Hourly Weather | Today Wednesday, December 24, 2025
Danbury, Connecticut
3 PM
Sunny Weather
45°
Feels Like 37°
44
Humidity: 39%
Wind: 14 mph
UV Index: 1
4 PM
Sunny Weather
43°
Feels Like 34°
17
Humidity: 40%
Wind: 13 mph
UV Index: 0
5 PM
Night
41°
Feels Like 34°
17
Humidity: 42%
Wind: 9 mph
UV Index: 0
6 PM
Night
37°
Feels Like 34°
11
Humidity: 44%
Wind: 7 mph
UV Index: 0
7 PM
Night
34°
Feels Like 30°
0
Humidity: 55%
Wind: 6 mph
UV Index: 0
8 PM
Cloudy Night
30°
Feels Like 28°
0
Humidity: 60%
Wind: 5 mph
UV Index: 0
9 PM
Cloudy Night
28°
Feels Like 28°
0
Humidity: 66%
Wind: 5 mph
UV Index: 0
10 PM
Cloudy Night
27°
Feels Like 27°
0
Humidity: 70%
Wind: 4 mph
UV Index: 0
11 PM
Cloudy Night
25°
Feels Like 25°
0
Humidity: 75%
Wind: 4 mph
UV Index: 0

Hourly Air Quality Forecast - AQI (US EPA)

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

Pollutant Concentrations:

  • PM2.5: 1.21 µg/m³
  • PM10: 2.5 µg/m³
  • O3: 0.031 ppm
  • NO2: 4.1 ppb
  • SO2: 0.6 ppb
  • CO: 0.16 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 1.37 µg/m³
  • PM10: 2.87 µg/m³
  • O3: 0.030 ppm
  • NO2: 5.5 ppb
  • SO2: 0.6 ppb
  • CO: 0.17 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 1.56 µg/m³
  • PM10: 3.33 µg/m³
  • O3: 0.027 ppm
  • NO2: 7.3 ppb
  • SO2: 0.7 ppb
  • CO: 0.17 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 1.96 µg/m³
  • PM10: 4.18 µg/m³
  • O3: 0.025 ppm
  • NO2: 9.4 ppb
  • SO2: 0.8 ppb
  • CO: 0.19 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 2.49 µg/m³
  • PM10: 5.2 µg/m³
  • O3: 0.022 ppm
  • NO2: 11.2 ppb
  • SO2: 0.9 ppb
  • CO: 0.20 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 3.7 µg/m³
  • PM10: 7.15 µg/m³
  • O3: 0.019 ppm
  • NO2: 13.9 ppb
  • SO2: 1.1 ppb
  • CO: 0.22 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: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 5.56 µg/m³
  • PM10: 10.03 µg/m³
  • O3: 0.015 ppm
  • NO2: 17.6 ppb
  • SO2: 1.2 ppb
  • CO: 0.25 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 7.45 µg/m³
  • PM10: 12.83 µg/m³
  • O3: 0.012 ppm
  • NO2: 20.5 ppb
  • SO2: 1.2 ppb
  • CO: 0.27 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: 8.85 µg/m³
  • PM10: 14.71 µg/m³
  • O3: 0.010 ppm
  • NO2: 21.9 ppb
  • SO2: 1.3 ppb
  • CO: 0.29 ppm

Health Recommendations:

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