Hourly Weather | Today Wednesday, December 24, 2025
Waterbury, Connecticut
2 PM
Sunny Weather
39°
Feels Like 30°
0
Humidity: 49%
Wind: 16 mph
UV Index: 2
3 PM
Sunny Weather
39°
Feels Like 28°
0
Humidity: 50%
Wind: 15 mph
UV Index: 1
4 PM
Cloudy Weather
37°
Feels Like 27°
0
Humidity: 53%
Wind: 13 mph
UV Index: 0
5 PM
Night
36°
Feels Like 25°
0
Humidity: 57%
Wind: 12 mph
UV Index: 0
6 PM
Night
34°
Feels Like 25°
0
Humidity: 61%
Wind: 9 mph
UV Index: 0
7 PM
Cloudy Night
32°
Feels Like 27°
0
Humidity: 64%
Wind: 7 mph
UV Index: 0
8 PM
Cloudy Night
28°
Feels Like 27°
0
Humidity: 71%
Wind: 6 mph
UV Index: 0
9 PM
Cloudy Night
27°
Feels Like 27°
0
Humidity: 75%
Wind: 5 mph
UV Index: 0
10 PM
Cloudy Night
27°
Feels Like 27°
0
Humidity: 76%
Wind: 4 mph
UV Index: 0
11 PM
Cloudy Night
27°
Feels Like 27°
0
Humidity: 77%
Wind: 4 mph
UV Index: 0

Hourly Air Quality Forecast - AQI (US EPA)

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

Pollutant Concentrations:

  • PM2.5: 1.22 µg/m³
  • PM10: 2.32 µg/m³
  • O3: 0.030 ppm
  • NO2: 4.2 ppb
  • SO2: 0.7 ppb
  • CO: 0.17 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 1.4 µg/m³
  • PM10: 2.63 µg/m³
  • O3: 0.030 ppm
  • NO2: 5.1 ppb
  • SO2: 0.8 ppb
  • CO: 0.17 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 1.56 µg/m³
  • PM10: 2.95 µg/m³
  • O3: 0.028 ppm
  • NO2: 6.7 ppb
  • SO2: 0.9 ppb
  • CO: 0.18 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 1.88 µg/m³
  • PM10: 3.55 µg/m³
  • O3: 0.025 ppm
  • NO2: 9 ppb
  • SO2: 1 ppb
  • CO: 0.19 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 2.52 µg/m³
  • PM10: 4.64 µg/m³
  • O3: 0.022 ppm
  • NO2: 11.5 ppb
  • SO2: 1.3 ppb
  • CO: 0.20 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 3.26 µg/m³
  • PM10: 5.87 µg/m³
  • O3: 0.019 ppm
  • NO2: 13.4 ppb
  • SO2: 1.4 ppb
  • CO: 0.22 ppm

Health Recommendations:

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

8 PM
19 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 4.56 µg/m³
  • PM10: 7.91 µg/m³
  • O3: 0.016 ppm
  • NO2: 15.7 ppb
  • SO2: 1.6 ppb
  • CO: 0.24 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 6.22 µg/m³
  • PM10: 10.57 µg/m³
  • O3: 0.013 ppm
  • NO2: 17.6 ppb
  • SO2: 1.8 ppb
  • CO: 0.26 ppm

Health Recommendations:

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

10 PM
32 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 7.77 µg/m³
  • PM10: 13.1 µg/m³
  • O3: 0.012 ppm
  • NO2: 18.2 ppb
  • SO2: 2 ppb
  • CO: 0.29 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 8.89 µg/m³
  • PM10: 14.93 µg/m³
  • O3: 0.011 ppm
  • NO2: 18.4 ppb
  • SO2: 2.1 ppb
  • CO: 0.30 ppm

Health Recommendations:

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