Hourly Weather | Today Wednesday, October 15, 2025
Waterbury, Connecticut
4 AM
Cloudy Night
55°
Feels Like 54°
0
Humidity: 90%
Wind: 6 mph
UV Index: 0
5 AM
Cloudy Night
54°
Feels Like 52°
0
Humidity: 89%
Wind: 6 mph
UV Index: 0
6 AM
Cloudy Night
52°
Feels Like 52°
0
Humidity: 86%
Wind: 6 mph
UV Index: 0
7 AM
Cloudy Night
50°
Feels Like 48°
0
Humidity: 91%
Wind: 6 mph
UV Index: 0
8 AM
Cloudy Weather
54°
Feels Like 48°
0
Humidity: 84%
Wind: 9 mph
UV Index: 4
9 AM
Cloudy Weather
55°
Feels Like 52°
0
Humidity: 77%
Wind: 10 mph
UV Index: 12
10 AM
Cloudy Weather
57°
Feels Like 55°
0
Humidity: 71%
Wind: 14 mph
UV Index: 20
11 AM
Cloudy Weather
61°
Feels Like 57°
0
Humidity: 65%
Wind: 15 mph
UV Index: 27
12 PM
Cloudy Weather
61°
Feels Like 59°
0
Humidity: 61%
Wind: 16 mph
UV Index: 34
1 PM
Cloudy Weather
63°
Feels Like 61°
0
Humidity: 54%
Wind: 16 mph
UV Index: 36
2 PM
Cloudy Weather
61°
Feels Like 57°
0
Humidity: 53%
Wind: 16 mph
UV Index: 34
3 PM
Cloudy Weather
61°
Feels Like 57°
0
Humidity: 51%
Wind: 16 mph
UV Index: 27
4 PM
Cloudy Weather
59°
Feels Like 55°
0
Humidity: 51%
Wind: 15 mph
UV Index: 20
5 PM
Cloudy Weather
55°
Feels Like 52°
0
Humidity: 54%
Wind: 15 mph
UV Index: 12
6 PM
Cloudy Weather
54°
Feels Like 46°
0
Humidity: 56%
Wind: 14 mph
UV Index: 4
7 PM
Cloudy Night
52°
Feels Like 45°
0
Humidity: 59%
Wind: 12 mph
UV Index: 0
8 PM
Cloudy Night
48°
Feels Like 45°
0
Humidity: 63%
Wind: 7 mph
UV Index: 0
9 PM
Cloudy Night
48°
Feels Like 45°
0
Humidity: 64%
Wind: 7 mph
UV Index: 0
10 PM
Cloudy Night
46°
Feels Like 43°
0
Humidity: 66%
Wind: 7 mph
UV Index: 0
11 PM
Night
45°
Feels Like 43°
0
Humidity: 66%
Wind: 7 mph
UV Index: 0

Hourly Air Quality Forecast - AQI (US EPA)

4 AM
26 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 1.61 µg/m³
  • PM10: 3.33 µg/m³
  • O3: 0.028 ppm
  • NO2: 6.8 ppb
  • SO2: 1.4 ppb
  • CO: 0.12 ppm

Health Recommendations:

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

5 AM
25 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 1.65 µg/m³
  • PM10: 3.37 µg/m³
  • O3: 0.027 ppm
  • NO2: 7.1 ppb
  • SO2: 1.5 ppb
  • CO: 0.12 ppm

Health Recommendations:

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

6 AM
25 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 1.68 µg/m³
  • PM10: 3.42 µg/m³
  • O3: 0.027 ppm
  • NO2: 7.4 ppb
  • SO2: 1.7 ppb
  • CO: 0.12 ppm

Health Recommendations:

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

7 AM
26 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 1.79 µg/m³
  • PM10: 3.83 µg/m³
  • O3: 0.028 ppm
  • NO2: 8.3 ppb
  • SO2: 1.8 ppb
  • CO: 0.12 ppm

Health Recommendations:

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

8 AM
26 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 2.06 µg/m³
  • PM10: 4.63 µg/m³
  • O3: 0.028 ppm
  • NO2: 10.2 ppb
  • SO2: 1.9 ppb
  • CO: 0.13 ppm

Health Recommendations:

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

9 AM
27 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 2.46 µg/m³
  • PM10: 5.51 µg/m³
  • O3: 0.029 ppm
  • NO2: 11.2 ppb
  • SO2: 2.1 ppb
  • CO: 0.15 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 2.96 µg/m³
  • PM10: 6.32 µg/m³
  • O3: 0.031 ppm
  • NO2: 11 ppb
  • SO2: 2.2 ppb
  • CO: 0.16 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 3.56 µg/m³
  • PM10: 6.94 µg/m³
  • O3: 0.032 ppm
  • NO2: 10.3 ppb
  • SO2: 2.2 ppb
  • CO: 0.16 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 4.04 µg/m³
  • PM10: 7.07 µg/m³
  • O3: 0.034 ppm
  • NO2: 9.8 ppb
  • SO2: 2 ppb
  • CO: 0.16 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 4.36 µg/m³
  • PM10: 7.02 µg/m³
  • O3: 0.035 ppm
  • NO2: 8.4 ppb
  • SO2: 1.8 ppb
  • CO: 0.16 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 4.6 µg/m³
  • PM10: 6.96 µg/m³
  • O3: 0.034 ppm
  • NO2: 7.5 ppb
  • SO2: 1.6 ppb
  • CO: 0.15 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 4.54 µg/m³
  • PM10: 6.52 µg/m³
  • O3: 0.035 ppm
  • NO2: 6.3 ppb
  • SO2: 1.4 ppb
  • CO: 0.15 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 4.04 µg/m³
  • PM10: 5.69 µg/m³
  • O3: 0.035 ppm
  • NO2: 5.5 ppb
  • SO2: 1.2 ppb
  • CO: 0.14 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 3.29 µg/m³
  • PM10: 4.75 µg/m³
  • O3: 0.033 ppm
  • NO2: 5.6 ppb
  • SO2: 1.2 ppb
  • CO: 0.13 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 2.5 µg/m³
  • PM10: 3.86 µg/m³
  • O3: 0.030 ppm
  • NO2: 6.4 ppb
  • SO2: 1.1 ppb
  • CO: 0.13 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 1.89 µg/m³
  • PM10: 3.29 µg/m³
  • O3: 0.027 ppm
  • NO2: 6.7 ppb
  • SO2: 1.1 ppb
  • CO: 0.13 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 1.44 µg/m³
  • PM10: 2.92 µg/m³
  • O3: 0.025 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.

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

Pollutant Concentrations:

  • PM2.5: 1.09 µg/m³
  • PM10: 2.58 µg/m³
  • O3: 0.024 ppm
  • NO2: 6 ppb
  • SO2: 1 ppb
  • CO: 0.12 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 0.87 µg/m³
  • PM10: 2.32 µg/m³
  • O3: 0.024 ppm
  • NO2: 5.6 ppb
  • SO2: 1 ppb
  • CO: 0.12 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 0.75 µg/m³
  • PM10: 2.1 µg/m³
  • O3: 0.024 ppm
  • NO2: 5.4 ppb
  • SO2: 1 ppb
  • CO: 0.12 ppm

Health Recommendations:

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