Hourly Weather | Today Sunday, December 21, 2025
South Bend, Indiana
1 AM
Cloudy Night
27°
Feels Like 19°
0
Humidity: 58%
Wind: 8 mph
UV Index: 0
2 AM
Cloudy Night
27°
Feels Like 19°
0
Humidity: 57%
Wind: 8 mph
UV Index: 0
3 AM
Cloudy Weather
27°
Feels Like 19°
0
Humidity: 56%
Wind: 8 mph
UV Index: 0
4 AM
Cloudy Weather
28°
Feels Like 19°
0
Humidity: 55%
Wind: 8 mph
UV Index: 0
5 AM
Cloudy Weather
28°
Feels Like 21°
0
Humidity: 54%
Wind: 8 mph
UV Index: 0
6 AM
Cloudy Weather
30°
Feels Like 21°
2
Humidity: 55%
Wind: 8 mph
UV Index: 0
7 AM
Cloudy Weather
30°
Feels Like 23°
6
Humidity: 55%
Wind: 8 mph
UV Index: 0
8 AM
Cloudy Weather
30°
Feels Like 23°
6
Humidity: 57%
Wind: 9 mph
UV Index: 0
9 AM
Cloudy Weather
32°
Feels Like 25°
6
Humidity: 54%
Wind: 9 mph
UV Index: 0
10 AM
Cloudy Weather
34°
Feels Like 27°
6
Humidity: 52%
Wind: 9 mph
UV Index: 1
11 AM
Cloudy Weather
36°
Feels Like 27°
6
Humidity: 49%
Wind: 10 mph
UV Index: 1
12 PM
Cloudy Weather
37°
Feels Like 28°
6
Humidity: 46%
Wind: 13 mph
UV Index: 1
1 PM
Cloudy Weather
39°
Feels Like 30°
6
Humidity: 43%
Wind: 13 mph
UV Index: 1
2 PM
Cloudy Weather
41°
Feels Like 32°
6
Humidity: 42%
Wind: 13 mph
UV Index: 1
3 PM
Cloudy Weather
41°
Feels Like 32°
6
Humidity: 43%
Wind: 13 mph
UV Index: 0
4 PM
Cloudy Weather
41°
Feels Like 32°
6
Humidity: 45%
Wind: 13 mph
UV Index: 0
5 PM
Cloudy Weather
41°
Feels Like 32°
6
Humidity: 48%
Wind: 13 mph
UV Index: 0
6 PM
Cloudy Weather
39°
Feels Like 30°
6
Humidity: 52%
Wind: 12 mph
UV Index: 0
7 PM
Cloudy Weather
39°
Feels Like 28°
6
Humidity: 58%
Wind: 12 mph
UV Index: 0
8 PM
Cloudy Weather
37°
Feels Like 28°
6
Humidity: 65%
Wind: 12 mph
UV Index: 0
9 PM
Cloudy Weather
37°
Feels Like 28°
6
Humidity: 72%
Wind: 12 mph
UV Index: 0
10 PM
Cloudy Weather
36°
Feels Like 27°
6
Humidity: 81%
Wind: 12 mph
UV Index: 0
11 PM
Cloudy Weather
37°
Feels Like 28°
6
Humidity: 84%
Wind: 10 mph
UV Index: 0

Hourly Air Quality Forecast - AQI (US EPA)

1 AM
29 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 3.57 µg/m³
  • PM10: 3.95 µg/m³
  • O3: 0.031 ppm
  • NO2: 3 ppb
  • SO2: 0.5 ppb
  • CO: 0.15 ppm

Health Recommendations:

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

2 AM
30 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 3.17 µg/m³
  • PM10: 3.54 µg/m³
  • O3: 0.032 ppm
  • NO2: 2.7 ppb
  • SO2: 0.5 ppb
  • CO: 0.15 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 2.95 µg/m³
  • PM10: 3.32 µg/m³
  • O3: 0.033 ppm
  • NO2: 2.6 ppb
  • SO2: 0.6 ppb
  • CO: 0.15 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 2.89 µg/m³
  • PM10: 3.28 µg/m³
  • O3: 0.034 ppm
  • NO2: 2.6 ppb
  • SO2: 0.6 ppb
  • CO: 0.15 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 2.87 µg/m³
  • PM10: 3.3 µg/m³
  • O3: 0.033 ppm
  • NO2: 2.7 ppb
  • SO2: 0.7 ppb
  • CO: 0.15 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 2.9 µg/m³
  • PM10: 3.39 µg/m³
  • O3: 0.034 ppm
  • NO2: 2.9 ppb
  • SO2: 0.8 ppb
  • CO: 0.15 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 2.95 µg/m³
  • PM10: 3.53 µg/m³
  • O3: 0.034 ppm
  • NO2: 3.2 ppb
  • SO2: 0.9 ppb
  • CO: 0.15 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 2.95 µg/m³
  • PM10: 3.62 µg/m³
  • O3: 0.033 ppm
  • NO2: 3.6 ppb
  • SO2: 1 ppb
  • CO: 0.15 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 2.9 µg/m³
  • PM10: 3.66 µg/m³
  • O3: 0.033 ppm
  • NO2: 4.1 ppb
  • SO2: 1.1 ppb
  • CO: 0.15 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 2.73 µg/m³
  • PM10: 3.58 µg/m³
  • O3: 0.035 ppm
  • NO2: 4.4 ppb
  • SO2: 1.2 ppb
  • CO: 0.15 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 2.37 µg/m³
  • PM10: 3.25 µg/m³
  • O3: 0.037 ppm
  • NO2: 3.8 ppb
  • SO2: 1.3 ppb
  • CO: 0.14 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 2.3 µg/m³
  • PM10: 3.22 µg/m³
  • O3: 0.038 ppm
  • NO2: 3.5 ppb
  • SO2: 1.4 ppb
  • CO: 0.14 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 2.43 µg/m³
  • PM10: 3.4 µg/m³
  • O3: 0.039 ppm
  • NO2: 3.5 ppb
  • SO2: 1.5 ppb
  • CO: 0.14 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 2.58 µg/m³
  • PM10: 3.57 µg/m³
  • O3: 0.039 ppm
  • NO2: 3.5 ppb
  • SO2: 1.4 ppb
  • CO: 0.14 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 2.74 µg/m³
  • PM10: 3.74 µg/m³
  • O3: 0.039 ppm
  • NO2: 3.7 ppb
  • SO2: 1.3 ppb
  • CO: 0.14 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 2.82 µg/m³
  • PM10: 3.82 µg/m³
  • O3: 0.038 ppm
  • NO2: 4.1 ppb
  • SO2: 1.3 ppb
  • CO: 0.14 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 3.25 µg/m³
  • PM10: 4.32 µg/m³
  • O3: 0.036 ppm
  • NO2: 5.9 ppb
  • SO2: 1.2 ppb
  • CO: 0.15 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 3.93 µg/m³
  • PM10: 5.1 µg/m³
  • O3: 0.032 ppm
  • NO2: 8.4 ppb
  • SO2: 1.2 ppb
  • CO: 0.18 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 4.58 µg/m³
  • PM10: 5.84 µg/m³
  • O3: 0.030 ppm
  • NO2: 10.1 ppb
  • SO2: 1.1 ppb
  • CO: 0.20 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 5.23 µg/m³
  • PM10: 6.57 µg/m³
  • O3: 0.027 ppm
  • NO2: 11.2 ppb
  • SO2: 1.1 ppb
  • CO: 0.21 ppm

Health Recommendations:

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

9 PM
24 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 5.84 µg/m³
  • PM10: 7.25 µg/m³
  • O3: 0.026 ppm
  • NO2: 11.4 ppb
  • SO2: 1 ppb
  • CO: 0.22 ppm

Health Recommendations:

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

10 PM
27 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 6.44 µg/m³
  • PM10: 7.89 µg/m³
  • O3: 0.024 ppm
  • NO2: 11.3 ppb
  • SO2: 0.9 ppb
  • CO: 0.23 ppm

Health Recommendations:

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

11 PM
29 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 6.98 µg/m³
  • PM10: 8.37 µg/m³
  • O3: 0.022 ppm
  • NO2: 11.2 ppb
  • SO2: 0.7 ppb
  • CO: 0.23 ppm

Health Recommendations:

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