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.

Overcast

36°F

2°C

Humidity 73%
Wind Speed NW 13 mph
Barometer 30.34 in (1028.9 mb)
Dewpoint 28°F (-2°C)
Visibility 10.00 mi
Wind Chill27°F (-3°C)
Last update 5 Apr 10:53 pm CDT
Extended Forecast for

Willow Lake SD

  • Tonight

    Tonight: Mostly cloudy, with a low around 25. North wind 8 to 10 mph.

    Low: 25 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 33. North wind 11 to 14 mph, with gusts as high as 22 mph.

    High: 33 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 16. North northeast wind 10 to 14 mph becoming east after midnight.

    Low: 16 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: A slight chance of snow before 1pm. Mostly cloudy, with a high near 37. Breezy, with a south southeast wind 14 to 24 mph, with gusts as high as 33 mph. Chance of precipitation is 20%.

    High: 37 °F

    Slight Chance
    Snow and
    Breezy

  • Tuesday Night

    Tuesday Night: A slight chance of rain after 1am. Mostly cloudy, with a low around 31. Breezy, with a south southeast wind 22 to 24 mph, with gusts as high as 34 mph. Chance of precipitation is 20%.

    Low: 31 °F

    Breezy.
    Mostly Cloudy
    then Slight
    Chance Rain

  • Wednesday

    Wednesday: A chance of rain before 1pm. Partly sunny, with a high near 54. Breezy, with a south wind 16 to 23 mph becoming west northwest in the afternoon. Winds could gust as high as 33 mph. Chance of precipitation is 30%.

    High: 54 °F

    Chance Rain
    and Breezy

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 28. Blustery, with a west wind 16 to 22 mph, with gusts as high as 30 mph.

    Low: 28 °F

    Partly Cloudy
    and Blustery
    then Partly
    Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 46. Northwest wind 13 to 15 mph.

    High: 46 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: A slight chance of rain and snow after 1am. Partly cloudy, with a low around 27. North northwest wind 7 to 10 mph becoming east southeast after midnight. Chance of precipitation is 20%.

    Low: 27 °F

    Partly Cloudy
    then Slight
    Chance
    Rain/Snow

Detailed Forecast

Tonight
Mostly cloudy, with a low around 25. North wind 8 to 10 mph.
Monday
Mostly sunny, with a high near 33. North wind 11 to 14 mph, with gusts as high as 22 mph.
Monday Night
Mostly cloudy, with a low around 16. North northeast wind 10 to 14 mph becoming east after midnight.
Tuesday
A slight chance of snow before 1pm. Mostly cloudy, with a high near 37. Breezy, with a south southeast wind 14 to 24 mph, with gusts as high as 33 mph. Chance of precipitation is 20%.
Tuesday Night
A slight chance of rain after 1am. Mostly cloudy, with a low around 31. Breezy, with a south southeast wind 22 to 24 mph, with gusts as high as 34 mph. Chance of precipitation is 20%.
Wednesday
A chance of rain before 1pm. Partly sunny, with a high near 54. Breezy, with a south wind 16 to 23 mph becoming west northwest in the afternoon. Winds could gust as high as 33 mph. Chance of precipitation is 30%.
Wednesday Night
Partly cloudy, with a low around 28. Blustery, with a west wind 16 to 22 mph, with gusts as high as 30 mph.
Thursday
Mostly sunny, with a high near 46. Northwest wind 13 to 15 mph.
Thursday Night
A slight chance of rain and snow after 1am. Partly cloudy, with a low around 27. North northwest wind 7 to 10 mph becoming east southeast after midnight. Chance of precipitation is 20%.
Friday
A chance of rain and snow before 1pm, then a chance of rain. Mostly sunny, with a high near 53. Chance of precipitation is 30%.
Friday Night
A chance of rain. Mostly cloudy, with a low around 38. Chance of precipitation is 30%.
Saturday
A chance of rain. Mostly cloudy, with a high near 58. Breezy. Chance of precipitation is 40%.
Saturday Night
A chance of rain. Mostly cloudy, with a low around 47. Chance of precipitation is 50%.
Sunday
Rain likely. Mostly cloudy, with a high near 66. Chance of precipitation is 60%.
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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:
10:36 pm CDT Apr 5, 2026
Forecast Valid:
11pm CDT Apr 5, 2026-6pm CDT Apr 12, 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