Hourly Weather | Today Monday, April 27, 2026
Quincy, Massachusetts
1 PM
Cloudy Weather
59°
Feels Like 64°
0
Humidity: 41%
UV Index: 8
Wind: 9 mph
2 PM
Cloudy Weather
61°
Feels Like 66°
0
Humidity: 39%
UV Index: 7
Wind: 9 mph
3 PM
Cloudy Weather
63°
Feels Like 66°
0
Humidity: 37%
UV Index: 5
Wind: 9 mph
4 PM
Cloudy Weather
63°
Feels Like 66°
0
Humidity: 35%
UV Index: 4
Wind: 8 mph
5 PM
Cloudy Weather
61°
Feels Like 63°
0
Humidity: 37%
UV Index: 3
Wind: 8 mph
6 PM
Cloudy Weather
59°
Feels Like 59°
0
Humidity: 41%
UV Index: 2
Wind: 7 mph
7 PM
Cloudy Weather
55°
Feels Like 55°
0
Humidity: 47%
UV Index: 1
Wind: 6 mph
8 PM
Night
54°
Feels Like 52°
0
Humidity: 54%
UV Index: 0
Wind: 5 mph
9 PM
Night
50°
Feels Like 48°
0
Humidity: 63%
UV Index: 0
Wind: 6 mph
10 PM
Night
46°
Feels Like 45°
0
Humidity: 72%
UV Index: 0
Wind: 6 mph
11 PM
Night
43°
Feels Like 41°
0
Humidity: 82%
UV Index: 0
Wind: 6 mph

Hourly Air Quality Forecast - AQI (US EPA)

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

Pollutant Concentrations:

  • PM2.5: 7.26 µg/m³
  • PM10: 8.25 µg/m³
  • O3: 0.053 ppm
  • NO2: 2.1 ppb
  • SO2: 0.5 ppb
  • CO: 0.16 ppm

Health Recommendations:

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

2 PM
57 AQI
Moderate air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 7.23 µg/m³
  • PM10: 8.09 µg/m³
  • O3: 0.056 ppm
  • NO2: 1.3 ppb
  • SO2: 0.4 ppb
  • CO: 0.15 ppm

Health Recommendations:

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

3 PM
62 AQI
Moderate air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 6.1 µg/m³
  • PM10: 6.87 µg/m³
  • O3: 0.058 ppm
  • NO2: 0.9 ppb
  • SO2: 0.4 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.

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

Pollutant Concentrations:

  • PM2.5: 4.6 µg/m³
  • PM10: 5.34 µg/m³
  • O3: 0.057 ppm
  • NO2: 0.8 ppb
  • SO2: 0.3 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.

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

Pollutant Concentrations:

  • PM2.5: 3.34 µg/m³
  • PM10: 4.05 µg/m³
  • O3: 0.056 ppm
  • NO2: 0.9 ppb
  • SO2: 0.3 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
49 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 2.66 µg/m³
  • PM10: 3.38 µg/m³
  • O3: 0.053 ppm
  • NO2: 1.6 ppb
  • SO2: 0.3 ppb
  • CO: 0.13 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: 2.4 µg/m³
  • PM10: 3.18 µg/m³
  • O3: 0.049 ppm
  • NO2: 3 ppb
  • SO2: 0.3 ppb
  • CO: 0.14 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 2.28 µg/m³
  • PM10: 3.14 µg/m³
  • O3: 0.046 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.

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

Pollutant Concentrations:

  • PM2.5: 2.31 µg/m³
  • PM10: 3.3 µg/m³
  • O3: 0.041 ppm
  • NO2: 5 ppb
  • SO2: 0.3 ppb
  • CO: 0.16 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: O3
Details

Pollutant Concentrations:

  • PM2.5: 2.47 µg/m³
  • PM10: 3.66 µg/m³
  • O3: 0.037 ppm
  • NO2: 5.8 ppb
  • SO2: 0.3 ppb
  • CO: 0.17 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 2.68 µg/m³
  • PM10: 4.05 µg/m³
  • O3: 0.034 ppm
  • NO2: 6.3 ppb
  • SO2: 0.2 ppb
  • CO: 0.17 ppm

Health Recommendations:

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