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

15°F

-9°C

Humidity 80%
Wind Speed N 5 mph
Barometer 30.44 in (1033.7 mb)
Dewpoint 10°F (-12°C)
Visibility 10.00 mi
Wind Chill7°F (-14°C)
Last update 7 Apr 12:53 am CDT
Extended Forecast for

Willow Lake SD

  • Overnight

    Overnight: Mostly clear, with a low around 18. East southeast wind 10 to 13 mph.

    Low: 18 °F

    Mostly Clear

  • Tuesday

    Tuesday: Increasing clouds, with a high near 42. Breezy, with a south southeast wind 14 to 24 mph, with gusts as high as 34 mph.

    High: 42 °F

    Increasing
    Clouds and
    Breezy

  • Tuesday Night

    Tuesday Night: A chance of rain, mainly after 5am. Mostly cloudy, with a low around 33. Breezy, with a south wind 22 to 26 mph, with gusts as high as 37 mph. Chance of precipitation is 30%.

    Low: 33 °F

    Breezy.
    Mostly Cloudy
    then Chance
    Rain

  • Wednesday

    Wednesday: A chance of rain, mainly before 7am. Partly sunny, with a high near 53. Breezy, with a south southwest wind 13 to 18 mph becoming west 20 to 25 mph in the afternoon. Winds could gust as high as 36 mph. Chance of precipitation is 30%.

    High: 53 °F

    Chance Rain
    and Breezy

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 25. Breezy, with a west northwest wind 13 to 23 mph, with gusts as high as 31 mph.

    Low: 25 °F

    Mostly Clear
    and Breezy
    then Mostly
    Clear

  • Thursday

    Thursday: A chance of rain and snow after 1pm. Mostly sunny, with a high near 45. North northwest wind around 11 mph. Chance of precipitation is 30%.

    High: 45 °F

    Mostly Sunny
    then Chance
    Rain/Snow

  • Thursday Night

    Thursday Night: A slight chance of rain and snow. Partly cloudy, with a low around 26. North northeast wind 6 to 9 mph. Chance of precipitation is 20%.

    Low: 26 °F

    Slight Chance
    Rain/Snow

  • Friday

    Friday: Mostly sunny, with a high near 54. North northeast wind 6 to 9 mph becoming east southeast in the afternoon.

    High: 54 °F

    Mostly Sunny

  • Friday Night

    Friday Night: A slight chance of rain. Partly cloudy, with a low around 37. Southeast wind 9 to 14 mph, with gusts as high as 22 mph. Chance of precipitation is 20%.

    Low: 37 °F

    Slight Chance
    Rain

Detailed Forecast

Overnight
Mostly clear, with a low around 18. East southeast wind 10 to 13 mph.
Tuesday
Increasing clouds, with a high near 42. Breezy, with a south southeast wind 14 to 24 mph, with gusts as high as 34 mph.
Tuesday Night
A chance of rain, mainly after 5am. Mostly cloudy, with a low around 33. Breezy, with a south wind 22 to 26 mph, with gusts as high as 37 mph. Chance of precipitation is 30%.
Wednesday
A chance of rain, mainly before 7am. Partly sunny, with a high near 53. Breezy, with a south southwest wind 13 to 18 mph becoming west 20 to 25 mph in the afternoon. Winds could gust as high as 36 mph. Chance of precipitation is 30%.
Wednesday Night
Mostly clear, with a low around 25. Breezy, with a west northwest wind 13 to 23 mph, with gusts as high as 31 mph.
Thursday
A chance of rain and snow after 1pm. Mostly sunny, with a high near 45. North northwest wind around 11 mph. Chance of precipitation is 30%.
Thursday Night
A slight chance of rain and snow. Partly cloudy, with a low around 26. North northeast wind 6 to 9 mph. Chance of precipitation is 20%.
Friday
Mostly sunny, with a high near 54. North northeast wind 6 to 9 mph becoming east southeast in the afternoon.
Friday Night
A slight chance of rain. Partly cloudy, with a low around 37. Southeast wind 9 to 14 mph, with gusts as high as 22 mph. Chance of precipitation is 20%.
Saturday
A chance of rain. Mostly cloudy, with a high near 57. Breezy. Chance of precipitation is 40%.
Saturday Night
A chance of rain. Mostly cloudy, with a low around 50. Breezy. Chance of precipitation is 50%.
Sunday
A chance of rain. Mostly cloudy, with a high near 71. Breezy. Chance of precipitation is 50%.
Sunday Night
A chance of rain. Mostly cloudy, with a low around 48. Chance of precipitation is 50%.
Monday
A chance of rain. Partly sunny, with a high near 66. Chance of precipitation is 50%.
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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:
1:01 am CDT Apr 7, 2026
Forecast Valid:
1am CDT Apr 7, 2026-6pm CDT Apr 13, 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