Hourly Weather | Today Tuesday, June 30, 2026
Active Weather Warnings
Meriden, Connecticut
1 AM
Cloudy Night
66°
Feels Like 66°
0
Humidity: 94%
UV Index: 0
Wind: 5 mph
2 AM
Cloudy Night
66°
Feels Like 66°
0
Humidity: 93%
UV Index: 0
Wind: 5 mph
3 AM
Cloudy Night
64°
Feels Like 66°
0
Humidity: 95%
UV Index: 0
Wind: 5 mph
4 AM
Cloudy Night
63°
Feels Like 64°
0
Humidity: 98%
UV Index: 0
Wind: 5 mph
5 AM
Cloudy Night
63°
Feels Like 63°
0
Humidity: 100%
UV Index: 0
Wind: 4 mph
6 AM
Cloudy Weather
61°
Feels Like 63°
0
Humidity: 100%
UV Index: 0
Wind: 5 mph
7 AM
Cloudy Weather
64°
Feels Like 66°
0
Humidity: 92%
UV Index: 1
Wind: 5 mph
8 AM
Sunny Weather
70°
Feels Like 73°
0
Humidity: 84%
UV Index: 2
Wind: 6 mph
9 AM
Sunny Weather
75°
Feels Like 81°
0
Humidity: 74%
UV Index: 3
Wind: 6 mph
10 AM
Sunny Weather
79°
Feels Like 84°
0
Humidity: 69%
UV Index: 5
Wind: 7 mph
11 AM
Cloudy Weather
81°
Feels Like 90°
1
Humidity: 65%
UV Index: 7
Wind: 8 mph
12 PM
Cloudy Weather
84°
Feels Like 93°
1
Humidity: 60%
UV Index: 10
Wind: 9 mph
1 PM
Cloudy Weather
88°
Feels Like 95°
4
Humidity: 55%
UV Index: 9
Wind: 9 mph
2 PM
Cloudy Weather
88°
Feels Like 95°
13
Humidity: 52%
UV Index: 6
Wind: 10 mph
3 PM
Cloudy Weather
88°
Feels Like 91°
13
Humidity: 52%
UV Index: 4
Wind: 10 mph
4 PM
Cloudy Weather
86°
Feels Like 88°
17
Humidity: 52%
UV Index: 2
Wind: 10 mph
5 PM
Stormy Weather
84°
Feels Like 81°
51
Humidity: 56%
UV Index: 1
Wind: 9 mph
6 PM
Cloudy Weather
82°
Feels Like 82°
47
Humidity: 56%
UV Index: 1
Wind: 9 mph
7 PM
Cloudy Weather
79°
Feels Like 79°
40
Humidity: 57%
UV Index: 1
Wind: 9 mph
8 PM
Cloudy Weather
77°
Feels Like 75°
34
Humidity: 60%
UV Index: 0
Wind: 9 mph
9 PM
Cloudy Night
75°
Feels Like 72°
34
Humidity: 63%
UV Index: 0
Wind: 8 mph
10 PM
Cloudy Night
72°
Feels Like 70°
40
Humidity: 70%
UV Index: 0
Wind: 7 mph
11 PM
Stormy Weather
70°
Feels Like 66°
51
Humidity: 76%
UV Index: 0
Wind: 7 mph

Hourly Air Quality Forecast - AQI (US EPA)

1 AM
39 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 9.46 µg/m³
  • PM10: 11.58 µg/m³
  • O3: 0.042 ppm
  • NO2: 3.7 ppb
  • SO2: 0.7 ppb
  • CO: 0.13 ppm

Health Recommendations:

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

2 AM
39 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 9.3 µg/m³
  • PM10: 11.42 µg/m³
  • O3: 0.040 ppm
  • NO2: 3.6 ppb
  • SO2: 0.7 ppb
  • CO: 0.12 ppm

Health Recommendations:

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

3 AM
38 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 9.2 µg/m³
  • PM10: 11.35 µg/m³
  • O3: 0.038 ppm
  • NO2: 3.7 ppb
  • SO2: 0.8 ppb
  • CO: 0.12 ppm

Health Recommendations:

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

4 AM
38 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 9.2 µg/m³
  • PM10: 11.4 µg/m³
  • O3: 0.035 ppm
  • NO2: 3.9 ppb
  • SO2: 0.8 ppb
  • CO: 0.12 ppm

Health Recommendations:

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

5 AM
39 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 9.28 µg/m³
  • PM10: 11.55 µg/m³
  • O3: 0.032 ppm
  • NO2: 4.3 ppb
  • SO2: 0.9 ppb
  • CO: 0.13 ppm

Health Recommendations:

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

6 AM
39 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 9.4 µg/m³
  • PM10: 11.76 µg/m³
  • O3: 0.029 ppm
  • NO2: 5.1 ppb
  • SO2: 1 ppb
  • CO: 0.13 ppm

Health Recommendations:

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

7 AM
40 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 9.59 µg/m³
  • PM10: 12.13 µg/m³
  • O3: 0.026 ppm
  • NO2: 6.2 ppb
  • SO2: 1.2 ppb
  • CO: 0.14 ppm

Health Recommendations:

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

8 AM
41 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 9.86 µg/m³
  • PM10: 12.55 µg/m³
  • O3: 0.026 ppm
  • NO2: 6.6 ppb
  • SO2: 1.5 ppb
  • CO: 0.15 ppm

Health Recommendations:

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

9 AM
42 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 10.12 µg/m³
  • PM10: 12.8 µg/m³
  • O3: 0.030 ppm
  • NO2: 6.9 ppb
  • SO2: 1.9 ppb
  • CO: 0.15 ppm

Health Recommendations:

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

10 AM
46 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 11.07 µg/m³
  • PM10: 13.81 µg/m³
  • O3: 0.037 ppm
  • NO2: 7.1 ppb
  • SO2: 2 ppb
  • CO: 0.16 ppm

Health Recommendations:

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

11 AM
54 AQI
Moderate air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 13.72 µg/m³
  • PM10: 16.54 µg/m³
  • O3: 0.049 ppm
  • NO2: 6.6 ppb
  • SO2: 2.2 ppb
  • CO: 0.17 ppm

Health Recommendations:

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

12 PM
67 AQI
Moderate air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 12.88 µg/m³
  • PM10: 14.79 µg/m³
  • O3: 0.059 ppm
  • NO2: 2.6 ppb
  • SO2: 1 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.

1 PM
74 AQI
Moderate air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 12.31 µg/m³
  • PM10: 14.16 µg/m³
  • O3: 0.062 ppm
  • NO2: 1.5 ppb
  • SO2: 0.7 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.

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

Pollutant Concentrations:

  • PM2.5: 11.49 µg/m³
  • PM10: 13.55 µg/m³
  • O3: 0.062 ppm
  • NO2: 1.2 ppb
  • SO2: 0.6 ppb
  • CO: 0.12 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 10.31 µg/m³
  • PM10: 12.67 µg/m³
  • O3: 0.061 ppm
  • NO2: 1.3 ppb
  • SO2: 0.6 ppb
  • CO: 0.11 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 9.07 µg/m³
  • PM10: 11.82 µg/m³
  • O3: 0.058 ppm
  • NO2: 1.6 ppb
  • SO2: 0.6 ppb
  • CO: 0.11 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 7.79 µg/m³
  • PM10: 10.67 µg/m³
  • O3: 0.055 ppm
  • NO2: 1.8 ppb
  • SO2: 0.5 ppb
  • CO: 0.11 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 6.24 µg/m³
  • PM10: 8.88 µg/m³
  • O3: 0.050 ppm
  • NO2: 2.1 ppb
  • SO2: 0.5 ppb
  • CO: 0.10 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 5.24 µg/m³
  • PM10: 7.96 µg/m³
  • O3: 0.046 ppm
  • NO2: 2.4 ppb
  • SO2: 0.5 ppb
  • CO: 0.10 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 4.5 µg/m³
  • PM10: 7.3 µg/m³
  • O3: 0.043 ppm
  • NO2: 2.5 ppb
  • SO2: 0.5 ppb
  • CO: 0.10 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 4.03 µg/m³
  • PM10: 6.89 µg/m³
  • O3: 0.040 ppm
  • NO2: 2.4 ppb
  • SO2: 0.5 ppb
  • CO: 0.10 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 3.81 µg/m³
  • PM10: 6.84 µg/m³
  • O3: 0.038 ppm
  • NO2: 2.4 ppb
  • SO2: 0.5 ppb
  • CO: 0.09 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 3.71 µg/m³
  • PM10: 6.89 µg/m³
  • O3: 0.037 ppm
  • NO2: 2.4 ppb
  • SO2: 0.6 ppb
  • CO: 0.09 ppm

Health Recommendations:

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

Weather Alerts and Warnings for Meriden

Air Quality Alert

Air Quality Alert issued June 29 at 3:03PM EDT by NWS Upton NY
Jun 29, 3:03 PM Jun 30, 11:00 PM
The Connecticut Department of Energy and Environmental Protection
has issued an Air Quality Action Day for the following counties:

Fairfield, New Haven, and Middlesex.

from 11 AM to 11 PM EDT Tuesday.

An Air Quality Action Day means that Ground Level Ozone within the
region may approach or exceed unhealthy standards. For additional
information, please visit the Connecticut Department of Energy and
Environmental Protection Web site at http://www.ct.gov/deep/aqi
Updated: Jun 29, 10:33 PM Source: NWS Alert