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

43°F

6°C

Humidity 60%
Wind Speed S 10 mph
Barometer 29.92 in (1014.4 mb)
Dewpoint 30°F (-1°C)
Visibility 10.00 mi
Wind Chill37°F (3°C)
Last update 24 Mar 10:53 pm CDT
Extended Forecast for

Willow Lake SD

  • Tonight

    Tonight: Mostly cloudy, with a low around 38. South wind 11 to 13 mph.

    Low: 38 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 71. South wind 6 to 9 mph becoming west northwest in the morning.

    High: 71 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: A chance of sprinkles before 3am, then a slight chance of rain between 3am and 4am, then a chance of sprinkles after 4am. Mostly cloudy, with a low around 36. Breezy, with a southwest wind 6 to 11 mph becoming north northeast 16 to 21 mph after midnight. Winds could gust as high as 30 mph. Chance of precipitation is 20%.

    Low: 36 °F

    Partly Cloudy
    then Slight
    Chance Rain
    and Breezy

  • Thursday

    Thursday: Partly sunny, with a high near 45. Breezy, with a north wind 21 to 25 mph, with gusts as high as 36 mph.

    High: 45 °F

    Partly Sunny
    and Breezy

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 18. North wind 9 to 18 mph.

    Low: 18 °F

    Partly Cloudy

  • Friday

    Friday: Sunny, with a high near 41. Northwest wind 8 to 14 mph.

    High: 41 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 27. West northwest wind 9 to 16 mph becoming south after midnight. Winds could gust as high as 24 mph.

    Low: 27 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 59. Breezy, with a south wind 16 to 20 mph, with gusts as high as 28 mph.

    High: 59 °F

    Mostly Sunny
    and Breezy

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 37. South southeast wind 13 to 16 mph.

    Low: 37 °F

    Partly Cloudy

Detailed Forecast

Tonight
Mostly cloudy, with a low around 38. South wind 11 to 13 mph.
Wednesday
Mostly sunny, with a high near 71. South wind 6 to 9 mph becoming west northwest in the morning.
Wednesday Night
A chance of sprinkles before 3am, then a slight chance of rain between 3am and 4am, then a chance of sprinkles after 4am. Mostly cloudy, with a low around 36. Breezy, with a southwest wind 6 to 11 mph becoming north northeast 16 to 21 mph after midnight. Winds could gust as high as 30 mph. Chance of precipitation is 20%.
Thursday
Partly sunny, with a high near 45. Breezy, with a north wind 21 to 25 mph, with gusts as high as 36 mph.
Thursday Night
Partly cloudy, with a low around 18. North wind 9 to 18 mph.
Friday
Sunny, with a high near 41. Northwest wind 8 to 14 mph.
Friday Night
Mostly clear, with a low around 27. West northwest wind 9 to 16 mph becoming south after midnight. Winds could gust as high as 24 mph.
Saturday
Mostly sunny, with a high near 59. Breezy, with a south wind 16 to 20 mph, with gusts as high as 28 mph.
Saturday Night
Partly cloudy, with a low around 37. South southeast wind 13 to 16 mph.
Sunday
Mostly sunny, with a high near 66.
Sunday Night
Mostly clear, with a low around 41.
Monday
Partly sunny, with a high near 67. Breezy.
Monday Night
A slight chance of rain. Partly cloudy, with a low around 41. Breezy. Chance of precipitation is 20%.
Tuesday
A slight chance of rain. Partly sunny, with a high near 62. 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:
11:36 pm CDT Mar 24, 2026
Forecast Valid:
11pm CDT Mar 24, 2026-6pm CDT Mar 31, 2026
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation