Hourly Weather | Today Monday, September 21, 2026
Meriden, Connecticut
3 PM
Cloudy Weather
68°
Feels Like 70°
0
Humidity: 65%
UV Index: 4
Wind: 9 mph
4 PM
Cloudy Weather
68°
Feels Like 68°
0
Humidity: 64%
UV Index: 2
Wind: 8 mph
5 PM
Cloudy Weather
66°
Feels Like 66°
0
Humidity: 62%
UV Index: 2
Wind: 7 mph
6 PM
Cloudy Weather
66°
Feels Like 64°
0
Humidity: 64%
UV Index: 1
Wind: 7 mph
7 PM
Cloudy Night
64°
Feels Like 63°
0
Humidity: 68%
UV Index: 0
Wind: 6 mph
8 PM
Cloudy Weather
63°
Feels Like 61°
0
Humidity: 73%
UV Index: 0
Wind: 5 mph
9 PM
Cloudy Weather
61°
Feels Like 59°
0
Humidity: 78%
UV Index: 0
Wind: 5 mph
10 PM
Cloudy Weather
57°
Feels Like 57°
0
Humidity: 82%
UV Index: 0
Wind: 5 mph
11 PM
Cloudy Weather
57°
Feels Like 55°
0
Humidity: 83%
UV Index: 0
Wind: 5 mph

Hourly Air Quality Forecast - AQI (US EPA)

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

Pollutant Concentrations:

  • PM2.5: 3.73 µg/m³
  • PM10: 6.16 µg/m³
  • O3: 0.041 ppm
  • NO2: 3.1 ppb
  • SO2: 0.8 ppb
  • CO: 0.18 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 3.75 µg/m³
  • PM10: 6.21 µg/m³
  • O3: 0.043 ppm
  • NO2: 3 ppb
  • SO2: 0.7 ppb
  • CO: 0.18 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: 3.77 µg/m³
  • PM10: 6.28 µg/m³
  • O3: 0.044 ppm
  • NO2: 3.1 ppb
  • SO2: 0.7 ppb
  • CO: 0.18 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 3.9 µg/m³
  • PM10: 6.47 µg/m³
  • O3: 0.044 ppm
  • NO2: 3.8 ppb
  • SO2: 0.8 ppb
  • CO: 0.18 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 4.16 µg/m³
  • PM10: 6.96 µg/m³
  • O3: 0.043 ppm
  • NO2: 4.6 ppb
  • SO2: 0.9 ppb
  • CO: 0.19 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 4.38 µg/m³
  • PM10: 7.43 µg/m³
  • O3: 0.043 ppm
  • NO2: 4.8 ppb
  • SO2: 0.9 ppb
  • CO: 0.19 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 4.42 µg/m³
  • PM10: 7.69 µg/m³
  • O3: 0.042 ppm
  • NO2: 4.4 ppb
  • SO2: 0.9 ppb
  • CO: 0.19 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 4.24 µg/m³
  • PM10: 7.56 µg/m³
  • O3: 0.042 ppm
  • NO2: 4.1 ppb
  • SO2: 0.8 ppb
  • CO: 0.19 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 3.79 µg/m³
  • PM10: 6.96 µg/m³
  • O3: 0.041 ppm
  • NO2: 3.8 ppb
  • SO2: 0.8 ppb
  • CO: 0.18 ppm

Health Recommendations:

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