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.

Light Rain

39°F

4°C

Humidity 82%
Wind Speed N 7 mph
Barometer 30.05 in (1018.7 mb)
Dewpoint 34°F (1°C)
Visibility 10.00 mi
Wind Chill34°F (1°C)
Last update 25 Apr 12:53 pm CDT
Extended Forecast for

Watertown SD

  • This Afternoon

    This Afternoon: Showers likely, mainly before 2pm. Cloudy, with a high near 47. North northeast wind around 10 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    High: 47 °F

    Showers
    Likely

  • Tonight

    Tonight: Showers likely, mainly before 9pm. Cloudy, with a low around 36. East northeast wind 6 to 8 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 36 °F

    Showers
    Likely

  • Sunday

    Sunday: Showers, mainly after 3pm. High near 55. East wind 9 to 18 mph, with gusts as high as 28 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 55 °F

    Slight Chance
    Showers then
    Showers

  • Sunday Night

    Sunday Night: Showers before 10pm, then showers and possibly a thunderstorm between 10pm and 1am, then showers after 1am. Low around 43. East northeast wind 14 to 17 mph, with gusts as high as 28 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.

    Low: 43 °F

    Showers

  • Monday

    Monday: Showers. High near 51. Breezy, with a north northwest wind 14 to 24 mph, with gusts as high as 37 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

    High: 51 °F

    Showers and
    Breezy

  • Monday Night

    Monday Night: A chance of showers before 1am. Mostly cloudy, with a low around 31. Blustery, with a northwest wind 15 to 24 mph, with gusts as high as 38 mph. Chance of precipitation is 30%.

    Low: 31 °F

    Chance
    Showers and
    Blustery

  • Tuesday

    Tuesday: Partly sunny, with a high near 52. Northwest wind around 14 mph, with gusts as high as 22 mph.

    High: 52 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 32. Northwest wind 6 to 11 mph becoming light west after midnight.

    Low: 32 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: A chance of showers, mainly after 1pm. Mostly sunny, with a high near 56. West wind 5 to 11 mph, with gusts as high as 20 mph. Chance of precipitation is 30%.

    High: 56 °F

    Chance
    Showers

Detailed Forecast

This Afternoon
Showers likely, mainly before 2pm. Cloudy, with a high near 47. North northeast wind around 10 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Tonight
Showers likely, mainly before 9pm. Cloudy, with a low around 36. East northeast wind 6 to 8 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Sunday
Showers, mainly after 3pm. High near 55. East wind 9 to 18 mph, with gusts as high as 28 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Sunday Night
Showers before 10pm, then showers and possibly a thunderstorm between 10pm and 1am, then showers after 1am. Low around 43. East northeast wind 14 to 17 mph, with gusts as high as 28 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.
Monday
Showers. High near 51. Breezy, with a north northwest wind 14 to 24 mph, with gusts as high as 37 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Monday Night
A chance of showers before 1am. Mostly cloudy, with a low around 31. Blustery, with a northwest wind 15 to 24 mph, with gusts as high as 38 mph. Chance of precipitation is 30%.
Tuesday
Partly sunny, with a high near 52. Northwest wind around 14 mph, with gusts as high as 22 mph.
Tuesday Night
Mostly cloudy, with a low around 32. Northwest wind 6 to 11 mph becoming light west after midnight.
Wednesday
A chance of showers, mainly after 1pm. Mostly sunny, with a high near 56. West wind 5 to 11 mph, with gusts as high as 20 mph. Chance of precipitation is 30%.
Wednesday Night
Partly cloudy, with a low around 31.
Thursday
A slight chance of showers. Mostly sunny, with a high near 53. Chance of precipitation is 20%.
Thursday Night
Partly cloudy, with a low around 31.
Friday
Sunny, with a high near 60.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Watertown SD
 44.91°N 97.14°W (Elev. 1736 ft)
Last Update:
12:56 pm CDT Apr 25, 2026
Forecast Valid:
1pm CDT Apr 25, 2026-6pm CDT May 1, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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