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

60°F

16°C

Humidity 50%
Wind Speed S 14 G 25 mph
Barometer 30.14 in (1020.8 mb)
Dewpoint 41°F (5°C)
Visibility 10.00 mi
Last update 21 May 11:53 am CDT
Extended Forecast for

Webster SD

  • This Afternoon

    This Afternoon: Partly sunny, with a high near 65. South southeast wind around 15 mph, with gusts as high as 24 mph.

    High: 65 °F

    Partly Sunny

  • Tonight

    Tonight: Mostly cloudy, then gradually becoming mostly clear, with a low around 43. Southeast wind around 14 mph, with gusts as high as 25 mph.

    Low: 43 °F

    Decreasing
    Clouds

  • Friday

    Friday: Showers and possibly a thunderstorm. High near 54. Breezy, with an east southeast wind 15 to 20 mph, with gusts as high as 33 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.

    High: 54 °F

    Showers and
    Breezy

  • Friday Night

    Friday Night: Showers likely, mainly between 8pm and 11pm. Cloudy, with a low around 42. Southeast wind 8 to 14 mph becoming west after midnight. Winds could gust as high as 23 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 42 °F

    Showers
    Likely then
    Chance
    Showers

  • Saturday

    Saturday: Mostly cloudy, with a high near 65. West northwest wind around 10 mph, with gusts as high as 20 mph.

    High: 65 °F

    Mostly Cloudy

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 45. West northwest wind 5 to 7 mph becoming light and variable.

    Low: 45 °F

    Partly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 77. South wind 8 to 10 mph.

    High: 77 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 52. South southeast wind 7 to 13 mph, with gusts as high as 23 mph.

    Low: 52 °F

    Mostly Clear

  • Memorial Day

    Memorial Day: Sunny, with a high near 84. South wind 13 to 16 mph, with gusts as high as 25 mph.

    High: 84 °F

    Sunny

Detailed Forecast

This Afternoon
Partly sunny, with a high near 65. South southeast wind around 15 mph, with gusts as high as 24 mph.
Tonight
Mostly cloudy, then gradually becoming mostly clear, with a low around 43. Southeast wind around 14 mph, with gusts as high as 25 mph.
Friday
Showers and possibly a thunderstorm. High near 54. Breezy, with an east southeast wind 15 to 20 mph, with gusts as high as 33 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.
Friday Night
Showers likely, mainly between 8pm and 11pm. Cloudy, with a low around 42. Southeast wind 8 to 14 mph becoming west after midnight. Winds could gust as high as 23 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.
Saturday
Mostly cloudy, with a high near 65. West northwest wind around 10 mph, with gusts as high as 20 mph.
Saturday Night
Partly cloudy, with a low around 45. West northwest wind 5 to 7 mph becoming light and variable.
Sunday
Sunny, with a high near 77. South wind 8 to 10 mph.
Sunday Night
Mostly clear, with a low around 52. South southeast wind 7 to 13 mph, with gusts as high as 23 mph.
Memorial Day
Sunny, with a high near 84. South wind 13 to 16 mph, with gusts as high as 25 mph.
Monday Night
Mostly clear, with a low around 56.
Tuesday
Sunny, with a high near 85. Breezy.
Tuesday Night
Partly cloudy, with a low around 57.
Wednesday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 83. Chance of precipitation is 20%.
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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:
11:31 am CDT May 21, 2026
Forecast Valid:
12pm CDT May 21, 2026-6pm CDT May 27, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation