Hourly Weather | Today Wednesday, March 18, 2026
Erie, Pennsylvania
11 AM
Cloudy Weather
27°
Feels Like 16°
0
Humidity: 45%
UV Index: 1
Wind: 12 mph
12 PM
Cloudy Weather
28°
Feels Like 18°
0
Humidity: 42%
UV Index: 1
Wind: 13 mph
1 PM
Cloudy Weather
30°
Feels Like 19°
0
Humidity: 42%
UV Index: 1
Wind: 13 mph
2 PM
Cloudy Weather
30°
Feels Like 21°
1
Humidity: 42%
UV Index: 1
Wind: 13 mph
3 PM
Cloudy Weather
32°
Feels Like 23°
1
Humidity: 41%
UV Index: 1
Wind: 12 mph
4 PM
Cloudy Weather
32°
Feels Like 23°
1
Humidity: 42%
UV Index: 1
Wind: 12 mph
5 PM
Cloudy Weather
34°
Feels Like 23°
1
Humidity: 42%
UV Index: 1
Wind: 12 mph
6 PM
Cloudy Weather
34°
Feels Like 25°
1
Humidity: 41%
UV Index: 0
Wind: 12 mph
7 PM
Cloudy Weather
36°
Feels Like 27°
3
Humidity: 39%
UV Index: 0
Wind: 10 mph
8 PM
Cloudy Weather
34°
Feels Like 25°
7
Humidity: 43%
UV Index: 0
Wind: 10 mph
9 PM
Cloudy Weather
30°
Feels Like 21°
7
Humidity: 50%
UV Index: 0
Wind: 10 mph
10 PM
Cloudy Weather
32°
Feels Like 21°
7
Humidity: 53%
UV Index: 0
Wind: 10 mph
11 PM
Cloudy Weather
32°
Feels Like 21°
7
Humidity: 57%
UV Index: 0
Wind: 12 mph

Hourly Air Quality Forecast - AQI (US EPA)

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

Pollutant Concentrations:

  • PM2.5: 4.16 µg/m³
  • PM10: 5.68 µg/m³
  • O3: 0.044 ppm
  • NO2: 3.8 ppb
  • SO2: 1.1 ppb
  • CO: 0.17 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: 3.62 µg/m³
  • PM10: 4.66 µg/m³
  • O3: 0.048 ppm
  • NO2: 2.8 ppb
  • SO2: 1.5 ppb
  • CO: 0.16 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 3.62 µg/m³
  • PM10: 4.46 µg/m³
  • O3: 0.049 ppm
  • NO2: 2.4 ppb
  • SO2: 1.9 ppb
  • CO: 0.15 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 3.91 µg/m³
  • PM10: 4.7 µg/m³
  • O3: 0.050 ppm
  • NO2: 2.4 ppb
  • SO2: 2.1 ppb
  • CO: 0.15 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 3.89 µg/m³
  • PM10: 4.63 µg/m³
  • O3: 0.051 ppm
  • NO2: 2.4 ppb
  • SO2: 2.3 ppb
  • CO: 0.15 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 3.56 µg/m³
  • PM10: 4.25 µg/m³
  • O3: 0.052 ppm
  • NO2: 2.5 ppb
  • SO2: 2.4 ppb
  • CO: 0.15 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 3.25 µg/m³
  • PM10: 3.91 µg/m³
  • O3: 0.052 ppm
  • NO2: 2.8 ppb
  • SO2: 2.3 ppb
  • CO: 0.15 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 3.26 µg/m³
  • PM10: 3.97 µg/m³
  • O3: 0.051 ppm
  • NO2: 3.8 ppb
  • SO2: 2.2 ppb
  • CO: 0.15 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 3.61 µg/m³
  • PM10: 4.42 µg/m³
  • O3: 0.049 ppm
  • NO2: 5 ppb
  • SO2: 2.2 ppb
  • CO: 0.15 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 3.83 µg/m³
  • PM10: 4.75 µg/m³
  • O3: 0.048 ppm
  • NO2: 5.4 ppb
  • SO2: 2.1 ppb
  • CO: 0.16 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 3.87 µg/m³
  • PM10: 4.88 µg/m³
  • O3: 0.047 ppm
  • NO2: 5.2 ppb
  • SO2: 2.1 ppb
  • CO: 0.16 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 3.85 µg/m³
  • PM10: 4.89 µg/m³
  • O3: 0.048 ppm
  • NO2: 4.8 ppb
  • SO2: 2.2 ppb
  • CO: 0.16 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 3.78 µg/m³
  • PM10: 4.81 µg/m³
  • O3: 0.049 ppm
  • NO2: 4.2 ppb
  • SO2: 2.2 ppb
  • CO: 0.16 ppm

Health Recommendations:

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