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

57°F

14°C

Humidity 83%
Wind Speed W 7 mph
Barometer 30.05 in (1017.0 mb)
Dewpoint 52°F (11°C)
Visibility 10.00 mi
Last update 24 Jun 2:53 am CDT
Extended Forecast for

Watertown SD

  • Overnight

    Overnight: Partly cloudy, with a low around 55. West northwest wind around 6 mph.

    Low: 55 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Increasing clouds, with a high near 72. West northwest wind 9 to 16 mph, with gusts as high as 26 mph.

    High: 72 °F

    Increasing
    Clouds

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 51. Northwest wind 5 to 14 mph, with gusts as high as 22 mph.

    Low: 51 °F

    Mostly Clear

  • Thursday

    Thursday: Increasing clouds, with a high near 74. North northwest wind 5 to 7 mph becoming east northeast in the afternoon.

    High: 74 °F

    Increasing
    Clouds

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 55. East wind 5 to 7 mph.

    Low: 55 °F

    Mostly Cloudy

  • Friday

    Friday: A slight chance of showers. Mostly cloudy, with a high near 76. Southeast wind 8 to 13 mph, with gusts as high as 22 mph. Chance of precipitation is 20%.

    High: 76 °F

    Slight Chance
    Showers

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 61. Southeast wind 13 to 16 mph, with gusts as high as 25 mph.

    Low: 61 °F

    Mostly Cloudy

  • Saturday

    Saturday: A slight chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 83. Breezy, with a south southeast wind 17 to 23 mph, with gusts as high as 34 mph. Chance of precipitation is 20%.

    High: 83 °F

    Breezy.
    Partly Sunny
    then Slight
    Chance
    T-storms

  • Saturday Night

    Saturday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 69. Breezy, with a southeast wind 20 to 22 mph, with gusts as high as 32 mph. Chance of precipitation is 40%.

    Low: 69 °F

    Chance
    Showers and
    Breezy

Detailed Forecast

Overnight
Partly cloudy, with a low around 55. West northwest wind around 6 mph.
Wednesday
Increasing clouds, with a high near 72. West northwest wind 9 to 16 mph, with gusts as high as 26 mph.
Wednesday Night
Mostly clear, with a low around 51. Northwest wind 5 to 14 mph, with gusts as high as 22 mph.
Thursday
Increasing clouds, with a high near 74. North northwest wind 5 to 7 mph becoming east northeast in the afternoon.
Thursday Night
Mostly cloudy, with a low around 55. East wind 5 to 7 mph.
Friday
A slight chance of showers. Mostly cloudy, with a high near 76. Southeast wind 8 to 13 mph, with gusts as high as 22 mph. Chance of precipitation is 20%.
Friday Night
Mostly cloudy, with a low around 61. Southeast wind 13 to 16 mph, with gusts as high as 25 mph.
Saturday
A slight chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 83. Breezy, with a south southeast wind 17 to 23 mph, with gusts as high as 34 mph. Chance of precipitation is 20%.
Saturday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 69. Breezy, with a southeast wind 20 to 22 mph, with gusts as high as 32 mph. Chance of precipitation is 40%.
Sunday
A chance of showers and thunderstorms before 1pm. Mostly sunny and hot, with a high near 93. Breezy. Chance of precipitation is 30%.
Sunday Night
A chance of showers and thunderstorms. Mostly clear, with a low around 69. Chance of precipitation is 40%.
Monday
A slight chance of showers and thunderstorms. Sunny and hot, with a high near 90. Chance of precipitation is 20%.
Monday Night
A slight chance of showers and thunderstorms. Mostly clear, with a low around 65. Chance of precipitation is 20%.
Tuesday
A slight chance of showers and thunderstorms. Mostly sunny and hot, with a high near 91. Chance of precipitation is 20%.
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ABOUT THIS FORECAST

 
Point Forecast:
Watertown SD
 44.91°N 97.17°W (Elev. 1755 ft)
Last Update:
2:36 am CDT Jun 24, 2026
Forecast Valid:
3am CDT Jun 24, 2026-6pm CDT Jun 30, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation