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

45°F

7°C

Humidity 77%
Wind Speed Calm
Barometer 29.87 in (1011.1 mb)
Dewpoint 38°F (3°C)
Visibility 10.00 mi
Last update 16 May 6:53 am CDT
Extended Forecast for

5 Miles S Garden City SD

  • Today

    Today: Sunny, with a high near 77. Light north wind increasing to 5 to 10 mph in the morning.

    High: 77 °F

    Sunny

  • Tonight

    Tonight: A chance of showers, mainly after 3am. Increasing clouds, with a low around 49. Breezy, with an east northeast wind 15 to 20 mph increasing to 21 to 26 mph after midnight. Winds could gust as high as 37 mph. Chance of precipitation is 40%.

    Low: 49 °F

    Breezy.
    Partly Cloudy
    then Chance
    Showers

  • Sunday

    Sunday: Showers and thunderstorms, mainly before 10am, then showers and possibly a thunderstorm after 1pm. Some of the storms could be severe. High near 70. Breezy, with an east southeast wind 16 to 25 mph, with gusts as high as 37 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.

    High: 70 °F

    Breezy.
    Showers then
    Severe
    Thunderstorms

  • Sunday Night

    Sunday Night: A chance of showers and thunderstorms. Some of the storms could be severe. Cloudy, with a low around 41. Breezy, with a north northwest wind 17 to 20 mph, with gusts as high as 28 mph. Chance of precipitation is 50%.

    Low: 41 °F

    Severe
    Thunderstorms
    and Breezy
    then Chance
    Showers

  • Monday

    Monday: A slight chance of showers, then showers likely and possibly a thunderstorm after 1pm. Cloudy, with a high near 53. Breezy, with a north northeast wind 20 to 22 mph, with gusts as high as 31 mph. Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 53 °F

    Breezy.
    Slight Chance
    Showers then
    Showers
    Likely

  • Monday Night

    Monday Night: Showers and possibly a thunderstorm. Low around 36. Breezy, with a north wind around 22 mph, with gusts as high as 31 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 36 °F

    Showers and
    Breezy

  • Tuesday

    Tuesday: A slight chance of showers before 1pm. Mostly cloudy, with a high near 49. Breezy, with a northwest wind 21 to 25 mph, with gusts as high as 34 mph. Chance of precipitation is 20%.

    High: 49 °F

    Slight Chance
    Showers and
    Breezy

  • Tuesday Night

    Tuesday Night: Areas of frost after 3am. Otherwise, mostly cloudy, with a low around 32. Northwest wind 13 to 18 mph decreasing to 5 to 10 mph after midnight.

    Low: 32 °F

    Mostly Cloudy
    then Areas
    Frost

  • Wednesday

    Wednesday: Areas of frost before 8am. Otherwise, mostly sunny, with a high near 60. Northwest wind 7 to 10 mph.

    High: 60 °F

    Areas Frost
    then Sunny

Detailed Forecast

Today
Sunny, with a high near 77. Light north wind increasing to 5 to 10 mph in the morning.
Tonight
A chance of showers, mainly after 3am. Increasing clouds, with a low around 49. Breezy, with an east northeast wind 15 to 20 mph increasing to 21 to 26 mph after midnight. Winds could gust as high as 37 mph. Chance of precipitation is 40%.
Sunday
Showers and thunderstorms, mainly before 10am, then showers and possibly a thunderstorm after 1pm. Some of the storms could be severe. High near 70. Breezy, with an east southeast wind 16 to 25 mph, with gusts as high as 37 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.
Sunday Night
A chance of showers and thunderstorms. Some of the storms could be severe. Cloudy, with a low around 41. Breezy, with a north northwest wind 17 to 20 mph, with gusts as high as 28 mph. Chance of precipitation is 50%.
Monday
A slight chance of showers, then showers likely and possibly a thunderstorm after 1pm. Cloudy, with a high near 53. Breezy, with a north northeast wind 20 to 22 mph, with gusts as high as 31 mph. Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Monday Night
Showers and possibly a thunderstorm. Low around 36. Breezy, with a north wind around 22 mph, with gusts as high as 31 mph. Chance of precipitation is 80%. 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 49. Breezy, with a northwest wind 21 to 25 mph, with gusts as high as 34 mph. Chance of precipitation is 20%.
Tuesday Night
Areas of frost after 3am. Otherwise, mostly cloudy, with a low around 32. Northwest wind 13 to 18 mph decreasing to 5 to 10 mph after midnight.
Wednesday
Areas of frost before 8am. Otherwise, mostly sunny, with a high near 60. Northwest wind 7 to 10 mph.
Wednesday Night
A slight chance of showers after 1am. Partly cloudy, with a low around 39. Chance of precipitation is 20%.
Thursday
A slight chance of showers. Partly sunny, with a high near 66. Chance of precipitation is 20%.
Thursday Night
A slight chance of showers. Mostly cloudy, with a low around 44. Chance of precipitation is 20%.
Friday
A slight chance of showers and thunderstorms. Partly sunny, with a high near 71. Chance of precipitation is 20%.
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles S Garden City SD
 44.88°N 97.57°W (Elev. 1804 ft)
Last Update:
7:36 am CDT May 16, 2026
Forecast Valid:
7am CDT May 16, 2026-6pm CDT May 22, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

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Chance of Precipitation