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 93%
Wind Speed Calm
Barometer 29.84 in (1010.7 mb)
Dewpoint 43°F (6°C)
Visibility 10.00 mi
Last update 20 Mar 11:53 pm CDT
Extended Forecast for

6 Miles WSW Watertown SD

  • Overnight

    Overnight: Mostly clear, with a steady temperature around 49. South southwest wind 6 to 10 mph.

    Low: 49 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 77. West northwest wind around 11 mph, with gusts as high as 20 mph.

    High: 77 °F

    Sunny

  • Saturday Night

    Saturday Night: A slight chance of rain after 1am. Mostly cloudy, with a low around 31. Blustery, with a north wind 10 to 20 mph, with gusts as high as 31 mph. Chance of precipitation is 20%.

    Low: 31 °F

    Blustery.
    Partly Cloudy
    then Slight
    Chance Rain

  • Sunday

    Sunday: Cloudy through mid morning, then gradual clearing, with a high near 43. North wind 11 to 16 mph, with gusts as high as 26 mph.

    High: 43 °F

    Gradual
    Clearing

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 25. North northwest wind 5 to 9 mph becoming east southeast after midnight.

    Low: 25 °F

    Mostly Clear

  • Monday

    Monday: A slight chance of rain after 1pm. Partly sunny, with a high near 51. South wind 6 to 11 mph increasing to 12 to 17 mph in the afternoon. Winds could gust as high as 26 mph. Chance of precipitation is 20%.

    High: 51 °F

    Mostly Sunny
    then Slight
    Chance Rain

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 35. South wind around 14 mph, with gusts as high as 23 mph.

    Low: 35 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 56. East wind 10 to 14 mph, with gusts as high as 22 mph.

    High: 56 °F

    Mostly Cloudy

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 34. East wind 10 to 13 mph.

    Low: 34 °F

    Mostly Cloudy

Detailed Forecast

Overnight
Mostly clear, with a steady temperature around 49. South southwest wind 6 to 10 mph.
Saturday
Sunny, with a high near 77. West northwest wind around 11 mph, with gusts as high as 20 mph.
Saturday Night
A slight chance of rain after 1am. Mostly cloudy, with a low around 31. Blustery, with a north wind 10 to 20 mph, with gusts as high as 31 mph. Chance of precipitation is 20%.
Sunday
Cloudy through mid morning, then gradual clearing, with a high near 43. North wind 11 to 16 mph, with gusts as high as 26 mph.
Sunday Night
Mostly clear, with a low around 25. North northwest wind 5 to 9 mph becoming east southeast after midnight.
Monday
A slight chance of rain after 1pm. Partly sunny, with a high near 51. South wind 6 to 11 mph increasing to 12 to 17 mph in the afternoon. Winds could gust as high as 26 mph. Chance of precipitation is 20%.
Monday Night
Mostly cloudy, with a low around 35. South wind around 14 mph, with gusts as high as 23 mph.
Tuesday
Mostly cloudy, with a high near 56. East wind 10 to 14 mph, with gusts as high as 22 mph.
Tuesday Night
Mostly cloudy, with a low around 34. East wind 10 to 13 mph.
Wednesday
Partly sunny, with a high near 62.
Wednesday Night
A slight chance of rain. Mostly cloudy, with a low around 33. Chance of precipitation is 20%.
Thursday
Partly sunny, with a high near 45. Breezy.
Thursday Night
Mostly cloudy, with a low around 20.
Friday
Partly sunny, with a high near 43.
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ABOUT THIS FORECAST

 
Point Forecast:
6 Miles WSW Watertown SD
 44.88°N 97.26°W (Elev. 1749 ft)
Last Update:
11:36 pm CDT Mar 20, 2026
Forecast Valid:
12am CDT Mar 21, 2026-6pm CDT Mar 27, 2026
 
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Additional Resources

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High Temperature

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Chance of Precipitation