Hourly Weather | Today Tuesday, March 17, 2026
Sioux Falls, South Dakota
5 AM
Cloudy Night
Feels Like
0
Frost Risk: 100%
Humidity: 83%
UV Index: 0
Wind: 5 mph
6 AM
Cloudy Night
Feels Like -2°
0
Frost Risk: 100%
Humidity: 83%
UV Index: 0
Wind: 6 mph
7 AM
Cloudy Weather
Feels Like -2°
2
Frost Risk: 100%
Humidity: 79%
UV Index: 0
Wind: 7 mph
8 AM
Cloudy Weather
Feels Like -2°
22
Frost Risk: 100%
Humidity: 77%
UV Index: 0
Wind: 7 mph
9 AM
Cloudy Weather
Feels Like -4°
22
Frost Risk: 100%
Humidity: 73%
UV Index: 1
Wind: 9 mph
10 AM
Cloudy Weather
10°
Feels Like -6°
27
Humidity: 71%
UV Index: 1
Wind: 13 mph
11 AM
Cloudy Weather
12°
Feels Like -6°
47
Humidity: 71%
UV Index: 1
Wind: 16 mph
12 PM
Icy Road Conditions
14°
Feels Like -8°
51
Humidity: 74%
UV Index: 1
Wind: 17 mph
1 PM
Cloudy Weather
16°
Feels Like -4°
43
Humidity: 74%
UV Index: 1
Wind: 20 mph
2 PM
Icy Road Conditions
18°
Feels Like -6°
56
Humidity: 76%
UV Index: 1
Wind: 20 mph
3 PM
Snowy Weather
19°
Feels Like -2°
51
Humidity: 77%
UV Index: 1
Wind: 21 mph
4 PM
Cloudy Weather
21°
Feels Like
49
Humidity: 76%
UV Index: 1
Wind: 20 mph
5 PM
Cloudy Weather
25°
Feels Like
34
Humidity: 73%
UV Index: 1
Wind: 17 mph
6 PM
Cloudy Weather
27°
Feels Like 10°
34
Humidity: 71%
UV Index: 0
Wind: 15 mph
7 PM
Cloudy Weather
28°
Feels Like 16°
22
Humidity: 67%
UV Index: 0
Wind: 13 mph
8 PM
Cloudy Weather
27°
Feels Like 18°
0
Humidity: 70%
UV Index: 0
Wind: 10 mph
9 PM
Cloudy Weather
27°
Feels Like 21°
0
Humidity: 69%
UV Index: 0
Wind: 7 mph
10 PM
Cloudy Weather
27°
Feels Like 25°
0
Humidity: 71%
UV Index: 0
Wind: 6 mph
11 PM
Cloudy Weather
27°
Feels Like 27°
0
Humidity: 73%
UV Index: 0
Wind: 5 mph

Hourly Air Quality Forecast - AQI (US EPA)

5 AM
43 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 2.63 µg/m³
  • PM10: 2.99 µg/m³
  • O3: 0.046 ppm
  • NO2: 1 ppb
  • SO2: 0.1 ppb
  • CO: 0.14 ppm

Health Recommendations:

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

6 AM
43 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 2.49 µg/m³
  • PM10: 2.88 µg/m³
  • O3: 0.046 ppm
  • NO2: 1 ppb
  • SO2: 0.1 ppb
  • CO: 0.14 ppm

Health Recommendations:

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

7 AM
43 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 2.34 µg/m³
  • PM10: 2.76 µg/m³
  • O3: 0.046 ppm
  • NO2: 1 ppb
  • SO2: 0.1 ppb
  • CO: 0.14 ppm

Health Recommendations:

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

8 AM
44 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 2.09 µg/m³
  • PM10: 2.53 µg/m³
  • O3: 0.047 ppm
  • NO2: 1 ppb
  • SO2: 0.2 ppb
  • CO: 0.14 ppm

Health Recommendations:

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

9 AM
43 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 1.97 µg/m³
  • PM10: 2.45 µg/m³
  • O3: 0.047 ppm
  • NO2: 1.2 ppb
  • SO2: 0.4 ppb
  • CO: 0.14 ppm

Health Recommendations:

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

10 AM
43 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 1.92 µg/m³
  • PM10: 2.43 µg/m³
  • O3: 0.046 ppm
  • NO2: 1.5 ppb
  • SO2: 0.7 ppb
  • CO: 0.14 ppm

Health Recommendations:

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

11 AM
44 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 1.8 µg/m³
  • PM10: 2.26 µg/m³
  • O3: 0.047 ppm
  • NO2: 1.5 ppb
  • SO2: 0.9 ppb
  • CO: 0.14 ppm

Health Recommendations:

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

12 PM
44 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 1.73 µg/m³
  • PM10: 2.14 µg/m³
  • O3: 0.048 ppm
  • NO2: 1.6 ppb
  • SO2: 1 ppb
  • CO: 0.14 ppm

Health Recommendations:

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

1 PM
44 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 1.85 µg/m³
  • PM10: 2.24 µg/m³
  • O3: 0.048 ppm
  • NO2: 1.7 ppb
  • SO2: 1.1 ppb
  • CO: 0.13 ppm

Health Recommendations:

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

2 PM
45 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 2.09 µg/m³
  • PM10: 2.46 µg/m³
  • O3: 0.049 ppm
  • NO2: 1.8 ppb
  • SO2: 1 ppb
  • CO: 0.14 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 2.23 µg/m³
  • PM10: 2.58 µg/m³
  • O3: 0.048 ppm
  • NO2: 1.8 ppb
  • SO2: 0.9 ppb
  • CO: 0.14 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 2.27 µg/m³
  • PM10: 2.57 µg/m³
  • O3: 0.047 ppm
  • NO2: 1.8 ppb
  • SO2: 0.7 ppb
  • CO: 0.13 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 2.4 µg/m³
  • PM10: 2.71 µg/m³
  • O3: 0.048 ppm
  • NO2: 1.6 ppb
  • SO2: 0.6 ppb
  • CO: 0.14 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 2.54 µg/m³
  • PM10: 2.9 µg/m³
  • O3: 0.046 ppm
  • NO2: 1.8 ppb
  • SO2: 0.6 ppb
  • CO: 0.14 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 2.67 µg/m³
  • PM10: 3.1 µg/m³
  • O3: 0.045 ppm
  • NO2: 2 ppb
  • SO2: 0.6 ppb
  • CO: 0.14 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 2.82 µg/m³
  • PM10: 3.32 µg/m³
  • O3: 0.043 ppm
  • NO2: 2.2 ppb
  • SO2: 0.5 ppb
  • CO: 0.14 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 2.94 µg/m³
  • PM10: 3.47 µg/m³
  • O3: 0.041 ppm
  • NO2: 2.2 ppb
  • SO2: 0.4 ppb
  • CO: 0.14 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 3.03 µg/m³
  • PM10: 3.56 µg/m³
  • O3: 0.039 ppm
  • NO2: 2.1 ppb
  • SO2: 0.2 ppb
  • CO: 0.14 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 3.03 µg/m³
  • PM10: 3.58 µg/m³
  • O3: 0.038 ppm
  • NO2: 2 ppb
  • SO2: 0.1 ppb
  • CO: 0.14 ppm

Health Recommendations:

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