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

69°F

21°C

Humidity 30%
Wind Speed NW 10 G 20 mph
Barometer 29.92 in (1012.6 mb)
Dewpoint 36°F (2°C)
Visibility 10.00 mi
Last update 16 May 11:53 am CDT
Extended Forecast for

9 Miles S Ortley SD

  • This Afternoon

    This Afternoon: Sunny, with a high near 74. North wind 9 to 13 mph, with gusts as high as 22 mph.

    High: 74 °F

    Sunny

  • Tonight

    Tonight: A chance of showers, mainly between 3am and 5am. Increasing clouds, with a low around 44. Breezy, with an east northeast wind 13 to 23 mph, with gusts as high as 36 mph. Chance of precipitation is 40%.

    Low: 44 °F

    Breezy.
    Partly Cloudy
    then Chance
    Showers

  • Sunday

    Sunday: Showers and thunderstorms likely, then showers and possibly a thunderstorm after 4pm. Some of the storms could be severe. High near 66. Breezy, with an east wind 20 to 25 mph decreasing to 13 to 18 mph in the afternoon. Winds could gust as high as 38 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.

    High: 66 °F

    Breezy.
    Showers
    Likely then
    Severe
    Thunderstorms

  • Sunday Night

    Sunday Night: Showers and thunderstorms before 1am, then a chance of showers. Some of the storms could be severe. Low around 41. North northwest wind 14 to 18 mph, with gusts as high as 28 mph. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.

    Low: 41 °F

    Severe
    Thunderstorms
    then Chance
    Showers

  • Monday

    Monday: A chance of showers, then showers likely and possibly a thunderstorm after 1pm. Cloudy, with a high near 51. Breezy, with a north wind around 20 mph, with gusts as high as 32 mph. Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 51 °F

    Breezy.
    Chance
    Showers then
    Showers
    Likely

  • Monday Night

    Monday Night: Showers, mainly before 1am. Low around 36. Breezy, with a north wind 20 to 22 mph, with gusts as high as 32 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 36 °F

    Showers and
    Breezy

  • Tuesday

    Tuesday: A slight chance of showers before 1pm. Mostly cloudy, with a high near 47. Breezy, with a northwest wind 18 to 23 mph, with gusts as high as 34 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. Northwest wind 11 to 16 mph decreasing to 5 to 10 mph after midnight. Winds could gust as high as 25 mph.

    Low: 33 °F

    Mostly Cloudy
    then Patchy
    Frost

  • Wednesday

    Wednesday: Areas of frost before 9am. Otherwise, mostly sunny, with a high near 58. West northwest wind 6 to 9 mph becoming north in the afternoon.

    High: 58 °F

    Areas Frost
    then Mostly
    Sunny

Detailed Forecast

This Afternoon
Sunny, with a high near 74. North wind 9 to 13 mph, with gusts as high as 22 mph.
Tonight
A chance of showers, mainly between 3am and 5am. Increasing clouds, with a low around 44. Breezy, with an east northeast wind 13 to 23 mph, with gusts as high as 36 mph. Chance of precipitation is 40%.
Sunday
Showers and thunderstorms likely, then showers and possibly a thunderstorm after 4pm. Some of the storms could be severe. High near 66. Breezy, with an east wind 20 to 25 mph decreasing to 13 to 18 mph in the afternoon. Winds could gust as high as 38 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.
Sunday Night
Showers and thunderstorms before 1am, then a chance of showers. Some of the storms could be severe. Low around 41. North northwest wind 14 to 18 mph, with gusts as high as 28 mph. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.
Monday
A chance of showers, then showers likely and possibly a thunderstorm after 1pm. Cloudy, with a high near 51. Breezy, with a north wind around 20 mph, with gusts as high as 32 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, mainly before 1am. Low around 36. Breezy, with a north wind 20 to 22 mph, with gusts as high as 32 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
Tuesday
A slight chance of showers before 1pm. Mostly cloudy, with a high near 47. Breezy, with a northwest wind 18 to 23 mph, with gusts as high as 34 mph. Chance of precipitation is 20%.
Tuesday Night
Patchy frost after 3am. Otherwise, mostly cloudy, with a low around 33. Northwest wind 11 to 16 mph decreasing to 5 to 10 mph after midnight. Winds could gust as high as 25 mph.
Wednesday
Areas of frost before 9am. Otherwise, mostly sunny, with a high near 58. West northwest wind 6 to 9 mph becoming north in the afternoon.
Wednesday Night
A slight chance of showers after 1am. Partly cloudy, with a low around 38. Chance of precipitation is 20%.
Thursday
A slight chance of showers. 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
Partly sunny, with a high near 69.
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ABOUT THIS FORECAST

 
Point Forecast:
9 Miles S Ortley SD
 45.21°N 97.24°W (Elev. 1900 ft)
Last Update:
12:36 pm CDT May 16, 2026
Forecast Valid:
1pm CDT May 16, 2026-6pm CDT May 22, 2026
 
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