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.

Overcast

37°F

3°C

Humidity 93%
Wind Speed N 5 mph
Barometer 30.04 in (1018.8 mb)
Dewpoint 35°F (2°C)
Visibility 10.00 mi
Wind Chill33°F (1°C)
Last update 26 Apr 3:53 am CDT
Extended Forecast for

Willow Lake SD

  • Today

    Today: Showers, mainly after 3pm. High near 50. Breezy, with an east wind 6 to 11 mph increasing to 16 to 21 mph in the afternoon. Winds could gust as high as 30 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 50 °F

    Chance
    Showers then
    Showers and
    Breezy

  • Tonight

    Tonight: Showers and possibly a thunderstorm before 2am, then showers likely. Patchy fog between 9pm and 11pm. Low around 41. Breezy, with an east northeast wind 16 to 20 mph, with gusts as high as 29 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.

    Low: 41 °F

    Showers and
    Patchy Fog

  • Monday

    Monday: Showers. High near 47. Breezy, with a north northwest wind 17 to 22 mph increasing to 24 to 29 mph in the afternoon. Winds could gust as high as 40 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

    High: 47 °F

    Showers and
    Breezy

  • Monday Night

    Monday Night: A slight chance of showers before 1am. Cloudy during the early evening, then gradual clearing, with a low around 28. Blustery, with a northwest wind 23 to 28 mph decreasing to 15 to 20 mph after midnight. Winds could gust as high as 39 mph. Chance of precipitation is 20%.

    Low: 28 °F

    Slight Chance
    Showers and
    Blustery

  • Tuesday

    Tuesday: Partly sunny, with a high near 49. North northwest wind around 14 mph.

    High: 49 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 32. West wind 6 to 11 mph.

    Low: 32 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: A chance of showers, mainly after 1pm. Mostly sunny, with a high near 55. West southwest wind 6 to 13 mph. Chance of precipitation is 30%.

    High: 55 °F

    Chance
    Showers

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 33. North northwest wind 5 to 10 mph becoming east after midnight.

    Low: 33 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 56. Northeast wind 5 to 14 mph becoming north northwest in the afternoon.

    High: 56 °F

    Mostly Sunny

Detailed Forecast

Today
Showers, mainly after 3pm. High near 50. Breezy, with an east wind 6 to 11 mph increasing to 16 to 21 mph in the afternoon. Winds could gust as high as 30 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
Tonight
Showers and possibly a thunderstorm before 2am, then showers likely. Patchy fog between 9pm and 11pm. Low around 41. Breezy, with an east northeast wind 16 to 20 mph, with gusts as high as 29 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.
Monday
Showers. High near 47. Breezy, with a north northwest wind 17 to 22 mph increasing to 24 to 29 mph in the afternoon. Winds could gust as high as 40 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Monday Night
A slight chance of showers before 1am. Cloudy during the early evening, then gradual clearing, with a low around 28. Blustery, with a northwest wind 23 to 28 mph decreasing to 15 to 20 mph after midnight. Winds could gust as high as 39 mph. Chance of precipitation is 20%.
Tuesday
Partly sunny, with a high near 49. North northwest wind around 14 mph.
Tuesday Night
Mostly cloudy, with a low around 32. West wind 6 to 11 mph.
Wednesday
A chance of showers, mainly after 1pm. Mostly sunny, with a high near 55. West southwest wind 6 to 13 mph. Chance of precipitation is 30%.
Wednesday Night
Partly cloudy, with a low around 33. North northwest wind 5 to 10 mph becoming east after midnight.
Thursday
Mostly sunny, with a high near 56. Northeast wind 5 to 14 mph becoming north northwest in the afternoon.
Thursday Night
Partly cloudy, with a low around 32.
Friday
Sunny, with a high near 60.
Friday Night
Mostly clear, with a low around 38.
Saturday
Sunny, with a high near 69.
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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:
3:36 am CDT Apr 26, 2026
Forecast Valid:
4am CDT Apr 26, 2026-6pm CDT May 2, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

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