W (Elev. 1706 ft)
Last Update:
4:36 am CDT Jun 24, 2026
Forecast Valid:
4am CDT Jun 24, 2026-6pm CDT Jun 30, 2026
 
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Additional Resources

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Chance of Precipitation