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

39°F

4°C

Humidity 79%
Wind Speed Calm
Barometer 29.78 in (1008.7 mb)
Dewpoint 33°F (1°C)
Visibility 10.00 mi
Last update 21 Apr 2:53 am CDT
Extended Forecast for

Webster SD

  • Overnight

    Overnight: Mostly clear, with a low around 40. North northeast wind around 5 mph.

    Low: 40 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 72. Northeast wind around 8 mph becoming southeast in the afternoon.

    High: 72 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 51. South southeast wind 9 to 14 mph, with gusts as high as 23 mph.

    Low: 51 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 84. Breezy, with a south southeast wind 14 to 23 mph, with gusts as high as 37 mph.

    High: 84 °F

    Mostly Sunny
    then Mostly
    Sunny and
    Breezy

  • Wednesday Night

    Wednesday Night: A slight chance of showers before 1am, then showers likely and possibly a thunderstorm between 1am and 4am, then showers likely after 4am. Mostly cloudy, with a low around 59. Breezy, with a south wind around 23 mph, with gusts as high as 39 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 59 °F

    Breezy.
    Slight Chance
    Showers then
    Showers
    Likely

  • Thursday

    Thursday: A chance of showers. Mostly sunny, with a high near 72. Breezy, with a southwest wind around 21 mph, with gusts as high as 33 mph. Chance of precipitation is 30%.

    High: 72 °F

    Chance
    Showers and
    Breezy

  • Thursday Night

    Thursday Night: A slight chance of showers before 1am. Mostly cloudy, with a low around 35. Breezy, with a west wind 18 to 21 mph, with gusts as high as 33 mph. Chance of precipitation is 20%.

    Low: 35 °F

    Slight Chance
    Showers and
    Breezy

  • Friday

    Friday: Mostly sunny, with a high near 51. Breezy, with a west wind 18 to 21 mph, with gusts as high as 33 mph.

    High: 51 °F

    Mostly Sunny
    and Breezy

  • Friday Night

    Friday Night: Partly cloudy, with a low around 32. West northwest wind 10 to 18 mph, with gusts as high as 29 mph.

    Low: 32 °F

    Partly Cloudy

Detailed Forecast

Overnight
Mostly clear, with a low around 40. North northeast wind around 5 mph.
Tuesday
Sunny, with a high near 72. Northeast wind around 8 mph becoming southeast in the afternoon.
Tuesday Night
Mostly clear, with a low around 51. South southeast wind 9 to 14 mph, with gusts as high as 23 mph.
Wednesday
Mostly sunny, with a high near 84. Breezy, with a south southeast wind 14 to 23 mph, with gusts as high as 37 mph.
Wednesday Night
A slight chance of showers before 1am, then showers likely and possibly a thunderstorm between 1am and 4am, then showers likely after 4am. Mostly cloudy, with a low around 59. Breezy, with a south wind around 23 mph, with gusts as high as 39 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday
A chance of showers. Mostly sunny, with a high near 72. Breezy, with a southwest wind around 21 mph, with gusts as high as 33 mph. Chance of precipitation is 30%.
Thursday Night
A slight chance of showers before 1am. Mostly cloudy, with a low around 35. Breezy, with a west wind 18 to 21 mph, with gusts as high as 33 mph. Chance of precipitation is 20%.
Friday
Mostly sunny, with a high near 51. Breezy, with a west wind 18 to 21 mph, with gusts as high as 33 mph.
Friday Night
Partly cloudy, with a low around 32. West northwest wind 10 to 18 mph, with gusts as high as 29 mph.
Saturday
Mostly sunny, with a high near 49.
Saturday Night
Mostly cloudy, with a low around 32.
Sunday
A slight chance of showers. Partly sunny, with a high near 53. Chance of precipitation is 20%.
Sunday Night
A chance of rain and snow showers. Mostly cloudy, with a low around 35. Chance of precipitation is 30%.
Monday
A chance of rain and snow showers. Partly sunny, with a high near 52. Chance of precipitation is 30%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Webster SD
 45.33°N 97.52°W (Elev. 1831 ft)
Last Update:
2:36 am CDT Apr 21, 2026
Forecast Valid:
3am CDT Apr 21, 2026-6pm CDT Apr 27, 2026
 
Forecast Discussion
 
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Additional Resources

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National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation