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.

A Few Clouds

40°F

4°C

Humidity 43%
Wind Speed N 8 mph
Barometer 30.27 in (1027.1 mb)
Dewpoint 19°F (-7°C)
Visibility 10.00 mi
Wind Chill35°F (2°C)
Last update 19 Apr 1:53 pm CDT
Extended Forecast for

Willow Lake SD

  • This Afternoon

    This Afternoon: Sunny, with a high near 47. North wind around 9 mph.

    High: 47 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 29. North northeast wind 6 to 14 mph becoming southeast after midnight. Winds could gust as high as 22 mph.

    Low: 29 °F

    Mostly Clear

  • Monday

    Monday: Mostly sunny, with a high near 69. Breezy, with a south southwest wind 18 to 23 mph increasing to 24 to 29 mph in the morning.

    High: 69 °F

    Mostly Sunny
    and Breezy

  • Monday Night

    Monday Night: Mostly cloudy, then gradually becoming clear, with a low around 41. South southwest wind 7 to 14 mph becoming north northeast after midnight.

    Low: 41 °F

    Decreasing
    Clouds

  • Tuesday

    Tuesday: Sunny, with a high near 75. Northeast wind 8 to 10 mph.

    High: 75 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 53. East southeast wind 10 to 18 mph, with gusts as high as 28 mph.

    Low: 53 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 85. Breezy, with a south southeast wind 18 to 28 mph, with gusts as high as 39 mph.

    High: 85 °F

    Mostly Sunny
    and Breezy

  • Wednesday Night

    Wednesday Night: Showers likely, mainly after 1am. Mostly cloudy, with a low around 57. Windy, with a south wind 29 to 32 mph, with gusts as high as 40 mph. Chance of precipitation is 60%.

    Low: 57 °F

    Windy. Slight
    Chance
    Showers then
    Showers
    Likely

  • Thursday

    Thursday: A chance of showers. Mostly sunny, with a high near 70. Windy, with a west southwest wind 26 to 32 mph, with gusts as high as 43 mph. Chance of precipitation is 40%.

    High: 70 °F

    Chance
    Showers and
    Windy

Detailed Forecast

This Afternoon
Sunny, with a high near 47. North wind around 9 mph.
Tonight
Mostly clear, with a low around 29. North northeast wind 6 to 14 mph becoming southeast after midnight. Winds could gust as high as 22 mph.
Monday
Mostly sunny, with a high near 69. Breezy, with a south southwest wind 18 to 23 mph increasing to 24 to 29 mph in the morning.
Monday Night
Mostly cloudy, then gradually becoming clear, with a low around 41. South southwest wind 7 to 14 mph becoming north northeast after midnight.
Tuesday
Sunny, with a high near 75. Northeast wind 8 to 10 mph.
Tuesday Night
Mostly clear, with a low around 53. East southeast wind 10 to 18 mph, with gusts as high as 28 mph.
Wednesday
Mostly sunny, with a high near 85. Breezy, with a south southeast wind 18 to 28 mph, with gusts as high as 39 mph.
Wednesday Night
Showers likely, mainly after 1am. Mostly cloudy, with a low around 57. Windy, with a south wind 29 to 32 mph, with gusts as high as 40 mph. Chance of precipitation is 60%.
Thursday
A chance of showers. Mostly sunny, with a high near 70. Windy, with a west southwest wind 26 to 32 mph, with gusts as high as 43 mph. Chance of precipitation is 40%.
Thursday Night
A slight chance of rain showers before 4am, then a slight chance of snow showers. Mostly cloudy, with a low around 34. Windy. Chance of precipitation is 20%.
Friday
A slight chance of snow showers. Mostly sunny, with a high near 52. Breezy. Chance of precipitation is 10%.
Friday Night
Partly cloudy, with a low around 29. Blustery.
Saturday
A slight chance of rain and snow showers. Mostly sunny, with a high near 50. 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:
1:31 pm CDT Apr 19, 2026
Forecast Valid:
2pm CDT Apr 19, 2026-6pm CDT Apr 25, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation