Hourly Weather | Today Tuesday, July 21, 2026
South Bend, Indiana
4 AM
Cloudy Weather
72°
Feels Like 73°
47
Humidity: 92%
UV Index: 0
Wind: 10 mph
5 AM
Cloudy Weather
72°
Feels Like 73°
34
Humidity: 94%
UV Index: 0
Wind: 10 mph
6 AM
Cloudy Weather
72°
Feels Like 73°
34
Humidity: 95%
UV Index: 0
Wind: 9 mph
7 AM
Cloudy Weather
72°
Feels Like 73°
29
Humidity: 97%
UV Index: 1
Wind: 8 mph
8 AM
Cloudy Weather
70°
Feels Like 73°
20
Humidity: 98%
UV Index: 1
Wind: 8 mph
9 AM
Cloudy Weather
73°
Feels Like 79°
20
Humidity: 91%
UV Index: 3
Wind: 9 mph
10 AM
Cloudy Weather
75°
Feels Like 81°
20
Humidity: 83%
UV Index: 4
Wind: 12 mph
11 AM
Cloudy Weather
79°
Feels Like 84°
20
Humidity: 75%
UV Index: 5
Wind: 13 mph
12 PM
Cloudy Weather
81°
Feels Like 84°
20
Humidity: 69%
UV Index: 6
Wind: 14 mph
1 PM
Cloudy Weather
81°
Feels Like 84°
20
Humidity: 64%
UV Index: 5
Wind: 15 mph
2 PM
Cloudy Weather
82°
Feels Like 84°
19
Humidity: 60%
UV Index: 5
Wind: 15 mph
3 PM
Cloudy Weather
82°
Feels Like 84°
19
Humidity: 57%
UV Index: 4
Wind: 15 mph
4 PM
Cloudy Weather
81°
Feels Like 81°
24
Humidity: 60%
UV Index: 2
Wind: 15 mph
5 PM
Cloudy Weather
81°
Feels Like 81°
47
Humidity: 63%
UV Index: 2
Wind: 14 mph
6 PM
Sunny with a Chance of Thunderstorms
79°
Feels Like 75°
51
Humidity: 65%
UV Index: 1
Wind: 13 mph
7 PM
Cloudy Weather
79°
Feels Like 77°
47
Humidity: 65%
UV Index: 1
Wind: 12 mph
8 PM
Cloudy Weather
75°
Feels Like 73°
49
Humidity: 69%
UV Index: 0
Wind: 10 mph
9 PM
Sunny with a Chance of Thunderstorms
73°
Feels Like 70°
54
Humidity: 74%
UV Index: 0
Wind: 9 mph
10 PM
Stormy Weather
72°
Feels Like 68°
47
Humidity: 81%
UV Index: 0
Wind: 8 mph
11 PM
Cloudy Night
68°
Feels Like 66°
40
Humidity: 87%
UV Index: 0
Wind: 7 mph

Hourly Air Quality Forecast - AQI (US EPA)

4 AM
59 AQI
Moderate air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 16.32 µg/m³
  • PM10: 16.48 µg/m³
  • O3: 0.038 ppm
  • NO2: 1.2 ppb
  • SO2: 0.7 ppb
  • CO: 0.27 ppm

Health Recommendations:

Air quality is acceptable; some pollutants may pose a risk for a small number of unusually sensitive people.

5 AM
59 AQI
Moderate air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 16.08 µg/m³
  • PM10: 16.18 µg/m³
  • O3: 0.036 ppm
  • NO2: 1.1 ppb
  • SO2: 0.7 ppb
  • CO: 0.24 ppm

Health Recommendations:

Air quality is acceptable; some pollutants may pose a risk for a small number of unusually sensitive people.

6 AM
58 AQI
Moderate air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 15.62 µg/m³
  • PM10: 15.71 µg/m³
  • O3: 0.034 ppm
  • NO2: 1.1 ppb
  • SO2: 0.6 ppb
  • CO: 0.21 ppm

Health Recommendations:

Air quality is acceptable; some pollutants may pose a risk for a small number of unusually sensitive people.

7 AM
56 AQI
Moderate air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 14.79 µg/m³
  • PM10: 14.87 µg/m³
  • O3: 0.031 ppm
  • NO2: 1.2 ppb
  • SO2: 0.6 ppb
  • CO: 0.18 ppm

Health Recommendations:

Air quality is acceptable; some pollutants may pose a risk for a small number of unusually sensitive people.

8 AM
54 AQI
Moderate air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 13.7 µg/m³
  • PM10: 13.77 µg/m³
  • O3: 0.028 ppm
  • NO2: 1.4 ppb
  • SO2: 0.5 ppb
  • CO: 0.16 ppm

Health Recommendations:

Air quality is acceptable; some pollutants may pose a risk for a small number of unusually sensitive people.

9 AM
50 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 12.14 µg/m³
  • PM10: 12.2 µg/m³
  • O3: 0.025 ppm
  • NO2: 1.7 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
42 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 10.17 µg/m³
  • PM10: 10.24 µg/m³
  • O3: 0.023 ppm
  • NO2: 1.6 ppb
  • SO2: 0.3 ppb
  • CO: 0.13 ppm

Health Recommendations:

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

11 AM
36 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 8.52 µg/m³
  • PM10: 8.58 µg/m³
  • O3: 0.024 ppm
  • NO2: 1.4 ppb
  • SO2: 0.3 ppb
  • CO: 0.12 ppm

Health Recommendations:

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

12 PM
31 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 7.38 µg/m³
  • PM10: 7.45 µg/m³
  • O3: 0.033 ppm
  • NO2: 0.9 ppb
  • SO2: 0.3 ppb
  • CO: 0.11 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 7.26 µg/m³
  • PM10: 7.34 µg/m³
  • O3: 0.038 ppm
  • NO2: 0.6 ppb
  • SO2: 0.3 ppb
  • CO: 0.11 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 7.34 µg/m³
  • PM10: 7.42 µg/m³
  • O3: 0.041 ppm
  • NO2: 0.5 ppb
  • SO2: 0.4 ppb
  • CO: 0.11 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 6.79 µg/m³
  • PM10: 6.87 µg/m³
  • O3: 0.044 ppm
  • NO2: 0.4 ppb
  • SO2: 0.4 ppb
  • CO: 0.11 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 5.63 µg/m³
  • PM10: 5.7 µg/m³
  • O3: 0.045 ppm
  • NO2: 0.4 ppb
  • SO2: 0.3 ppb
  • CO: 0.10 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 4.65 µg/m³
  • PM10: 4.72 µg/m³
  • O3: 0.044 ppm
  • NO2: 0.5 ppb
  • SO2: 0.3 ppb
  • CO: 0.11 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 3.83 µg/m³
  • PM10: 3.9 µg/m³
  • O3: 0.042 ppm
  • NO2: 0.7 ppb
  • SO2: 0.4 ppb
  • CO: 0.11 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 3.46 µg/m³
  • PM10: 3.54 µg/m³
  • O3: 0.041 ppm
  • NO2: 0.9 ppb
  • SO2: 0.4 ppb
  • CO: 0.11 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 3.29 µg/m³
  • PM10: 3.39 µg/m³
  • O3: 0.040 ppm
  • NO2: 1.1 ppb
  • SO2: 0.5 ppb
  • CO: 0.12 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 3.27 µg/m³
  • PM10: 3.39 µg/m³
  • O3: 0.036 ppm
  • NO2: 1.7 ppb
  • SO2: 0.5 ppb
  • CO: 0.12 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 3.44 µg/m³
  • PM10: 3.6 µg/m³
  • O3: 0.032 ppm
  • NO2: 2.5 ppb
  • SO2: 0.7 ppb
  • CO: 0.12 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 3.59 µg/m³
  • PM10: 3.8 µg/m³
  • O3: 0.028 ppm
  • NO2: 3.3 ppb
  • SO2: 0.8 ppb
  • CO: 0.13 ppm

Health Recommendations:

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