Hourly Weather | Today Monday, September 14, 2026
Sioux Falls, South Dakota
3 PM
Cloudy Weather
70°
Feels Like 66°
49
Humidity: 76%
UV Index: 1
Wind: 16 mph
4 PM
Cloudy Weather
72°
Feels Like 70°
47
Humidity: 74%
UV Index: 1
Wind: 15 mph
5 PM
Cloudy Weather
73°
Feels Like 73°
46
Humidity: 72%
UV Index: 1
Wind: 13 mph
6 PM
Cloudy Weather
73°
Feels Like 73°
49
Humidity: 77%
UV Index: 1
Wind: 9 mph
7 PM
Sunny with a Chance of Thunderstorms
72°
Feels Like 70°
54
Humidity: 84%
UV Index: 0
Wind: 7 mph
8 PM
Cloudy Night
70°
Feels Like 70°
22
Humidity: 87%
UV Index: 0
Wind: 7 mph
9 PM
Cloudy Night
66°
Feels Like 66°
17
Humidity: 94%
UV Index: 0
Wind: 7 mph
10 PM
Cloudy Night
64°
Feels Like 64°
17
Humidity: 97%
UV Index: 0
Wind: 7 mph
11 PM
Cloudy Night
63°
Feels Like 63°
17
Humidity: 100%
UV Index: 0
Wind: 6 mph

Hourly Air Quality Forecast - AQI (US EPA)

3 PM
31 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 3.88 µg/m³
  • PM10: 4.68 µg/m³
  • O3: 0.034 ppm
  • NO2: 0.4 ppb
  • SO2: 0.1 ppb
  • CO: 0.11 ppm

Health Recommendations:

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

4 PM
31 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 3.16 µg/m³
  • PM10: 4.05 µg/m³
  • O3: 0.034 ppm
  • NO2: 0.3 ppb
  • SO2: 0.1 ppb
  • CO: 0.10 ppm

Health Recommendations:

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

5 PM
32 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 2.64 µg/m³
  • PM10: 3.48 µg/m³
  • O3: 0.034 ppm
  • NO2: 0.4 ppb
  • SO2: 0.1 ppb
  • CO: 0.10 ppm

Health Recommendations:

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

6 PM
31 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 2.3 µg/m³
  • PM10: 2.95 µg/m³
  • O3: 0.033 ppm
  • NO2: 0.6 ppb
  • SO2: 0.1 ppb
  • CO: 0.10 ppm

Health Recommendations:

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

7 PM
30 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 2.03 µg/m³
  • PM10: 2.48 µg/m³
  • O3: 0.032 ppm
  • NO2: 0.7 ppb
  • SO2: 0.1 ppb
  • CO: 0.10 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 1.91 µg/m³
  • PM10: 2.27 µg/m³
  • O3: 0.030 ppm
  • NO2: 0.9 ppb
  • SO2: 0.1 ppb
  • CO: 0.10 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 1.95 µg/m³
  • PM10: 2.32 µg/m³
  • O3: 0.029 ppm
  • NO2: 1 ppb
  • SO2: 0.1 ppb
  • CO: 0.11 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 2.05 µg/m³
  • PM10: 2.42 µg/m³
  • O3: 0.028 ppm
  • NO2: 1.1 ppb
  • SO2: 0 ppb
  • CO: 0.11 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 2.15 µg/m³
  • PM10: 2.48 µg/m³
  • O3: 0.027 ppm
  • NO2: 1.1 ppb
  • SO2: 0 ppb
  • CO: 0.11 ppm

Health Recommendations:

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