Hourly Weather | Today Monday, June 29, 2026
Active Weather Warnings
Watertown, South Dakota
10 PM
Cloudy Night
77°
Feels Like 75°
6
Humidity: 68%
UV Index: 0
Wind: 11 mph
11 PM
Cloudy Night
73°
Feels Like 72°
6
Humidity: 70%
UV Index: 0
Wind: 9 mph

Hourly Air Quality Forecast - AQI (US EPA)

10 PM
27 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 2.81 µg/m³
  • PM10: 3.02 µg/m³
  • O3: 0.029 ppm
  • NO2: 0.7 ppb
  • SO2: 0 ppb
  • CO: 0.10 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

11 PM
28 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 3.34 µg/m³
  • PM10: 3.64 µg/m³
  • O3: 0.030 ppm
  • NO2: 0.9 ppb
  • SO2: 0 ppb
  • CO: 0.10 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

Weather Alerts and Warnings for Watertown

Severe Future Possible

Severe Thunderstorm Watch

Severe Thunderstorm Watch issued June 29 at 6:33PM CDT until June 30 at 12:00AM CDT by NWS Aberdeen SD
Jun 29, 6:33 PM Jun 30, 12:00 AM
THE NATIONAL WEATHER SERVICE HAS ISSUED SEVERE THUNDERSTORM WATCH
417 IN EFFECT UNTIL MIDNIGHT CDT TONIGHT FOR THE FOLLOWING AREAS

IN MINNESOTA THIS WATCH INCLUDES 2 COUNTIES

IN WEST CENTRAL MINNESOTA

BIG STONE TRAVERSE

IN SOUTH DAKOTA THIS WATCH INCLUDES 4 COUNTIES

IN NORTHEAST SOUTH DAKOTA

CODINGTON DEUEL GRANT
HAMLIN

THIS INCLUDES THE CITIES OF CLEAR LAKE, HAYTI, MILBANK,
ORTONVILLE, WATERTOWN, AND WHEATON.
Updated: Jun 29, 7:22 PM Source: NWS Alert