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

54°F

12°C

Humidity 67%
Wind Speed N 16 mph
Barometer 29.73 in (1007.4 mb)
Dewpoint 43°F (6°C)
Visibility 10.00 mi
Wind Chill50°F (10°C)
Last update 14 Apr 3:53 pm CDT
Extended Forecast for

4 Miles ESE Castlewood SD

  • This Afternoon

    This Afternoon: A chance of sprinkles. Mostly cloudy, with a steady temperature around 54. North northwest wind around 16 mph.

    High: 54 °F

    Chance
    Sprinkles

  • Tonight

    Tonight: Mostly cloudy, with a low around 40. North northwest wind 6 to 11 mph becoming light and variable in the evening.

    Low: 40 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 69. Light and variable wind becoming west southwest 5 to 8 mph in the morning.

    High: 69 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 44. South southeast wind 6 to 9 mph.

    Low: 44 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 80. South southeast wind 10 to 18 mph, with gusts as high as 28 mph.

    High: 80 °F

    Sunny

  • Thursday Night

    Thursday Night: A slight chance of showers after 1am. Partly cloudy, with a low around 42. South southeast wind 13 to 16 mph, with gusts as high as 28 mph. Chance of precipitation is 20%.

    Low: 42 °F

    Partly Cloudy
    then Slight
    Chance
    Showers

  • Friday

    Friday: A chance of showers. Mostly cloudy, with a high near 56. Breezy, with an east northeast wind 16 to 23 mph becoming north northwest in the morning. Winds could gust as high as 34 mph. Chance of precipitation is 40%.

    High: 56 °F

    Chance
    Showers and
    Breezy

  • Friday Night

    Friday Night: A slight chance of rain and snow showers before 10pm, then a chance of snow showers. Mostly cloudy, with a low around 24. Blustery, with a north northwest wind 21 to 24 mph, with gusts as high as 34 mph. Chance of precipitation is 30%.

    Low: 24 °F

    Blustery.
    Slight Chance
    Rain/Snow
    then Chance
    Snow Showers

  • Saturday

    Saturday: A slight chance of snow showers. Partly sunny, with a high near 39. Breezy, with a northwest wind 21 to 24 mph, with gusts as high as 36 mph. Chance of precipitation is 20%.

    High: 39 °F

    Slight Chance
    Snow Showers
    and Breezy

Detailed Forecast

This Afternoon
A chance of sprinkles. Mostly cloudy, with a steady temperature around 54. North northwest wind around 16 mph.
Tonight
Mostly cloudy, with a low around 40. North northwest wind 6 to 11 mph becoming light and variable in the evening.
Wednesday
Mostly sunny, with a high near 69. Light and variable wind becoming west southwest 5 to 8 mph in the morning.
Wednesday Night
Mostly clear, with a low around 44. South southeast wind 6 to 9 mph.
Thursday
Sunny, with a high near 80. South southeast wind 10 to 18 mph, with gusts as high as 28 mph.
Thursday Night
A slight chance of showers after 1am. Partly cloudy, with a low around 42. South southeast wind 13 to 16 mph, with gusts as high as 28 mph. Chance of precipitation is 20%.
Friday
A chance of showers. Mostly cloudy, with a high near 56. Breezy, with an east northeast wind 16 to 23 mph becoming north northwest in the morning. Winds could gust as high as 34 mph. Chance of precipitation is 40%.
Friday Night
A slight chance of rain and snow showers before 10pm, then a chance of snow showers. Mostly cloudy, with a low around 24. Blustery, with a north northwest wind 21 to 24 mph, with gusts as high as 34 mph. Chance of precipitation is 30%.
Saturday
A slight chance of snow showers. Partly sunny, with a high near 39. Breezy, with a northwest wind 21 to 24 mph, with gusts as high as 36 mph. Chance of precipitation is 20%.
Saturday Night
Partly cloudy, with a low around 23. Blustery.
Sunday
Sunny, with a high near 51.
Sunday Night
Mostly clear, with a low around 30.
Monday
Sunny, with a high near 62. Breezy.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles ESE Castlewood SD
 44.72°N 96.96°W (Elev. 1749 ft)
Last Update:
4:36 pm CDT Apr 14, 2026
Forecast Valid:
4pm CDT Apr 14, 2026-6pm CDT Apr 20, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation