Hourly Weather | Today Thursday, May 21, 2026
Brockton, Massachusetts
2 AM
Cloudy Weather
68°
Feels Like 64°
25
Humidity: 54%
UV Index: 0
Wind: 7 mph
3 AM
Cloudy Night
66°
Feels Like 63°
20
Humidity: 53%
UV Index: 0
Wind: 8 mph
4 AM
Cloudy Night
64°
Feels Like 63°
20
Humidity: 51%
UV Index: 0
Wind: 8 mph
5 AM
Cloudy Night
63°
Feels Like 61°
20
Humidity: 50%
UV Index: 0
Wind: 8 mph
6 AM
Cloudy Weather
61°
Feels Like 59°
20
Humidity: 49%
UV Index: 0
Wind: 8 mph
7 AM
Cloudy Weather
61°
Feels Like 57°
13
Humidity: 48%
UV Index: 1
Wind: 9 mph
8 AM
Cloudy Weather
61°
Feels Like 57°
7
Humidity: 45%
UV Index: 1
Wind: 8 mph
9 AM
Cloudy Weather
61°
Feels Like 61°
7
Humidity: 43%
UV Index: 1
Wind: 8 mph
10 AM
Cloudy Weather
61°
Feels Like 63°
7
Humidity: 43%
UV Index: 2
Wind: 8 mph
11 AM
Cloudy Weather
61°
Feels Like 63°
7
Humidity: 43%
UV Index: 2
Wind: 7 mph
12 PM
Cloudy Weather
63°
Feels Like 66°
7
Humidity: 40%
UV Index: 3
Wind: 7 mph
1 PM
Cloudy Weather
64°
Feels Like 70°
5
Humidity: 37%
UV Index: 4
Wind: 7 mph
2 PM
Cloudy Weather
64°
Feels Like 70°
0
Humidity: 35%
UV Index: 4
Wind: 6 mph
3 PM
Cloudy Weather
66°
Feels Like 70°
0
Humidity: 34%
UV Index: 4
Wind: 6 mph
4 PM
Cloudy Weather
64°
Feels Like 70°
0
Humidity: 35%
UV Index: 3
Wind: 6 mph
5 PM
Cloudy Weather
63°
Feels Like 68°
0
Humidity: 37%
UV Index: 3
Wind: 5 mph
6 PM
Cloudy Weather
63°
Feels Like 64°
0
Humidity: 39%
UV Index: 2
Wind: 5 mph
7 PM
Cloudy Weather
61°
Feels Like 61°
0
Humidity: 44%
UV Index: 1
Wind: 5 mph
8 PM
Cloudy Weather
57°
Feels Like 57°
0
Humidity: 51%
UV Index: 0
Wind: 5 mph
9 PM
Cloudy Night
55°
Feels Like 54°
0
Humidity: 60%
UV Index: 0
Wind: 5 mph
10 PM
Cloudy Night
52°
Feels Like 50°
0
Humidity: 69%
UV Index: 0
Wind: 6 mph
11 PM
Cloudy Night
48°
Feels Like 46°
0
Humidity: 77%
UV Index: 0
Wind: 6 mph

Hourly Air Quality Forecast - AQI (US EPA)

2 AM
30 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 2.05 µg/m³
  • PM10: 2.98 µg/m³
  • O3: 0.033 ppm
  • NO2: 2.5 ppb
  • SO2: 0.3 ppb
  • CO: 0.13 ppm

Health Recommendations:

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

3 AM
33 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 1.47 µg/m³
  • PM10: 2.27 µg/m³
  • O3: 0.035 ppm
  • NO2: 2 ppb
  • SO2: 0.3 ppb
  • CO: 0.12 ppm

Health Recommendations:

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

4 AM
34 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 1.36 µg/m³
  • PM10: 2.09 µg/m³
  • O3: 0.037 ppm
  • NO2: 1.7 ppb
  • SO2: 0.3 ppb
  • CO: 0.12 ppm

Health Recommendations:

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

5 AM
34 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 1.44 µg/m³
  • PM10: 2.11 µg/m³
  • O3: 0.036 ppm
  • NO2: 1.6 ppb
  • SO2: 0.3 ppb
  • CO: 0.11 ppm

Health Recommendations:

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

6 AM
32 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 1.52 µg/m³
  • PM10: 2 µg/m³
  • O3: 0.035 ppm
  • NO2: 1.6 ppb
  • SO2: 0.3 ppb
  • CO: 0.11 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 1.52 µg/m³
  • PM10: 1.93 µg/m³
  • O3: 0.033 ppm
  • NO2: 1.7 ppb
  • SO2: 0.3 ppb
  • CO: 0.11 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 1.44 µg/m³
  • PM10: 1.85 µg/m³
  • O3: 0.031 ppm
  • NO2: 1.9 ppb
  • SO2: 0.3 ppb
  • CO: 0.11 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 1.28 µg/m³
  • PM10: 1.68 µg/m³
  • O3: 0.030 ppm
  • NO2: 2.2 ppb
  • SO2: 0.3 ppb
  • CO: 0.12 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 1.13 µg/m³
  • PM10: 1.51 µg/m³
  • O3: 0.031 ppm
  • NO2: 2.3 ppb
  • SO2: 0.3 ppb
  • CO: 0.12 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 1.02 µg/m³
  • PM10: 1.37 µg/m³
  • O3: 0.032 ppm
  • NO2: 2.2 ppb
  • SO2: 0.3 ppb
  • CO: 0.12 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 1.06 µg/m³
  • PM10: 1.42 µg/m³
  • O3: 0.035 ppm
  • NO2: 2 ppb
  • SO2: 0.3 ppb
  • CO: 0.12 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 1.3 µg/m³
  • PM10: 1.68 µg/m³
  • O3: 0.037 ppm
  • NO2: 1.9 ppb
  • SO2: 0.3 ppb
  • CO: 0.12 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 1.67 µg/m³
  • PM10: 2.02 µg/m³
  • O3: 0.039 ppm
  • NO2: 1.7 ppb
  • SO2: 0.3 ppb
  • CO: 0.12 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 2.15 µg/m³
  • PM10: 2.5 µg/m³
  • O3: 0.041 ppm
  • NO2: 1.6 ppb
  • SO2: 0.3 ppb
  • CO: 0.12 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 2.59 µg/m³
  • PM10: 2.95 µg/m³
  • O3: 0.042 ppm
  • NO2: 1.7 ppb
  • SO2: 0.3 ppb
  • CO: 0.13 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 2.86 µg/m³
  • PM10: 3.23 µg/m³
  • O3: 0.042 ppm
  • NO2: 1.9 ppb
  • SO2: 0.4 ppb
  • CO: 0.13 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 3.09 µg/m³
  • PM10: 3.5 µg/m³
  • O3: 0.041 ppm
  • NO2: 2.3 ppb
  • SO2: 0.4 ppb
  • CO: 0.13 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 3.28 µg/m³
  • PM10: 3.75 µg/m³
  • O3: 0.038 ppm
  • NO2: 3.4 ppb
  • SO2: 0.4 ppb
  • CO: 0.14 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 3.37 µg/m³
  • PM10: 3.92 µg/m³
  • O3: 0.035 ppm
  • NO2: 4.3 ppb
  • SO2: 0.3 ppb
  • CO: 0.15 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: 3.37 µg/m³
  • PM10: 4 µg/m³
  • O3: 0.033 ppm
  • NO2: 4.4 ppb
  • SO2: 0.3 ppb
  • CO: 0.15 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 3.33 µg/m³
  • PM10: 4.04 µg/m³
  • O3: 0.031 ppm
  • NO2: 4.2 ppb
  • SO2: 0.3 ppb
  • CO: 0.15 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: 3.27 µg/m³
  • PM10: 4.06 µg/m³
  • O3: 0.030 ppm
  • NO2: 3.9 ppb
  • SO2: 0.3 ppb
  • CO: 0.14 ppm

Health Recommendations:

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