Hourly Weather | Today Tuesday, November 4, 2025
Waterbury, Connecticut
10 AM
Cloudy Weather
52°
Feels Like 45°
18
Humidity: 54%
Wind: 18 mph
UV Index: 2
11 AM
Cloudy Weather
54°
Feels Like 46°
14
Humidity: 45%
Wind: 20 mph
UV Index: 3
12 PM
Cloudy Weather
55°
Feels Like 48°
9
Humidity: 42%
Wind: 21 mph
UV Index: 3
1 PM
Cloudy Weather
55°
Feels Like 48°
0
Humidity: 40%
Wind: 21 mph
UV Index: 3
2 PM
Cloudy Weather
55°
Feels Like 50°
0
Humidity: 39%
Wind: 20 mph
UV Index: 2
3 PM
Cloudy Weather
54°
Feels Like 46°
0
Humidity: 41%
Wind: 18 mph
UV Index: 2
4 PM
Cloudy Weather
54°
Feels Like 45°
0
Humidity: 44%
Wind: 17 mph
UV Index: 1
5 PM
Cloudy Night
50°
Feels Like 41°
0
Humidity: 49%
Wind: 15 mph
UV Index: 0
6 PM
Cloudy Night
48°
Feels Like 39°
0
Humidity: 52%
Wind: 14 mph
UV Index: 0
7 PM
Cloudy Night
46°
Feels Like 45°
0
Humidity: 55%
Wind: 6 mph
UV Index: 0
8 PM
Cloudy Night
45°
Feels Like 43°
0
Humidity: 57%
Wind: 6 mph
UV Index: 0
9 PM
Cloudy Night
45°
Feels Like 43°
0
Humidity: 59%
Wind: 6 mph
UV Index: 0
10 PM
Cloudy Night
43°
Feels Like 41°
0
Humidity: 61%
Wind: 5 mph
UV Index: 0
11 PM
Cloudy Night
43°
Feels Like 41°
0
Humidity: 62%
Wind: 5 mph
UV Index: 0

Hourly Air Quality Forecast - AQI (US EPA)

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

Pollutant Concentrations:

  • PM2.5: 1.24 µg/m³
  • PM10: 2.65 µg/m³
  • O3: 0.039 ppm
  • NO2: 4.3 ppb
  • SO2: 0.8 ppb
  • CO: 0.12 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 1.29 µg/m³
  • PM10: 2.56 µg/m³
  • O3: 0.041 ppm
  • NO2: 3.6 ppb
  • SO2: 0.8 ppb
  • CO: 0.12 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 1.44 µg/m³
  • PM10: 2.58 µg/m³
  • O3: 0.042 ppm
  • NO2: 3.1 ppb
  • SO2: 0.8 ppb
  • CO: 0.12 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 1.64 µg/m³
  • PM10: 2.69 µg/m³
  • O3: 0.043 ppm
  • NO2: 2.8 ppb
  • SO2: 0.7 ppb
  • CO: 0.11 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 1.82 µg/m³
  • PM10: 2.85 µg/m³
  • O3: 0.045 ppm
  • NO2: 2.9 ppb
  • SO2: 0.8 ppb
  • CO: 0.11 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 2 µg/m³
  • PM10: 3.13 µg/m³
  • O3: 0.045 ppm
  • NO2: 3.5 ppb
  • SO2: 0.9 ppb
  • CO: 0.11 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 2.09 µg/m³
  • PM10: 3.37 µg/m³
  • O3: 0.044 ppm
  • NO2: 4.7 ppb
  • SO2: 0.9 ppb
  • CO: 0.12 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: 2.25 µg/m³
  • PM10: 3.76 µg/m³
  • O3: 0.042 ppm
  • NO2: 6.5 ppb
  • SO2: 1.1 ppb
  • CO: 0.13 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 2.59 µg/m³
  • PM10: 4.44 µg/m³
  • O3: 0.040 ppm
  • NO2: 8.2 ppb
  • SO2: 1.2 ppb
  • CO: 0.14 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 3.09 µg/m³
  • PM10: 5.37 µg/m³
  • O3: 0.038 ppm
  • NO2: 9.9 ppb
  • SO2: 1.2 ppb
  • CO: 0.15 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: 3.93 µg/m³
  • PM10: 6.96 µg/m³
  • O3: 0.034 ppm
  • NO2: 12.5 ppb
  • SO2: 1.4 ppb
  • CO: 0.17 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 4.87 µg/m³
  • PM10: 8.63 µg/m³
  • O3: 0.030 ppm
  • NO2: 14.9 ppb
  • SO2: 1.7 ppb
  • CO: 0.19 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 5.6 µg/m³
  • PM10: 9.83 µg/m³
  • O3: 0.027 ppm
  • NO2: 16.2 ppb
  • SO2: 1.7 ppb
  • CO: 0.21 ppm

Health Recommendations:

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

11 PM
26 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 6.22 µg/m³
  • PM10: 10.63 µg/m³
  • O3: 0.025 ppm
  • NO2: 16.6 ppb
  • SO2: 1.8 ppb
  • CO: 0.21 ppm

Health Recommendations:

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