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

24°F

-4°C

Humidity 88%
Wind Speed N 3 mph
Barometer 30.34 in (1029.7 mb)
Dewpoint 21°F (-6°C)
Visibility 10.00 mi
Last update 22 Mar 11:53 pm CDT
Extended Forecast for

Willow Lake SD

  • Overnight

    Overnight: Mostly clear, with a low around 22. East northeast wind around 7 mph becoming south southeast.

    Low: 22 °F

    Mostly Clear

  • Monday

    Monday: A chance of sprinkles between 4pm and 5pm, then a slight chance of showers after 5pm. Increasing clouds, with a high near 49. Breezy, with a south wind 9 to 14 mph increasing to 18 to 23 mph in the afternoon. Winds could gust as high as 32 mph. Chance of precipitation is 10%.

    High: 49 °F

    Mostly Sunny
    then Slight
    Chance
    Showers and
    Breezy

  • Monday Night

    Monday Night: A chance of sprinkles before 7pm. Mostly cloudy, then gradually becoming mostly clear, with a low around 31. Breezy, with a south wind 15 to 20 mph, with gusts as high as 28 mph.

    Low: 31 °F

    Breezy then
    Mostly Clear

  • Tuesday

    Tuesday: Partly sunny, with a high near 58. South southeast wind 11 to 13 mph.

    High: 58 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 40. South southeast wind around 10 mph.

    Low: 40 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 69. Southeast wind around 10 mph becoming southwest in the afternoon.

    High: 69 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: A slight chance of rain after 1am. Mostly cloudy, with a low around 39. South southwest wind 9 to 15 mph becoming north after midnight. Chance of precipitation is 20%.

    Low: 39 °F

    Mostly Cloudy
    then Slight
    Chance Rain

  • Thursday

    Thursday: Mostly sunny, with a high near 49. Breezy, with a north wind 18 to 24 mph, with gusts as high as 33 mph.

    High: 49 °F

    Mostly Sunny
    and Breezy

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 17. Blustery, with a north wind 17 to 22 mph decreasing to 10 to 15 mph after midnight.

    Low: 17 °F

    Partly Cloudy
    and Blustery
    then Partly
    Cloudy

Detailed Forecast

Overnight
Mostly clear, with a low around 22. East northeast wind around 7 mph becoming south southeast.
Monday
A chance of sprinkles between 4pm and 5pm, then a slight chance of showers after 5pm. Increasing clouds, with a high near 49. Breezy, with a south wind 9 to 14 mph increasing to 18 to 23 mph in the afternoon. Winds could gust as high as 32 mph. Chance of precipitation is 10%.
Monday Night
A chance of sprinkles before 7pm. Mostly cloudy, then gradually becoming mostly clear, with a low around 31. Breezy, with a south wind 15 to 20 mph, with gusts as high as 28 mph.
Tuesday
Partly sunny, with a high near 58. South southeast wind 11 to 13 mph.
Tuesday Night
Mostly cloudy, with a low around 40. South southeast wind around 10 mph.
Wednesday
Partly sunny, with a high near 69. Southeast wind around 10 mph becoming southwest in the afternoon.
Wednesday Night
A slight chance of rain after 1am. Mostly cloudy, with a low around 39. South southwest wind 9 to 15 mph becoming north after midnight. Chance of precipitation is 20%.
Thursday
Mostly sunny, with a high near 49. Breezy, with a north wind 18 to 24 mph, with gusts as high as 33 mph.
Thursday Night
Partly cloudy, with a low around 17. Blustery, with a north wind 17 to 22 mph decreasing to 10 to 15 mph after midnight.
Friday
Sunny, with a high near 41.
Friday Night
Mostly clear, with a low around 26.
Saturday
Mostly sunny, with a high near 52.
Saturday Night
Mostly clear, with a low around 32.
Sunday
Mostly sunny, with a high near 59.
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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:
12:36 am CDT Mar 23, 2026
Forecast Valid:
12am CDT Mar 23, 2026-6pm CDT Mar 29, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation