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

Watertown, Watertown Municipal Airport (KATY)

Lat: 44.9°NLon: 97.15°WElev: 1745ft.

Partly Cloudy

24°F

-4°C

Humidity 91%
Wind Speed NE 13 mph
Barometer 29.93 in (1015.0 mb)
Dewpoint 22°F (-6°C)
Visibility 10.00 mi
Wind Chill12°F (-11°C)
Last update 10 Mar 1:53 am CDT
Extended Forecast for

Willow Lake SD

  • Overnight

    Overnight: Mostly cloudy, with a low around 25. Blustery, with a northeast wind 18 to 20 mph, with gusts as high as 29 mph.

    Low: 25 °F

    Mostly Cloudy
    and Blustery

  • Tuesday

    Tuesday: A slight chance of snow after 5pm. Mostly cloudy, with a high near 39. East northeast wind 11 to 14 mph. Chance of precipitation is 10%.

    High: 39 °F

    Mostly Cloudy
    then Slight
    Chance Snow

  • Tuesday Night

    Tuesday Night: Snow, mainly between 7pm and 1am. Low around 24. North northeast wind 10 to 14 mph. Chance of precipitation is 90%. New snow accumulation of less than a half inch possible.

    Low: 24 °F

    Snow

  • Wednesday

    Wednesday: A slight chance of rain and snow after 1pm. Mostly cloudy, then gradually becoming sunny, with a high near 40. Northwest wind 10 to 16 mph. Chance of precipitation is 20%.

    High: 40 °F

    Partly Sunny
    then Slight
    Chance
    Rain/Snow

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 25. Northwest wind 7 to 13 mph becoming south after midnight.

    Low: 25 °F

    Partly Cloudy

  • Thursday

    Thursday: A chance of rain and snow after 1pm. Mostly cloudy, with a high near 49. South wind 14 to 18 mph. Chance of precipitation is 40%.

    High: 49 °F

    Mostly Cloudy
    then Chance
    Rain/Snow

  • Thursday Night

    Thursday Night: A chance of rain and snow before 1am. Mostly cloudy, with a low around 25. Blustery, with a west northwest wind 17 to 22 mph. Chance of precipitation is 30%.

    Low: 25 °F

    Chance
    Rain/Snow and
    Blustery

  • Friday

    Friday: A slight chance of snow. Mostly cloudy, with a high near 38. North northwest wind 10 to 13 mph becoming northeast in the afternoon. Chance of precipitation is 20%.

    High: 38 °F

    Slight Chance
    Snow

  • Friday Night

    Friday Night: A chance of snow. Cloudy, with a low around 26. East wind 10 to 13 mph. Chance of precipitation is 40%.

    Low: 26 °F

    Chance Snow

Detailed Forecast

Overnight
Mostly cloudy, with a low around 25. Blustery, with a northeast wind 18 to 20 mph, with gusts as high as 29 mph.
Tuesday
A slight chance of snow after 5pm. Mostly cloudy, with a high near 39. East northeast wind 11 to 14 mph. Chance of precipitation is 10%.
Tuesday Night
Snow, mainly between 7pm and 1am. Low around 24. North northeast wind 10 to 14 mph. Chance of precipitation is 90%. New snow accumulation of less than a half inch possible.
Wednesday
A slight chance of rain and snow after 1pm. Mostly cloudy, then gradually becoming sunny, with a high near 40. Northwest wind 10 to 16 mph. Chance of precipitation is 20%.
Wednesday Night
Partly cloudy, with a low around 25. Northwest wind 7 to 13 mph becoming south after midnight.
Thursday
A chance of rain and snow after 1pm. Mostly cloudy, with a high near 49. South wind 14 to 18 mph. Chance of precipitation is 40%.
Thursday Night
A chance of rain and snow before 1am. Mostly cloudy, with a low around 25. Blustery, with a west northwest wind 17 to 22 mph. Chance of precipitation is 30%.
Friday
A slight chance of snow. Mostly cloudy, with a high near 38. North northwest wind 10 to 13 mph becoming northeast in the afternoon. Chance of precipitation is 20%.
Friday Night
A chance of snow. Cloudy, with a low around 26. East wind 10 to 13 mph. Chance of precipitation is 40%.
Saturday
A chance of snow. Cloudy, with a high near 39. Chance of precipitation is 50%.
Saturday Night
Snow. Low around 14. Blustery. Chance of precipitation is 80%.
Sunday
A chance of snow. Mostly cloudy, with a high near 23. Blustery. Chance of precipitation is 40%.
Sunday Night
Partly cloudy, with a low around 7.
Monday
A slight chance of snow. Partly sunny, with a high near 26. Chance of precipitation is 20%.
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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:
11:36 pm CDT Mar 9, 2026
Forecast Valid:
2am CDT Mar 10, 2026-6pm CDT Mar 16, 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