Hourly Weather | Today Tuesday, September 1, 2026
Chicopee, Massachusetts
12 PM
Rainy Weather
70°
Feels Like 68°
73
Humidity: 90%
UV Index: 1
Wind: 8 mph
1 PM
Rainy Weather
72°
Feels Like 70°
80
Humidity: 86%
UV Index: 2
Wind: 9 mph
2 PM
Cloudy Weather
72°
Feels Like 73°
49
Humidity: 82%
UV Index: 2
Wind: 9 mph
3 PM
Rainy Weather
72°
Feels Like 70°
61
Humidity: 83%
UV Index: 1
Wind: 11 mph
4 PM
Rainy Weather
72°
Feels Like 70°
54
Humidity: 84%
UV Index: 1
Wind: 11 mph
5 PM
Rainy Weather
70°
Feels Like 66°
66
Humidity: 84%
UV Index: 1
Wind: 9 mph
6 PM
Rainy Weather
70°
Feels Like 66°
66
Humidity: 85%
UV Index: 0
Wind: 9 mph
7 PM
Cloudy Weather
68°
Feels Like 66°
49
Humidity: 85%
UV Index: 0
Wind: 9 mph
8 PM
Stormy Weather
66°
Feels Like 61°
61
Humidity: 90%
UV Index: 0
Wind: 8 mph
9 PM
Cloudy Night
64°
Feels Like 63°
49
Humidity: 92%
UV Index: 0
Wind: 8 mph
10 PM
Cloudy Night
64°
Feels Like 63°
49
Humidity: 92%
UV Index: 0
Wind: 8 mph
11 PM
Cloudy Weather
64°
Feels Like 63°
49
Humidity: 93%
UV Index: 0
Wind: 8 mph

Hourly Air Quality Forecast - AQI (US EPA)

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

Pollutant Concentrations:

  • PM2.5: 9.66 µg/m³
  • PM10: 11.76 µg/m³
  • O3: 0.022 ppm
  • NO2: 13.5 ppb
  • SO2: 1.7 ppb
  • CO: 0.21 ppm

Health Recommendations:

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

1 PM
39 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 9.45 µg/m³
  • PM10: 11.24 µg/m³
  • O3: 0.026 ppm
  • NO2: 12.5 ppb
  • SO2: 1.6 ppb
  • CO: 0.21 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 9.45 µg/m³
  • PM10: 11.07 µg/m³
  • O3: 0.030 ppm
  • NO2: 11.8 ppb
  • SO2: 1.5 ppb
  • CO: 0.20 ppm

Health Recommendations:

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

3 PM
40 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 9.66 µg/m³
  • PM10: 11.25 µg/m³
  • O3: 0.031 ppm
  • NO2: 11.5 ppb
  • SO2: 1.5 ppb
  • CO: 0.21 ppm

Health Recommendations:

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

4 PM
44 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 10.57 µg/m³
  • PM10: 12.34 µg/m³
  • O3: 0.029 ppm
  • NO2: 12.3 ppb
  • SO2: 1.5 ppb
  • CO: 0.22 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 11.35 µg/m³
  • PM10: 13.3 µg/m³
  • O3: 0.026 ppm
  • NO2: 13.7 ppb
  • SO2: 1.6 ppb
  • CO: 0.23 ppm

Health Recommendations:

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

6 PM
49 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 11.77 µg/m³
  • PM10: 13.96 µg/m³
  • O3: 0.022 ppm
  • NO2: 15.5 ppb
  • SO2: 1.6 ppb
  • CO: 0.24 ppm

Health Recommendations:

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

7 PM
50 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 11.9 µg/m³
  • PM10: 14.41 µg/m³
  • O3: 0.018 ppm
  • NO2: 17.3 ppb
  • SO2: 1.6 ppb
  • CO: 0.26 ppm

Health Recommendations:

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

8 PM
47 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 11.39 µg/m³
  • PM10: 13.91 µg/m³
  • O3: 0.015 ppm
  • NO2: 17.8 ppb
  • SO2: 1.5 ppb
  • CO: 0.26 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 10.01 µg/m³
  • PM10: 12.26 µg/m³
  • O3: 0.015 ppm
  • NO2: 15.7 ppb
  • SO2: 1.2 ppb
  • CO: 0.24 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 8.26 µg/m³
  • PM10: 10.2 µg/m³
  • O3: 0.017 ppm
  • NO2: 12.3 ppb
  • SO2: 0.9 ppb
  • CO: 0.21 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: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 6.25 µg/m³
  • PM10: 7.8 µg/m³
  • O3: 0.020 ppm
  • NO2: 8.7 ppb
  • SO2: 0.7 ppb
  • CO: 0.18 ppm

Health Recommendations:

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