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.

Fair

6°F

-14°C

Humidity 83%
Wind Speed S 3 mph
Barometer 30.32 in (1030.7 mb)
Dewpoint 2°F (-17°C)
Visibility 10.00 mi
Last update 11 Jan 4:53 am CST
Extended Forecast for

Watertown SD

  • Today

    Today: Mostly sunny, with a high near 38. South southwest wind 5 to 10 mph increasing to 12 to 17 mph in the afternoon. Winds could gust as high as 28 mph.

    High: 38 °F

    Mostly Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 25. West wind 8 to 13 mph, with gusts as high as 22 mph.

    Low: 25 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 44. West southwest wind 8 to 13 mph, with gusts as high as 21 mph.

    High: 44 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 34. West southwest wind 11 to 17 mph, with gusts as high as 29 mph.

    Low: 34 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 45. Breezy, with a west northwest wind 17 to 22 mph, with gusts as high as 36 mph.

    High: 45 °F

    Partly Sunny
    and Breezy

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 18. Blustery, with a north northwest wind 17 to 20 mph, with gusts as high as 31 mph.

    Low: 18 °F

    Mostly Cloudy
    and Blustery
    then Mostly
    Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 28. North wind 7 to 16 mph, with gusts as high as 26 mph.

    High: 28 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 19. North wind 6 to 11 mph becoming south in the evening. Winds could gust as high as 21 mph.

    Low: 19 °F

    Mostly Cloudy

  • Thursday

    Thursday: A chance of snow, mainly after noon. Partly sunny, with a high near 37. Breezy, with a south wind 13 to 22 mph becoming west northwest in the afternoon. Winds could gust as high as 36 mph. Chance of precipitation is 30%.

    High: 37 °F

    Chance Snow
    and Breezy

Detailed Forecast

Today
Mostly sunny, with a high near 38. South southwest wind 5 to 10 mph increasing to 12 to 17 mph in the afternoon. Winds could gust as high as 28 mph.
Tonight
Partly cloudy, with a low around 25. West wind 8 to 13 mph, with gusts as high as 22 mph.
Monday
Mostly sunny, with a high near 44. West southwest wind 8 to 13 mph, with gusts as high as 21 mph.
Monday Night
Mostly cloudy, with a low around 34. West southwest wind 11 to 17 mph, with gusts as high as 29 mph.
Tuesday
Partly sunny, with a high near 45. Breezy, with a west northwest wind 17 to 22 mph, with gusts as high as 36 mph.
Tuesday Night
Mostly cloudy, with a low around 18. Blustery, with a north northwest wind 17 to 20 mph, with gusts as high as 31 mph.
Wednesday
Mostly sunny, with a high near 28. North wind 7 to 16 mph, with gusts as high as 26 mph.
Wednesday Night
Mostly cloudy, with a low around 19. North wind 6 to 11 mph becoming south in the evening. Winds could gust as high as 21 mph.
Thursday
A chance of snow, mainly after noon. Partly sunny, with a high near 37. Breezy, with a south wind 13 to 22 mph becoming west northwest in the afternoon. Winds could gust as high as 36 mph. Chance of precipitation is 30%.
Thursday Night
A chance of snow. Mostly cloudy, with a low around 20. Blustery. Chance of precipitation is 50%.
Friday
A chance of snow. Mostly cloudy, with a high near 26. Blustery. Chance of precipitation is 50%.
Friday Night
Mostly cloudy, with a low around 4. Blustery.
Saturday
Partly sunny, with a high near 19.
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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:
4:36 am CST Jan 11, 2026
Forecast Valid:
5am CST Jan 11, 2026-6pm CST Jan 17, 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