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.

Overcast

62°F

17°C

Humidity 73%
Wind Speed S 16 G 29 mph
Barometer 30.25 in (1024.4 mb)
Dewpoint 53°F (12°C)
Visibility 10.00 mi
Last update 23 Sep 1:53 pm CDT
Extended Forecast for

6 Miles NNW Castlewood SD

  • This Afternoon

    This Afternoon: Mostly cloudy, with a high near 62. South southeast wind around 17 mph, with gusts as high as 28 mph.

    High: 62 °F

    Mostly Cloudy

  • Tonight

    Tonight: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Cloudy, with a low around 55. South southeast wind around 16 mph, with gusts as high as 28 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 55 °F

    Slight Chance
    T-storms then
    Showers
    Likely

  • Thursday

    Thursday: Showers likely, mainly before 9am. Cloudy, with a high near 62. South wind 13 to 16 mph, with gusts as high as 28 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    High: 62 °F

    Showers
    Likely then
    Slight Chance
    Showers

  • Thursday Night

    Thursday Night: Cloudy, with a low around 56. South southeast wind 6 to 8 mph.

    Low: 56 °F

    Cloudy

  • Friday

    Friday: A chance of showers, mainly after 1pm. Cloudy, with a high near 65. Southeast wind 7 to 14 mph, with gusts as high as 24 mph. Chance of precipitation is 50%.

    High: 65 °F

    Slight Chance
    Showers then
    Chance
    Showers

  • Friday Night

    Friday Night: Showers. Low around 56. Southeast wind 14 to 16 mph, with gusts as high as 26 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 56 °F

    Showers

  • Saturday

    Saturday: A chance of showers before 1pm. Mostly cloudy, with a high near 67. South southeast wind 11 to 16 mph, with gusts as high as 25 mph. Chance of precipitation is 40%.

    High: 67 °F

    Chance
    Showers

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 57. South southeast wind 5 to 8 mph becoming calm after midnight.

    Low: 57 °F

    Mostly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 70. Light and variable wind becoming east southeast 5 to 8 mph in the morning.

    High: 70 °F

    Partly Sunny

Detailed Forecast

This Afternoon
Mostly cloudy, with a high near 62. South southeast wind around 17 mph, with gusts as high as 28 mph.
Tonight
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Cloudy, with a low around 55. South southeast wind around 16 mph, with gusts as high as 28 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Thursday
Showers likely, mainly before 9am. Cloudy, with a high near 62. South wind 13 to 16 mph, with gusts as high as 28 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Thursday Night
Cloudy, with a low around 56. South southeast wind 6 to 8 mph.
Friday
A chance of showers, mainly after 1pm. Cloudy, with a high near 65. Southeast wind 7 to 14 mph, with gusts as high as 24 mph. Chance of precipitation is 50%.
Friday Night
Showers. Low around 56. Southeast wind 14 to 16 mph, with gusts as high as 26 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Saturday
A chance of showers before 1pm. Mostly cloudy, with a high near 67. South southeast wind 11 to 16 mph, with gusts as high as 25 mph. Chance of precipitation is 40%.
Saturday Night
Mostly cloudy, with a low around 57. South southeast wind 5 to 8 mph becoming calm after midnight.
Sunday
Partly sunny, with a high near 70. Light and variable wind becoming east southeast 5 to 8 mph in the morning.
Sunday Night
A slight chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 57. Chance of precipitation is 20%.
Monday
A chance of showers and thunderstorms. Mostly cloudy, with a high near 69. Chance of precipitation is 50%.
Monday Night
Showers and possibly a thunderstorm. Low around 54. Chance of precipitation is 80%.
Tuesday
A chance of showers. Mostly cloudy, with a high near 61. Chance of precipitation is 50%.
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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:
1:31 pm CDT Sep 23, 2026
Forecast Valid:
2pm CDT Sep 23, 2026-6pm CDT Sep 29, 2026
 
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Additional Resources

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High Temperature

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Chance of Precipitation