Hourly Weather | Today Wednesday, March 18, 2026
Lafayette, Indiana
7 AM
Snowy Weather
28°
Feels Like 16°
51
Humidity: 67%
UV Index: 0
Wind: 10 mph
8 AM
Snowy Weather
27°
Feels Like 18°
43
Humidity: 74%
UV Index: 0
Wind: 9 mph
9 AM
Cloudy Weather
27°
Feels Like 18°
40
Humidity: 74%
UV Index: 1
Wind: 10 mph
10 AM
Cloudy Weather
28°
Feels Like 19°
40
Humidity: 72%
UV Index: 1
Wind: 12 mph
11 AM
Snowy Weather
30°
Feels Like 19°
44
Humidity: 69%
UV Index: 1
Wind: 13 mph
12 PM
Cloudy Weather
34°
Feels Like 25°
40
Humidity: 65%
UV Index: 1
Wind: 13 mph
1 PM
Cloudy Weather
36°
Feels Like 27°
28
Humidity: 62%
UV Index: 2
Wind: 13 mph
2 PM
Cloudy Weather
37°
Feels Like 34°
10
Humidity: 58%
UV Index: 3
Wind: 13 mph
3 PM
Cloudy Weather
41°
Feels Like 36°
10
Humidity: 55%
UV Index: 3
Wind: 13 mph
4 PM
Cloudy Weather
45°
Feels Like 39°
10
Humidity: 53%
UV Index: 3
Wind: 12 mph
5 PM
Cloudy Weather
45°
Feels Like 41°
10
Humidity: 52%
UV Index: 2
Wind: 10 mph
6 PM
Cloudy Weather
46°
Feels Like 43°
10
Humidity: 51%
UV Index: 1
Wind: 9 mph
7 PM
Cloudy Weather
45°
Feels Like 39°
7
Humidity: 56%
UV Index: 0
Wind: 7 mph
8 PM
Cloudy Weather
43°
Feels Like 39°
0
Humidity: 63%
UV Index: 0
Wind: 6 mph
9 PM
Cloudy Weather
39°
Feels Like 37°
0
Humidity: 69%
UV Index: 0
Wind: 6 mph
10 PM
Cloudy Weather
37°
Feels Like 36°
0
Humidity: 76%
UV Index: 0
Wind: 5 mph
11 PM
Cloudy Night
36°
Feels Like 36°
0
Humidity: 80%
UV Index: 0
Wind: 5 mph

Hourly Air Quality Forecast - AQI (US EPA)

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

Pollutant Concentrations:

  • PM2.5: 4.55 µg/m³
  • PM10: 5.3 µg/m³
  • O3: 0.050 ppm
  • NO2: 2.4 ppb
  • SO2: 2.8 ppb
  • CO: 0.14 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 5.13 µg/m³
  • PM10: 5.99 µg/m³
  • O3: 0.049 ppm
  • NO2: 2.5 ppb
  • SO2: 3.2 ppb
  • CO: 0.14 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 5.64 µg/m³
  • PM10: 6.58 µg/m³
  • O3: 0.049 ppm
  • NO2: 2.9 ppb
  • SO2: 3.5 ppb
  • CO: 0.14 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 5.7 µg/m³
  • PM10: 6.67 µg/m³
  • O3: 0.048 ppm
  • NO2: 3.8 ppb
  • SO2: 3.4 ppb
  • CO: 0.14 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 5.33 µg/m³
  • PM10: 6.25 µg/m³
  • O3: 0.049 ppm
  • NO2: 3.9 ppb
  • SO2: 2.9 ppb
  • CO: 0.14 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 4.93 µg/m³
  • PM10: 5.78 µg/m³
  • O3: 0.050 ppm
  • NO2: 3.1 ppb
  • SO2: 2.2 ppb
  • CO: 0.14 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 4.85 µg/m³
  • PM10: 5.68 µg/m³
  • O3: 0.051 ppm
  • NO2: 2.4 ppb
  • SO2: 1.8 ppb
  • CO: 0.14 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 5.15 µg/m³
  • PM10: 6.02 µg/m³
  • O3: 0.052 ppm
  • NO2: 1.9 ppb
  • SO2: 1.6 ppb
  • CO: 0.14 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 5.81 µg/m³
  • PM10: 6.7 µg/m³
  • O3: 0.054 ppm
  • NO2: 1.4 ppb
  • SO2: 1.5 ppb
  • CO: 0.14 ppm

Health Recommendations:

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

4 PM
54 AQI
Moderate air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 6.27 µg/m³
  • PM10: 7.11 µg/m³
  • O3: 0.055 ppm
  • NO2: 1.1 ppb
  • SO2: 1.3 ppb
  • CO: 0.14 ppm

Health Recommendations:

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

5 PM
58 AQI
Moderate air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 6.25 µg/m³
  • PM10: 7.02 µg/m³
  • O3: 0.056 ppm
  • NO2: 0.9 ppb
  • SO2: 1.2 ppb
  • CO: 0.13 ppm

Health Recommendations:

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

6 PM
52 AQI
Moderate air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 5.51 µg/m³
  • PM10: 6.24 µg/m³
  • O3: 0.055 ppm
  • NO2: 1.3 ppb
  • SO2: 0.9 ppb
  • CO: 0.14 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 5.15 µg/m³
  • PM10: 5.89 µg/m³
  • O3: 0.049 ppm
  • NO2: 2.6 ppb
  • SO2: 0.6 ppb
  • CO: 0.16 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: 5.44 µg/m³
  • PM10: 6.25 µg/m³
  • O3: 0.044 ppm
  • NO2: 4.3 ppb
  • SO2: 0.4 ppb
  • CO: 0.17 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 5.72 µg/m³
  • PM10: 6.61 µg/m³
  • O3: 0.040 ppm
  • NO2: 5.3 ppb
  • SO2: 0.3 ppb
  • CO: 0.19 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 6.04 µg/m³
  • PM10: 7.05 µg/m³
  • O3: 0.037 ppm
  • NO2: 5.6 ppb
  • SO2: 0.3 ppb
  • CO: 0.20 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 6.58 µg/m³
  • PM10: 7.68 µg/m³
  • O3: 0.035 ppm
  • NO2: 5.7 ppb
  • SO2: 0.2 ppb
  • CO: 0.20 ppm

Health Recommendations:

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