Hourly Weather | Today Wednesday, August 12, 2026
Chicopee, Massachusetts
9 AM
Cloudy Weather
72°
Feels Like 77°
0
Humidity: 68%
UV Index: 3
Wind: 4 mph
10 AM
Cloudy Weather
77°
Feels Like 81°
0
Humidity: 58%
UV Index: 4
Wind: 4 mph
11 AM
Cloudy Weather
81°
Feels Like 86°
0
Humidity: 50%
UV Index: 6
Wind: 6 mph
12 PM
Cloudy Weather
82°
Feels Like 90°
0
Humidity: 45%
UV Index: 7
Wind: 6 mph
1 PM
Cloudy Weather
84°
Feels Like 91°
0
Humidity: 42%
UV Index: 8
Wind: 7 mph
2 PM
Cloudy Weather
84°
Feels Like 91°
0
Humidity: 39%
UV Index: 7
Wind: 7 mph
3 PM
Cloudy Weather
86°
Feels Like 90°
0
Humidity: 38%
UV Index: 6
Wind: 8 mph
4 PM
Cloudy Weather
86°
Feels Like 88°
0
Humidity: 36%
UV Index: 4
Wind: 8 mph
5 PM
Cloudy Weather
86°
Feels Like 86°
0
Humidity: 38%
UV Index: 3
Wind: 8 mph
6 PM
Cloudy Weather
84°
Feels Like 82°
0
Humidity: 41%
UV Index: 2
Wind: 7 mph
7 PM
Cloudy Weather
81°
Feels Like 81°
0
Humidity: 46%
UV Index: 1
Wind: 6 mph
8 PM
Cloudy Night
79°
Feels Like 77°
19
Humidity: 55%
UV Index: 0
Wind: 4 mph
9 PM
Cloudy Night
75°
Feels Like 73°
19
Humidity: 65%
UV Index: 0
Wind: 4 mph
10 PM
Cloudy Night
72°
Feels Like 72°
24
Humidity: 74%
UV Index: 0
Wind: 4 mph
11 PM
Cloudy Night
68°
Feels Like 68°
47
Humidity: 82%
UV Index: 0
Wind: 4 mph

Hourly Air Quality Forecast - AQI (US EPA)

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

Pollutant Concentrations:

  • PM2.5: 3.55 µg/m³
  • PM10: 4.87 µg/m³
  • O3: 0.018 ppm
  • NO2: 6.1 ppb
  • SO2: 1.3 ppb
  • CO: 0.14 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 3.82 µg/m³
  • PM10: 5.23 µg/m³
  • O3: 0.022 ppm
  • NO2: 5.7 ppb
  • SO2: 1.4 ppb
  • CO: 0.14 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 4.5 µg/m³
  • PM10: 5.96 µg/m³
  • O3: 0.029 ppm
  • NO2: 5.5 ppb
  • SO2: 1.6 ppb
  • CO: 0.14 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 3.53 µg/m³
  • PM10: 4.33 µg/m³
  • O3: 0.041 ppm
  • NO2: 2.9 ppb
  • SO2: 1 ppb
  • CO: 0.11 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 3.23 µg/m³
  • PM10: 3.85 µg/m³
  • O3: 0.045 ppm
  • NO2: 2 ppb
  • SO2: 0.7 ppb
  • CO: 0.10 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 3.59 µg/m³
  • PM10: 4.22 µg/m³
  • O3: 0.047 ppm
  • NO2: 2 ppb
  • SO2: 0.8 ppb
  • CO: 0.10 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 3.81 µg/m³
  • PM10: 4.49 µg/m³
  • O3: 0.047 ppm
  • NO2: 2.6 ppb
  • SO2: 0.9 ppb
  • CO: 0.10 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 3.71 µg/m³
  • PM10: 4.43 µg/m³
  • O3: 0.046 ppm
  • NO2: 3.4 ppb
  • SO2: 1 ppb
  • CO: 0.11 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 3.51 µg/m³
  • PM10: 4.27 µg/m³
  • O3: 0.044 ppm
  • NO2: 4.3 ppb
  • SO2: 1 ppb
  • CO: 0.11 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 3.49 µg/m³
  • PM10: 4.36 µg/m³
  • O3: 0.040 ppm
  • NO2: 6.1 ppb
  • SO2: 1.1 ppb
  • CO: 0.12 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 3.89 µg/m³
  • PM10: 4.98 µg/m³
  • O3: 0.036 ppm
  • NO2: 8.1 ppb
  • SO2: 1.1 ppb
  • CO: 0.14 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 4.31 µg/m³
  • PM10: 5.55 µg/m³
  • O3: 0.033 ppm
  • NO2: 8.7 ppb
  • SO2: 1 ppb
  • CO: 0.14 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 4.87 µg/m³
  • PM10: 6.39 µg/m³
  • O3: 0.032 ppm
  • NO2: 9 ppb
  • SO2: 1.1 ppb
  • CO: 0.15 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 5.36 µg/m³
  • PM10: 7.3 µg/m³
  • O3: 0.030 ppm
  • NO2: 10.1 ppb
  • SO2: 1.3 ppb
  • CO: 0.15 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 5.5 µg/m³
  • PM10: 7.73 µg/m³
  • O3: 0.026 ppm
  • NO2: 11.4 ppb
  • SO2: 1.5 ppb
  • CO: 0.16 ppm

Health Recommendations:

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