Hourly Weather | Today Wednesday, March 18, 2026
Meriden, Connecticut
4 PM
Cloudy Weather
37°
Feels Like 36°
0
Humidity: 29%
UV Index: 3
Wind: 8 mph
5 PM
Cloudy Weather
36°
Feels Like 32°
0
Humidity: 31%
UV Index: 2
Wind: 9 mph
6 PM
Cloudy Weather
36°
Feels Like 30°
0
Humidity: 34%
UV Index: 1
Wind: 8 mph
7 PM
Cloudy Weather
34°
Feels Like 28°
0
Humidity: 39%
UV Index: 0
Wind: 7 mph
8 PM
Night
34°
Feels Like 30°
0
Humidity: 36%
UV Index: 0
Wind: 6 mph
9 PM
Cloudy Night
32°
Feels Like 30°
0
Humidity: 43%
UV Index: 0
Wind: 5 mph
10 PM
Cloudy Night
28°
Feels Like 28°
0
Humidity: 49%
UV Index: 0
Wind: 5 mph
11 PM
Cloudy Night
28°
Feels Like 28°
0
Humidity: 54%
UV Index: 0
Wind: 4 mph

Hourly Air Quality Forecast - AQI (US EPA)

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

Pollutant Concentrations:

  • PM2.5: 7.98 µg/m³
  • PM10: 10.89 µg/m³
  • O3: 0.054 ppm
  • NO2: 5.5 ppb
  • SO2: 1.5 ppb
  • CO: 0.18 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 8.16 µg/m³
  • PM10: 11 µg/m³
  • O3: 0.055 ppm
  • NO2: 5.5 ppb
  • SO2: 1.4 ppb
  • CO: 0.18 ppm

Health Recommendations:

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

6 PM
52 AQI
Moderate air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 8.01 µg/m³
  • PM10: 10.88 µg/m³
  • O3: 0.055 ppm
  • NO2: 6.6 ppb
  • SO2: 1.5 ppb
  • CO: 0.18 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 7.71 µg/m³
  • PM10: 10.77 µg/m³
  • O3: 0.053 ppm
  • NO2: 8.4 ppb
  • SO2: 1.5 ppb
  • CO: 0.18 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: O3
Details

Pollutant Concentrations:

  • PM2.5: 7.4 µg/m³
  • PM10: 10.69 µg/m³
  • O3: 0.051 ppm
  • NO2: 8.7 ppb
  • SO2: 1.5 ppb
  • CO: 0.19 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 7.19 µg/m³
  • PM10: 10.73 µg/m³
  • O3: 0.050 ppm
  • NO2: 8.3 ppb
  • SO2: 1.4 ppb
  • CO: 0.19 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 7.07 µg/m³
  • PM10: 10.82 µg/m³
  • O3: 0.049 ppm
  • NO2: 8.2 ppb
  • SO2: 1.3 ppb
  • CO: 0.19 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 7.05 µg/m³
  • PM10: 10.95 µg/m³
  • O3: 0.048 ppm
  • NO2: 8.2 ppb
  • SO2: 1.2 ppb
  • CO: 0.19 ppm

Health Recommendations:

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