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.

Fair

61°F

16°C

Humidity 38%
Wind Speed S 5 mph
Barometer 29.83 in (1010.6 mb)
Dewpoint 35°F (2°C)
Visibility 10.00 mi
Last update 29 Mar 7:53 pm CDT
Extended Forecast for

Willow Lake SD

  • Tonight

    Tonight: Partly cloudy, with a low around 37. Light and variable wind becoming east northeast 6 to 11 mph after midnight.

    Low: 37 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 70. East northeast wind 11 to 15 mph becoming west in the afternoon.

    High: 70 °F

    Mostly Sunny

  • Monday Night

    Monday Night: A slight chance of rain after 1am. Mostly cloudy, with a low around 36. Breezy, with a north wind 10 to 15 mph increasing to 20 to 25 mph after midnight. Winds could gust as high as 40 mph. Chance of precipitation is 20%.

    Low: 36 °F

    Partly Cloudy
    then Slight
    Chance Rain
    and Breezy

  • Tuesday

    Tuesday: Partly sunny, with a high near 45. Breezy, with a north northwest wind 22 to 28 mph, with gusts as high as 37 mph.

    High: 45 °F

    Partly Sunny
    and Breezy

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 22. Blustery, with a northeast wind 11 to 20 mph.

    Low: 22 °F

    Mostly Cloudy
    and Blustery
    then Mostly
    Cloudy

  • Wednesday

    Wednesday: A chance of snow. Mostly cloudy, with a high near 41. East wind 13 to 16 mph. Chance of precipitation is 40%.

    High: 41 °F

    Chance Snow

  • Wednesday Night

    Wednesday Night: A chance of snow. Mostly cloudy, with a low around 29. East wind around 18 mph, with gusts as high as 26 mph. Chance of precipitation is 50%.

    Low: 29 °F

    Chance Snow

  • Thursday

    Thursday: A chance of snow. Mostly cloudy, with a high near 43. Breezy, with an east southeast wind 20 to 24 mph. Chance of precipitation is 50%.

    High: 43 °F

    Chance Snow
    and Breezy

  • Thursday Night

    Thursday Night: A chance of rain and snow. Mostly cloudy, with a low around 31. Breezy, with an east southeast wind 22 to 24 mph. Chance of precipitation is 30%.

    Low: 31 °F

    Chance
    Rain/Snow and
    Breezy

Detailed Forecast

Tonight
Partly cloudy, with a low around 37. Light and variable wind becoming east northeast 6 to 11 mph after midnight.
Monday
Mostly sunny, with a high near 70. East northeast wind 11 to 15 mph becoming west in the afternoon.
Monday Night
A slight chance of rain after 1am. Mostly cloudy, with a low around 36. Breezy, with a north wind 10 to 15 mph increasing to 20 to 25 mph after midnight. Winds could gust as high as 40 mph. Chance of precipitation is 20%.
Tuesday
Partly sunny, with a high near 45. Breezy, with a north northwest wind 22 to 28 mph, with gusts as high as 37 mph.
Tuesday Night
Mostly cloudy, with a low around 22. Blustery, with a northeast wind 11 to 20 mph.
Wednesday
A chance of snow. Mostly cloudy, with a high near 41. East wind 13 to 16 mph. Chance of precipitation is 40%.
Wednesday Night
A chance of snow. Mostly cloudy, with a low around 29. East wind around 18 mph, with gusts as high as 26 mph. Chance of precipitation is 50%.
Thursday
A chance of snow. Mostly cloudy, with a high near 43. Breezy, with an east southeast wind 20 to 24 mph. Chance of precipitation is 50%.
Thursday Night
A chance of rain and snow. Mostly cloudy, with a low around 31. Breezy, with an east southeast wind 22 to 24 mph. Chance of precipitation is 30%.
Friday
Rain and snow likely, becoming all rain after 1pm. Mostly cloudy, with a high near 46. Breezy. Chance of precipitation is 60%.
Friday Night
Rain and snow likely. Mostly cloudy, with a low around 30. Blustery. Chance of precipitation is 60%.
Saturday
A chance of rain and snow. Mostly cloudy, with a high near 40. Breezy. Chance of precipitation is 50%.
Saturday Night
A chance of rain and snow. Mostly cloudy, with a low around 24. Blustery. Chance of precipitation is 30%.
Sunday
A slight chance of snow. Mostly sunny, with a high near 42. Breezy. 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:
8:36 pm CDT Mar 29, 2026
Forecast Valid:
8pm CDT Mar 29, 2026-6pm CDT Apr 5, 2026
 
Forecast Discussion
 
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Additional Resources

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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