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

Heavy Rain Across the Southern US; Unsettled Pattern in the Pacific Northwest

A storm system will bring heavy rainfall, thunderstorms, and flooding threats to portions of the Southern Plains Friday, the Lower Mississippi Valley Saturday, and the Southeast into the Mid-Atlantic on Sunday. High elevation snow and mixed precipitation and rain in the lower elevations will impact the Pacific Northwest this weekend before a stronger system moves in early next week. Read More >

Current conditions at

Watertown, Watertown Municipal Airport (KATY)

Lat: 44.9°NLon: 97.15°WElev: 1745ft.

Fair

24°F

-4°C

Humidity 91%
Wind Speed S 3 mph
Barometer 30.04 in (1019.0 mb)
Dewpoint 22°F (-6°C)
Visibility 9.00 mi
Last update 13 Feb 5:53 am CST
Extended Forecast for

6 Miles WSW Watertown SD

  • Today

    Today: Sunny, with a high near 53. Southwest wind 3 to 7 mph.

    High: 53 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 30. South wind around 6 mph.

    Low: 30 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 52. South southwest wind 5 to 9 mph becoming west northwest in the afternoon.

    High: 52 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 30. West northwest wind around 6 mph.

    Low: 30 °F

    Mostly Clear

  • Sunday

    Sunday: Partly sunny, with a high near 56. South southwest wind 5 to 13 mph.

    High: 56 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 32. South wind 6 to 10 mph becoming north after midnight.

    Low: 32 °F

    Partly Cloudy

  • Washington's Birthday

    Washington's Birthday: Sunny, with a high near 54. North wind 6 to 10 mph becoming east in the afternoon.

    High: 54 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 37. East southeast wind 9 to 13 mph, with gusts as high as 21 mph.

    Low: 37 °F

    Partly Cloudy

  • Tuesday

    Tuesday: A chance of rain after noon. Partly sunny, with a high near 52. East wind 13 to 18 mph, with gusts as high as 30 mph. Chance of precipitation is 30%.

    High: 52 °F

    Partly Sunny
    then Chance
    Rain

Detailed Forecast

Today
Sunny, with a high near 53. Southwest wind 3 to 7 mph.
Tonight
Mostly clear, with a low around 30. South wind around 6 mph.
Saturday
Sunny, with a high near 52. South southwest wind 5 to 9 mph becoming west northwest in the afternoon.
Saturday Night
Mostly clear, with a low around 30. West northwest wind around 6 mph.
Sunday
Partly sunny, with a high near 56. South southwest wind 5 to 13 mph.
Sunday Night
Partly cloudy, with a low around 32. South wind 6 to 10 mph becoming north after midnight.
Washington's Birthday
Sunny, with a high near 54. North wind 6 to 10 mph becoming east in the afternoon.
Monday Night
Partly cloudy, with a low around 37. East southeast wind 9 to 13 mph, with gusts as high as 21 mph.
Tuesday
A chance of rain after noon. Partly sunny, with a high near 52. East wind 13 to 18 mph, with gusts as high as 30 mph. Chance of precipitation is 30%.
Tuesday Night
A chance of rain before midnight, then rain and snow likely. Mostly cloudy, with a low around 31. Chance of precipitation is 60%.
Wednesday
A chance of rain and snow. Partly sunny, with a high near 40. Chance of precipitation is 40%.
Wednesday Night
A slight chance of snow. Mostly cloudy, with a low around 19. Chance of precipitation is 20%.
Thursday
A slight chance of snow. Mostly cloudy, with a high near 31. Chance of precipitation is 20%.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
6 Miles WSW Watertown SD
 44.88°N 97.26°W (Elev. 1749 ft)
Last Update:
5:36 am CST Feb 13, 2026
Forecast Valid:
6am CST Feb 13, 2026-6pm CST Feb 19, 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