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 96%
Wind Speed Calm
Barometer 30.05 in (1019.0 mb)
Dewpoint 23°F (-5°C)
Visibility 10.00 mi
Last update 13 Feb 2:53 am CST
Extended Forecast for

Willow Lake SD

  • Overnight

    Overnight: Mostly clear, with a steady temperature around 34. Calm wind.

    Low: 34 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 52. Calm wind becoming south southwest 5 to 8 mph in the morning.

    High: 52 °F

    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 32. South wind 6 to 8 mph.

    Low: 32 °F

    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 52. South wind 6 to 9 mph becoming northwest in the afternoon.

    High: 52 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 31. Northwest wind around 6 mph becoming south southwest after midnight.

    Low: 31 °F

    Mostly Clear

  • Sunday

    Sunday: Partly sunny, with a high near 57. South wind 6 to 14 mph.

    High: 57 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 33. South wind 8 to 10 mph becoming north after midnight.

    Low: 33 °F

    Partly Cloudy

  • Washington's Birthday

    Washington's Birthday: Sunny, with a high near 56. East wind 8 to 11 mph.

    High: 56 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 39. East southeast wind 10 to 15 mph, with gusts as high as 23 mph.

    Low: 39 °F

    Partly Cloudy

Detailed Forecast

Overnight
Mostly clear, with a steady temperature around 34. Calm wind.
Friday
Sunny, with a high near 52. Calm wind becoming south southwest 5 to 8 mph in the morning.
Friday Night
Partly cloudy, with a low around 32. South wind 6 to 8 mph.
Saturday
Sunny, with a high near 52. South wind 6 to 9 mph becoming northwest in the afternoon.
Saturday Night
Mostly clear, with a low around 31. Northwest wind around 6 mph becoming south southwest after midnight.
Sunday
Partly sunny, with a high near 57. South wind 6 to 14 mph.
Sunday Night
Partly cloudy, with a low around 33. South wind 8 to 10 mph becoming north after midnight.
Washington's Birthday
Sunny, with a high near 56. East wind 8 to 11 mph.
Monday Night
Partly cloudy, with a low around 39. East southeast wind 10 to 15 mph, with gusts as high as 23 mph.
Tuesday
A chance of rain after noon. Partly sunny, with a high near 54. Breezy. Chance of precipitation is 30%.
Tuesday Night
Rain likely. Mostly cloudy, with a low around 32. Chance of precipitation is 60%.
Wednesday
A chance of rain and snow. Partly sunny, with a high near 41. Chance of precipitation is 40%.
Wednesday Night
A slight chance of snow. Mostly cloudy, with a low around 22. Chance of precipitation is 20%.
Thursday
A chance of snow. Mostly cloudy, with a high near 34. Chance of precipitation is 30%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Willow Lake SD
 44.62°N 97.65°W (Elev. 1762 ft)
Last Update:
3:36 am CST Feb 13, 2026
Forecast Valid:
3am 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