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.

A Few Clouds

17°F

-8°C

Humidity 77%
Wind Speed NW 14 G 23 mph
Barometer 30.14 in (1023.5 mb)
Dewpoint 11°F (-12°C)
Visibility 10.00 mi
Wind Chill3°F (-16°C)
Last update 10 Jan 10:53 am CST
Extended Forecast for

Watertown SD

  • Today

    Today: Mostly sunny, with a high near 21. Blustery, with a northwest wind 13 to 21 mph, with gusts as high as 31 mph.

    High: 21 °F

    Mostly Sunny
    and Blustery

  • Tonight

    Tonight: Partly cloudy, with a low around 8. Northwest wind 6 to 16 mph becoming southwest after midnight. Winds could gust as high as 28 mph.

    Low: 8 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 36. South southwest wind 6 to 15 mph, with gusts as high as 26 mph.

    High: 36 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 25. West wind 9 to 13 mph, with gusts as high as 22 mph.

    Low: 25 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 45. West southwest wind 9 to 14 mph, with gusts as high as 24 mph.

    High: 45 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 37. West wind 14 to 17 mph, with gusts as high as 29 mph.

    Low: 37 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 47. Breezy, with a west northwest wind 17 to 22 mph, with gusts as high as 36 mph.

    High: 47 °F

    Mostly Sunny
    and Breezy

  • Tuesday Night

    Tuesday Night: A slight chance of rain and snow before midnight. Mostly cloudy, with a low around 21. North northwest wind 14 to 18 mph, with gusts as high as 30 mph. Chance of precipitation is 20%.

    Low: 21 °F

    Slight Chance
    Rain/Snow
    then Mostly
    Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 29. North wind 11 to 14 mph, with gusts as high as 24 mph.

    High: 29 °F

    Mostly Sunny

Detailed Forecast

Today
Mostly sunny, with a high near 21. Blustery, with a northwest wind 13 to 21 mph, with gusts as high as 31 mph.
Tonight
Partly cloudy, with a low around 8. Northwest wind 6 to 16 mph becoming southwest after midnight. Winds could gust as high as 28 mph.
Sunday
Mostly sunny, with a high near 36. South southwest wind 6 to 15 mph, with gusts as high as 26 mph.
Sunday Night
Partly cloudy, with a low around 25. West wind 9 to 13 mph, with gusts as high as 22 mph.
Monday
Mostly sunny, with a high near 45. West southwest wind 9 to 14 mph, with gusts as high as 24 mph.
Monday Night
Mostly cloudy, with a low around 37. West wind 14 to 17 mph, with gusts as high as 29 mph.
Tuesday
Mostly sunny, with a high near 47. Breezy, with a west northwest wind 17 to 22 mph, with gusts as high as 36 mph.
Tuesday Night
A slight chance of rain and snow before midnight. Mostly cloudy, with a low around 21. North northwest wind 14 to 18 mph, with gusts as high as 30 mph. Chance of precipitation is 20%.
Wednesday
Mostly sunny, with a high near 29. North wind 11 to 14 mph, with gusts as high as 24 mph.
Wednesday Night
Mostly cloudy, with a low around 20.
Thursday
A chance of snow. Partly sunny, with a high near 38. Breezy. Chance of precipitation is 30%.
Thursday Night
A chance of snow. Mostly cloudy, with a low around 23. Chance of precipitation is 40%.
Friday
A chance of snow. Mostly cloudy, with a high near 28. Blustery. Chance of precipitation is 40%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Watertown SD
 44.91°N 97.14°W (Elev. 1736 ft)
Last Update:
10:46 am CST Jan 10, 2026
Forecast Valid:
11am CST Jan 10, 2026-6pm CST Jan 16, 2026
 
Forecast Discussion
 
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Additional Resources

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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