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

70°F

21°C

Humidity 29%
Wind Speed N 9 mph
Barometer 29.88 in (1012.0 mb)
Dewpoint 36°F (2°C)
Visibility 10.00 mi
Last update 16 May 4:53 pm CDT
Extended Forecast for

Webster SD

  • Tonight

    Tonight: A chance of showers, mainly between 3am and 5am. Increasing clouds, with a low around 44. Breezy, with an east northeast wind 10 to 15 mph increasing to 17 to 22 mph after midnight. Winds could gust as high as 36 mph. Chance of precipitation is 40%.

    Low: 44 °F

    Partly Cloudy
    then Chance
    Showers and
    Breezy

  • Sunday

    Sunday: Showers and thunderstorms, mainly before noon, then showers and possibly a thunderstorm after 4pm. High near 63. Breezy, with an east southeast wind 19 to 24 mph decreasing to 13 to 18 mph in the afternoon. Winds could gust as high as 39 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

    High: 63 °F

    Showers and
    Breezy

  • Sunday Night

    Sunday Night: Showers and thunderstorms before midnight, then a chance of showers after 1am. Low around 39. North northwest wind 13 to 16 mph, with gusts as high as 26 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 39 °F

    Showers then
    Chance
    Showers

  • Monday

    Monday: A chance of showers, with thunderstorms also possible after 4pm. Cloudy, with a high near 50. North wind around 18 mph, with gusts as high as 29 mph. Chance of precipitation is 50%.

    High: 50 °F

    Slight Chance
    Showers then
    Chance
    Showers

  • Monday Night

    Monday Night: Showers and possibly a thunderstorm. Low around 35. North wind around 18 mph, with gusts as high as 29 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 35 °F

    Showers

  • Tuesday

    Tuesday: A slight chance of showers before 1pm. Mostly cloudy, with a high near 47. Breezy, with a north northwest wind 16 to 20 mph, with gusts as high as 32 mph. Chance of precipitation is 20%.

    High: 47 °F

    Slight Chance
    Showers and
    Breezy

  • Tuesday Night

    Tuesday Night: Patchy frost after 3am. Otherwise, mostly cloudy, with a low around 33. North northwest wind 9 to 14 mph becoming light after midnight. Winds could gust as high as 24 mph.

    Low: 33 °F

    Mostly Cloudy
    then Patchy
    Frost

  • Wednesday

    Wednesday: Areas of frost before 8am. Otherwise, mostly sunny, with a high near 58. West southwest wind 5 to 7 mph becoming south southeast in the afternoon.

    High: 58 °F

    Areas Frost
    then Mostly
    Sunny

  • Wednesday Night

    Wednesday Night: A slight chance of showers after 1am. Partly cloudy, with a low around 39. East southeast wind 6 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.

    Low: 39 °F

    Partly Cloudy
    then Slight
    Chance
    Showers

Detailed Forecast

Tonight
A chance of showers, mainly between 3am and 5am. Increasing clouds, with a low around 44. Breezy, with an east northeast wind 10 to 15 mph increasing to 17 to 22 mph after midnight. Winds could gust as high as 36 mph. Chance of precipitation is 40%.
Sunday
Showers and thunderstorms, mainly before noon, then showers and possibly a thunderstorm after 4pm. High near 63. Breezy, with an east southeast wind 19 to 24 mph decreasing to 13 to 18 mph in the afternoon. Winds could gust as high as 39 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Sunday Night
Showers and thunderstorms before midnight, then a chance of showers after 1am. Low around 39. North northwest wind 13 to 16 mph, with gusts as high as 26 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Monday
A chance of showers, with thunderstorms also possible after 4pm. Cloudy, with a high near 50. North wind around 18 mph, with gusts as high as 29 mph. Chance of precipitation is 50%.
Monday Night
Showers and possibly a thunderstorm. Low around 35. North wind around 18 mph, with gusts as high as 29 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tuesday
A slight chance of showers before 1pm. Mostly cloudy, with a high near 47. Breezy, with a north northwest wind 16 to 20 mph, with gusts as high as 32 mph. Chance of precipitation is 20%.
Tuesday Night
Patchy frost after 3am. Otherwise, mostly cloudy, with a low around 33. North northwest wind 9 to 14 mph becoming light after midnight. Winds could gust as high as 24 mph.
Wednesday
Areas of frost before 8am. Otherwise, mostly sunny, with a high near 58. West southwest wind 5 to 7 mph becoming south southeast in the afternoon.
Wednesday Night
A slight chance of showers after 1am. Partly cloudy, with a low around 39. East southeast wind 6 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.
Thursday
A slight chance of showers after 1pm. Partly sunny, with a high near 64. Chance of precipitation is 20%.
Thursday Night
A slight chance of showers. Mostly cloudy, with a low around 43. Chance of precipitation is 20%.
Friday
A slight chance of showers. Partly sunny, with a high near 67. Chance of precipitation is 20%.
Friday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 47. Chance of precipitation is 40%.
Saturday
A chance of showers. Mostly cloudy, with a high near 71. Chance of precipitation is 30%.
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ABOUT THIS FORECAST

 
Point Forecast:
Webster SD
 45.33°N 97.52°W (Elev. 1831 ft)
Last Update:
4:36 pm CDT May 16, 2026
Forecast Valid:
5pm CDT May 16, 2026-6pm CDT May 23, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation