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.

Unknown Precip Fog/Mist

21°F

-6°C

Humidity 92%
Wind Speed NW 14 mph
Barometer 29.93 in (1016.0 mb)
Dewpoint 19°F (-7°C)
Visibility 4.00 mi
Wind Chill8°F (-13°C)
Last update 7 Mar 5:53 am CST
Extended Forecast for

Willow Lake SD

  • Today

    Today: Patchy fog before 9am. Otherwise, mostly cloudy through mid morning, then gradual clearing, with a high near 47. West northwest wind 10 to 17 mph becoming southwest in the afternoon. Winds could gust as high as 25 mph.

    High: 47 °F

    Patchy Fog
    then Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 33. Southwest wind 11 to 17 mph, with gusts as high as 25 mph.

    Low: 33 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 63. Breezy, with a west southwest wind 11 to 16 mph increasing to 17 to 22 mph in the afternoon. Winds could gust as high as 30 mph.

    High: 63 °F

    Mostly Sunny
    then Sunny
    and Breezy

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 36. West southwest wind 11 to 15 mph becoming north after midnight. Winds could gust as high as 23 mph.

    Low: 36 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 50. North wind 11 to 14 mph.

    High: 50 °F

    Mostly Sunny

  • Monday Night

    Monday Night: A chance of snow after midnight. Mostly cloudy, with a low around 28. East northeast wind 14 to 18 mph. Chance of precipitation is 30%.

    Low: 28 °F

    Mostly Cloudy
    then Chance
    Snow

  • Tuesday

    Tuesday: A chance of snow, mainly before noon. Mostly cloudy, with a high near 41. East northeast wind 14 to 17 mph. Chance of precipitation is 30%.

    High: 41 °F

    Chance Snow

  • Tuesday Night

    Tuesday Night: A chance of snow, mainly before midnight. Mostly cloudy, with a low around 23. North wind 10 to 14 mph, with gusts as high as 23 mph. Chance of precipitation is 30%.

    Low: 23 °F

    Chance Snow

  • Wednesday

    Wednesday: A slight chance of snow before noon. Mostly sunny, with a high near 41. Northwest wind 10 to 17 mph, with gusts as high as 29 mph. Chance of precipitation is 20%.

    High: 41 °F

    Slight Chance
    Snow then
    Mostly Sunny

Detailed Forecast

Today
Patchy fog before 9am. Otherwise, mostly cloudy through mid morning, then gradual clearing, with a high near 47. West northwest wind 10 to 17 mph becoming southwest in the afternoon. Winds could gust as high as 25 mph.
Tonight
Partly cloudy, with a low around 33. Southwest wind 11 to 17 mph, with gusts as high as 25 mph.
Sunday
Mostly sunny, with a high near 63. Breezy, with a west southwest wind 11 to 16 mph increasing to 17 to 22 mph in the afternoon. Winds could gust as high as 30 mph.
Sunday Night
Partly cloudy, with a low around 36. West southwest wind 11 to 15 mph becoming north after midnight. Winds could gust as high as 23 mph.
Monday
Mostly sunny, with a high near 50. North wind 11 to 14 mph.
Monday Night
A chance of snow after midnight. Mostly cloudy, with a low around 28. East northeast wind 14 to 18 mph. Chance of precipitation is 30%.
Tuesday
A chance of snow, mainly before noon. Mostly cloudy, with a high near 41. East northeast wind 14 to 17 mph. Chance of precipitation is 30%.
Tuesday Night
A chance of snow, mainly before midnight. Mostly cloudy, with a low around 23. North wind 10 to 14 mph, with gusts as high as 23 mph. Chance of precipitation is 30%.
Wednesday
A slight chance of snow before noon. Mostly sunny, with a high near 41. Northwest wind 10 to 17 mph, with gusts as high as 29 mph. Chance of precipitation is 20%.
Wednesday Night
Partly cloudy, with a low around 24.
Thursday
Mostly cloudy, with a high near 50. Breezy.
Thursday Night
A chance of rain and snow. Cloudy, with a low around 28. Chance of precipitation is 30%.
Friday
A slight chance of rain and snow. Mostly cloudy, with a high near 40. Breezy. Chance of precipitation is 20%.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Willow Lake SD
 44.62°N 97.65°W (Elev. 1762 ft)
Last Update:
6:36 am CST Mar 7, 2026
Forecast Valid:
6am CST Mar 7, 2026-6pm CDT Mar 13, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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