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

Storm Systems to Impact the Central and Eastern U.S. Through the Weekend

Two storm systems will track through the central and eastern U.S. today through this weekend with areas of gusty winds, rain and heavy snow. Severe thunderstorms and heavy to excessive rainfall is forecast today from the Lower Mississippi River Valley to the Tennessee Valley. Damaging winds, a few tornadoes, and areas of flooding are possible. Read More >

Current conditions at

Watertown, Watertown Municipal Airport (KATY)

Lat: 44.9°NLon: 97.15°WElev: 1745ft.

Overcast

32°F

0°C

Humidity 82%
Wind Speed W 13 mph
Barometer 30.13 in (1023.0 mb)
Dewpoint 27°F (-3°C)
Visibility 10.00 mi
Wind Chill22°F (-6°C)
Last update 9 Jan 5:53 pm CST
Extended Forecast for

Watertown SD

  • Tonight

    Tonight: A slight chance of snow before 1am, then a chance of flurries between 1am and 3am. Mostly cloudy during the early evening, then becoming mostly clear, with a low around 15. West northwest wind 10 to 14 mph. Chance of precipitation is 20%.

    Low: 15 °F

    Slight Chance
    Snow then
    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 22. Blustery, with a northwest wind 14 to 22 mph, with gusts as high as 31 mph.

    High: 22 °F

    Sunny then
    Sunny and
    Blustery

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 7. Northwest wind 12 to 17 mph becoming west northwest 6 to 11 mph after midnight. Winds could gust as high as 25 mph.

    Low: 7 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 34. South southwest wind 7 to 17 mph, with gusts as high as 26 mph.

    High: 34 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 25. West wind 11 to 15 mph.

    Low: 25 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 44. West southwest wind 11 to 16 mph, with gusts as high as 25 mph.

    High: 44 °F

    Mostly Sunny

  • Monday Night

    Monday Night: A slight chance of rain after midnight. Mostly cloudy, with a low around 36. Breezy, with a west wind 15 to 20 mph, with gusts as high as 29 mph. Chance of precipitation is 20%.

    Low: 36 °F

    Mostly Cloudy
    then Slight
    Chance Rain
    and Breezy

  • Tuesday

    Tuesday: A slight chance of rain. Partly sunny, with a high near 43. Breezy, with a west northwest wind 20 to 24 mph, with gusts as high as 36 mph. Chance of precipitation is 20%.

    High: 43 °F

    Slight Chance
    Rain and
    Breezy

  • Tuesday Night

    Tuesday Night: A slight chance of rain and snow before midnight, then a slight chance of snow. Mostly cloudy, with a low around 20. Blustery, with a north northwest wind 17 to 22 mph, with gusts as high as 30 mph. Chance of precipitation is 20%.

    Low: 20 °F

    Slight Chance
    Rain/Snow and
    Blustery then
    Slight Chance
    Snow

Detailed Forecast

Tonight
A slight chance of snow before 1am, then a chance of flurries between 1am and 3am. Mostly cloudy during the early evening, then becoming mostly clear, with a low around 15. West northwest wind 10 to 14 mph. Chance of precipitation is 20%.
Saturday
Sunny, with a high near 22. Blustery, with a northwest wind 14 to 22 mph, with gusts as high as 31 mph.
Saturday Night
Mostly clear, with a low around 7. Northwest wind 12 to 17 mph becoming west northwest 6 to 11 mph after midnight. Winds could gust as high as 25 mph.
Sunday
Mostly sunny, with a high near 34. South southwest wind 7 to 17 mph, with gusts as high as 26 mph.
Sunday Night
Partly cloudy, with a low around 25. West wind 11 to 15 mph.
Monday
Mostly sunny, with a high near 44. West southwest wind 11 to 16 mph, with gusts as high as 25 mph.
Monday Night
A slight chance of rain after midnight. Mostly cloudy, with a low around 36. Breezy, with a west wind 15 to 20 mph, with gusts as high as 29 mph. Chance of precipitation is 20%.
Tuesday
A slight chance of rain. Partly sunny, with a high near 43. Breezy, with a west northwest wind 20 to 24 mph, with gusts as high as 36 mph. Chance of precipitation is 20%.
Tuesday Night
A slight chance of rain and snow before midnight, then a slight chance of snow. Mostly cloudy, with a low around 20. Blustery, with a north northwest wind 17 to 22 mph, with gusts as high as 30 mph. Chance of precipitation is 20%.
Wednesday
Partly sunny, with a high near 28.
Wednesday Night
Partly cloudy, with a low around 16.
Thursday
A chance of snow. Mostly cloudy, with a high near 35. Breezy. Chance of precipitation is 30%.
Thursday Night
A chance of snow. Mostly cloudy, with a low around 21. Blustery. Chance of precipitation is 40%.
Friday
A chance of snow. Mostly cloudy, with a high near 28. Blustery. Chance of precipitation is 50%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Watertown SD
 44.91°N 97.17°W (Elev. 1755 ft)
Last Update:
6:36 pm CST Jan 9, 2026
Forecast Valid:
6pm CST Jan 9, 2026-6pm CST Jan 16, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation