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

12°F

-11°C

Humidity 58%
Wind Speed N 15 mph
Barometer 30.15 in (1025.1 mb)
Dewpoint 0°F (-18°C)
Visibility 10.00 mi
Wind Chill-4°F (-20°C)
Last update 16 Mar 4:53 pm CDT
Extended Forecast for

4 Miles ESE Castlewood SD

  • Tonight

    Tonight: Partly cloudy, with a low around -5. North northwest wind 9 to 14 mph becoming light and variable after midnight.

    Low: -5 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Snow, mainly before 3pm. Patchy blowing snow between noon and 4pm. High near 28. Breezy, with a south wind 8 to 13 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 31 mph. Chance of precipitation is 90%. New snow accumulation of less than one inch possible.

    High: 28 °F

    Snow Likely
    then Snow and
    Patchy
    Blowing Snow

  • Tuesday Night

    Tuesday Night: A slight chance of snow before 7pm. Cloudy during the early evening, then gradual clearing, with a temperature falling to near 23 by 8pm, then rising to around 28 during the remainder of the night. South southwest wind 10 to 14 mph becoming west after midnight. Winds could gust as high as 23 mph. Chance of precipitation is 10%.

    Low: 23 °F⇑

    Slight Chance
    Snow then
    Partly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 41. West southwest wind 9 to 11 mph.

    High: 41 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 31. West wind 7 to 10 mph.

    Low: 31 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 54. West southwest wind 6 to 11 mph.

    High: 54 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 39. Southwest wind around 9 mph.

    Low: 39 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 63. West northwest wind 10 to 18 mph, with gusts as high as 28 mph.

    High: 63 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 39. West northwest wind 11 to 14 mph becoming southwest after midnight.

    Low: 39 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Partly cloudy, with a low around -5. North northwest wind 9 to 14 mph becoming light and variable after midnight.
Tuesday
Snow, mainly before 3pm. Patchy blowing snow between noon and 4pm. High near 28. Breezy, with a south wind 8 to 13 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 31 mph. Chance of precipitation is 90%. New snow accumulation of less than one inch possible.
Tuesday Night
A slight chance of snow before 7pm. Cloudy during the early evening, then gradual clearing, with a temperature falling to near 23 by 8pm, then rising to around 28 during the remainder of the night. South southwest wind 10 to 14 mph becoming west after midnight. Winds could gust as high as 23 mph. Chance of precipitation is 10%.
Wednesday
Partly sunny, with a high near 41. West southwest wind 9 to 11 mph.
Wednesday Night
Partly cloudy, with a low around 31. West wind 7 to 10 mph.
Thursday
Mostly sunny, with a high near 54. West southwest wind 6 to 11 mph.
Thursday Night
Partly cloudy, with a low around 39. Southwest wind around 9 mph.
Friday
Mostly sunny, with a high near 63. West northwest wind 10 to 18 mph, with gusts as high as 28 mph.
Friday Night
Mostly cloudy, with a low around 39. West northwest wind 11 to 14 mph becoming southwest after midnight.
Saturday
Mostly sunny, with a high near 60. Breezy.
Saturday Night
Partly cloudy, with a low around 32.
Sunday
Mostly sunny, with a high near 45.
Sunday Night
Mostly cloudy, with a low around 24.
Monday
Mostly sunny, with a high near 44.
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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:
5:37 pm CDT Mar 16, 2026
Forecast Valid:
5pm CDT Mar 16, 2026-6pm CDT Mar 23, 2026
 
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Additional Resources

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Chance of Precipitation