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

47°F

8°C

Humidity 74%
Wind Speed S 6 mph
Barometer 30.30 in (1026.9 mb)
Dewpoint 39°F (4°C)
Visibility 10.00 mi
Wind Chill44°F (7°C)
Last update 20 May 8:53 am CDT
Extended Forecast for

Webster SD

  • Today

    Today: Sunny, with a high near 62. South wind 6 to 14 mph, with gusts as high as 22 mph.

    High: 62 °F

    Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 41. South southeast wind 9 to 13 mph.

    Low: 41 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 65. South southeast wind 11 to 15 mph, with gusts as high as 24 mph.

    High: 65 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 42. Southeast wind 10 to 13 mph, with gusts as high as 22 mph.

    Low: 42 °F

    Partly Cloudy

  • Friday

    Friday: Showers likely, mainly after 1pm. Mostly cloudy, with a high near 58. East southeast wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 58 °F

    Chance
    Showers then
    Showers
    Likely

  • Friday Night

    Friday Night: Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 42. East southeast wind 6 to 11 mph, with gusts as high as 21 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 42 °F

    Showers
    Likely

  • Saturday

    Saturday: A slight chance of showers before 1pm. Partly sunny, with a high near 64. South wind around 7 mph becoming west in the afternoon. Chance of precipitation is 20%.

    High: 64 °F

    Slight Chance
    Showers

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 44. West southwest wind around 6 mph becoming south southeast in the evening.

    Low: 44 °F

    Partly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 76. South wind 7 to 9 mph.

    High: 76 °F

    Sunny

Detailed Forecast

Today
Sunny, with a high near 62. South wind 6 to 14 mph, with gusts as high as 22 mph.
Tonight
Partly cloudy, with a low around 41. South southeast wind 9 to 13 mph.
Thursday
Mostly sunny, with a high near 65. South southeast wind 11 to 15 mph, with gusts as high as 24 mph.
Thursday Night
Partly cloudy, with a low around 42. Southeast wind 10 to 13 mph, with gusts as high as 22 mph.
Friday
Showers likely, mainly after 1pm. Mostly cloudy, with a high near 58. East southeast wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.
Friday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 42. East southeast wind 6 to 11 mph, with gusts as high as 21 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Saturday
A slight chance of showers before 1pm. Partly sunny, with a high near 64. South wind around 7 mph becoming west in the afternoon. Chance of precipitation is 20%.
Saturday Night
Partly cloudy, with a low around 44. West southwest wind around 6 mph becoming south southeast in the evening.
Sunday
Sunny, with a high near 76. South wind 7 to 9 mph.
Sunday Night
Mostly clear, with a low around 51.
Memorial Day
Mostly sunny, with a high near 83.
Monday Night
Mostly clear, with a low around 55.
Tuesday
Mostly sunny, with a high near 81. Breezy.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Webster SD
 45.33°N 97.52°W (Elev. 1831 ft)
Last Update:
8:36 am CDT May 20, 2026
Forecast Valid:
9am CDT May 20, 2026-6pm CDT May 26, 2026
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation