Hourly Weather | Today Tuesday, July 21, 2026
Lafayette, Indiana
4 AM
Stormy Weather
73°
Feels Like 75°
58
Humidity: 86%
UV Index: 0
Wind: 6 mph
5 AM
Cloudy Night
73°
Feels Like 75°
49
Humidity: 88%
UV Index: 0
Wind: 7 mph
6 AM
Stormy Weather
72°
Feels Like 70°
66
Humidity: 91%
UV Index: 0
Wind: 6 mph
7 AM
Stormy Weather
70°
Feels Like 70°
67
Humidity: 99%
UV Index: 0
Wind: 6 mph
8 AM
Sunny with a Chance of Thunderstorms
73°
Feels Like 75°
60
Humidity: 95%
UV Index: 1
Wind: 6 mph
9 AM
Sunny with a Chance of Thunderstorms
73°
Feels Like 79°
60
Humidity: 92%
UV Index: 1
Wind: 7 mph
10 AM
Cloudy Weather
77°
Feels Like 84°
49
Humidity: 85%
UV Index: 2
Wind: 8 mph
11 AM
Cloudy Weather
79°
Feels Like 88°
34
Humidity: 78%
UV Index: 4
Wind: 9 mph
12 PM
Cloudy Weather
82°
Feels Like 90°
34
Humidity: 70%
UV Index: 5
Wind: 10 mph
1 PM
Cloudy Weather
84°
Feels Like 90°
29
Humidity: 62%
UV Index: 6
Wind: 10 mph
2 PM
Cloudy Weather
86°
Feels Like 91°
20
Humidity: 56%
UV Index: 5
Wind: 12 mph
3 PM
Cloudy Weather
88°
Feels Like 91°
20
Humidity: 53%
UV Index: 4
Wind: 12 mph
4 PM
Cloudy Weather
86°
Feels Like 90°
20
Humidity: 54%
UV Index: 3
Wind: 13 mph
5 PM
Cloudy Weather
84°
Feels Like 88°
20
Humidity: 56%
UV Index: 3
Wind: 12 mph
6 PM
Cloudy Weather
84°
Feels Like 86°
20
Humidity: 57%
UV Index: 2
Wind: 12 mph
7 PM
Cloudy Weather
82°
Feels Like 82°
13
Humidity: 62%
UV Index: 1
Wind: 10 mph
8 PM
Cloudy Weather
79°
Feels Like 79°
0
Humidity: 67%
UV Index: 0
Wind: 9 mph
9 PM
Cloudy Weather
77°
Feels Like 77°
0
Humidity: 71%
UV Index: 0
Wind: 8 mph
10 PM
Cloudy Night
73°
Feels Like 75°
0
Humidity: 78%
UV Index: 0
Wind: 6 mph
11 PM
Cloudy Night
72°
Feels Like 73°
0
Humidity: 81%
UV Index: 0
Wind: 5 mph

Hourly Air Quality Forecast - AQI (US EPA)

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

Pollutant Concentrations:

  • PM2.5: 14.05 µg/m³
  • PM10: 14.3 µg/m³
  • O3: 0.028 ppm
  • NO2: 1.3 ppb
  • SO2: 0.3 ppb
  • CO: 0.19 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 12.29 µg/m³
  • PM10: 12.59 µg/m³
  • O3: 0.026 ppm
  • NO2: 1.2 ppb
  • SO2: 0.3 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.

6 AM
43 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 10.22 µg/m³
  • PM10: 10.5 µg/m³
  • O3: 0.024 ppm
  • NO2: 1.2 ppb
  • SO2: 0.7 ppb
  • CO: 0.14 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 8.53 µg/m³
  • PM10: 8.72 µg/m³
  • O3: 0.021 ppm
  • NO2: 1.2 ppb
  • SO2: 0.8 ppb
  • CO: 0.12 ppm

Health Recommendations:

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

8 AM
30 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 7.17 µg/m³
  • PM10: 7.3 µg/m³
  • O3: 0.018 ppm
  • NO2: 1.5 ppb
  • SO2: 0.7 ppb
  • CO: 0.11 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 6.17 µg/m³
  • PM10: 6.27 µg/m³
  • O3: 0.016 ppm
  • NO2: 1.9 ppb
  • SO2: 0.5 ppb
  • CO: 0.11 ppm

Health Recommendations:

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

10 AM
23 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 5.51 µg/m³
  • PM10: 5.6 µg/m³
  • O3: 0.016 ppm
  • NO2: 2.1 ppb
  • SO2: 0.5 ppb
  • CO: 0.11 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 5.02 µg/m³
  • PM10: 5.12 µg/m³
  • O3: 0.017 ppm
  • NO2: 1.8 ppb
  • SO2: 0.5 ppb
  • CO: 0.11 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 4.83 µg/m³
  • PM10: 4.93 µg/m³
  • O3: 0.021 ppm
  • NO2: 1.5 ppb
  • SO2: 0.5 ppb
  • CO: 0.11 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 5.24 µg/m³
  • PM10: 5.35 µg/m³
  • O3: 0.025 ppm
  • NO2: 1.1 ppb
  • SO2: 0.5 ppb
  • CO: 0.10 ppm

Health Recommendations:

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

2 PM
26 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 6.17 µg/m³
  • PM10: 6.27 µg/m³
  • O3: 0.027 ppm
  • NO2: 0.9 ppb
  • SO2: 0.5 ppb
  • CO: 0.10 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 6.54 µg/m³
  • PM10: 6.64 µg/m³
  • O3: 0.030 ppm
  • NO2: 0.8 ppb
  • SO2: 0.5 ppb
  • CO: 0.10 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: 6.33 µg/m³
  • PM10: 6.42 µg/m³
  • O3: 0.034 ppm
  • NO2: 0.7 ppb
  • SO2: 0.4 ppb
  • CO: 0.10 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: 6.41 µg/m³
  • PM10: 6.51 µg/m³
  • O3: 0.036 ppm
  • NO2: 0.6 ppb
  • SO2: 0.4 ppb
  • CO: 0.11 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 6.41 µg/m³
  • PM10: 6.52 µg/m³
  • O3: 0.037 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
34 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 6.15 µg/m³
  • PM10: 6.26 µg/m³
  • O3: 0.037 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
33 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 5.77 µg/m³
  • PM10: 5.88 µg/m³
  • O3: 0.036 ppm
  • NO2: 1.1 ppb
  • SO2: 0.4 ppb
  • CO: 0.11 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 5.44 µg/m³
  • PM10: 5.55 µg/m³
  • O3: 0.034 ppm
  • NO2: 1.3 ppb
  • SO2: 0.4 ppb
  • CO: 0.11 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 5.24 µg/m³
  • PM10: 5.35 µg/m³
  • O3: 0.032 ppm
  • NO2: 1.4 ppb
  • SO2: 0.4 ppb
  • CO: 0.12 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: 4.98 µg/m³
  • PM10: 5.09 µg/m³
  • O3: 0.030 ppm
  • NO2: 1.5 ppb
  • SO2: 0.4 ppb
  • CO: 0.12 ppm

Health Recommendations:

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