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.

A Few Clouds

67°F

19°C

Humidity 32%
Wind Speed SE 8 mph
Barometer 29.55 in (1000.2 mb)
Dewpoint 36°F (2°C)
Visibility 10.00 mi
Last update 16 Apr 9:53 pm CDT
Extended Forecast for

Watertown SD

  • Tonight

    Tonight: Mostly cloudy, with a low around 36. South southeast wind 11 to 15 mph becoming north after midnight. Winds could gust as high as 26 mph.

    Low: 36 °F

    Mostly Cloudy

  • Friday

    Friday: A chance of rain and snow showers before noon, then a chance of snow showers between noon and 1pm. Mostly cloudy, with a high near 41. Breezy, with a north northwest wind 17 to 22 mph, with gusts as high as 34 mph. Chance of precipitation is 40%.

    High: 41 °F

    Breezy.
    Chance
    Rain/Snow
    then Chance
    Snow Showers

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 23. Blustery, with a northwest wind 17 to 22 mph, with gusts as high as 34 mph.

    Low: 23 °F

    Mostly Cloudy
    and Blustery
    then Partly
    Cloudy

  • Saturday

    Saturday: Sunny, with a high near 44. Breezy, with a west northwest wind 17 to 21 mph, with gusts as high as 32 mph.

    High: 44 °F

    Sunny and
    Breezy

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 25. Northwest wind 13 to 18 mph decreasing to 6 to 11 mph in the evening. Winds could gust as high as 28 mph.

    Low: 25 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 52. North northwest wind 6 to 9 mph.

    High: 52 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 32. North northeast wind 6 to 11 mph becoming southeast after midnight. Winds could gust as high as 20 mph.

    Low: 32 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 69. South southeast wind 13 to 18 mph, with gusts as high as 28 mph.

    High: 69 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 42. South southwest wind 9 to 13 mph becoming north after midnight.

    Low: 42 °F

    Mostly Clear

Detailed Forecast

Tonight
Mostly cloudy, with a low around 36. South southeast wind 11 to 15 mph becoming north after midnight. Winds could gust as high as 26 mph.
Friday
A chance of rain and snow showers before noon, then a chance of snow showers between noon and 1pm. Mostly cloudy, with a high near 41. Breezy, with a north northwest wind 17 to 22 mph, with gusts as high as 34 mph. Chance of precipitation is 40%.
Friday Night
Mostly cloudy, with a low around 23. Blustery, with a northwest wind 17 to 22 mph, with gusts as high as 34 mph.
Saturday
Sunny, with a high near 44. Breezy, with a west northwest wind 17 to 21 mph, with gusts as high as 32 mph.
Saturday Night
Mostly clear, with a low around 25. Northwest wind 13 to 18 mph decreasing to 6 to 11 mph in the evening. Winds could gust as high as 28 mph.
Sunday
Sunny, with a high near 52. North northwest wind 6 to 9 mph.
Sunday Night
Mostly clear, with a low around 32. North northeast wind 6 to 11 mph becoming southeast after midnight. Winds could gust as high as 20 mph.
Monday
Sunny, with a high near 69. South southeast wind 13 to 18 mph, with gusts as high as 28 mph.
Monday Night
Mostly clear, with a low around 42. South southwest wind 9 to 13 mph becoming north after midnight.
Tuesday
Sunny, with a high near 71.
Tuesday Night
Mostly clear, with a low around 44.
Wednesday
Sunny, with a high near 74.
Wednesday Night
A chance of showers. Partly cloudy, with a low around 49. Chance of precipitation is 30%.
Thursday
A chance of showers. Partly sunny, with a high near 70. Breezy. Chance of precipitation is 50%.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Watertown SD
 44.91°N 97.14°W (Elev. 1736 ft)
Last Update:
9:36 pm CDT Apr 16, 2026
Forecast Valid:
10pm CDT Apr 16, 2026-6pm CDT Apr 23, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation