Hourly Weather | Today Tuesday, April 7, 2026
Danbury, Connecticut
12 PM
Cloudy Weather
52°
Feels Like 48°
32
Humidity: 34%
UV Index: 6
Wind: 15 mph
1 PM
Cloudy Weather
50°
Feels Like 48°
21
Humidity: 31%
UV Index: 6
Wind: 16 mph
2 PM
Cloudy Weather
48°
Feels Like 46°
0
Humidity: 29%
UV Index: 6
Wind: 15 mph
3 PM
Cloudy Weather
46°
Feels Like 43°
0
Humidity: 29%
UV Index: 5
Wind: 15 mph
4 PM
Cloudy Weather
45°
Feels Like 39°
0
Humidity: 30%
UV Index: 3
Wind: 15 mph
5 PM
Cloudy Weather
45°
Feels Like 36°
0
Humidity: 31%
UV Index: 2
Wind: 15 mph
6 PM
Cloudy Weather
43°
Feels Like 34°
0
Humidity: 33%
UV Index: 1
Wind: 15 mph
7 PM
Cloudy Weather
39°
Feels Like 30°
0
Humidity: 35%
UV Index: 0
Wind: 14 mph
8 PM
Cloudy Night
37°
Feels Like 25°
0
Humidity: 38%
UV Index: 0
Wind: 16 mph
9 PM
Night
36°
Feels Like 23°
0
Humidity: 42%
UV Index: 0
Wind: 14 mph
10 PM
Night
34°
Feels Like 23°
0
Humidity: 44%
UV Index: 0
Wind: 13 mph
11 PM
Night
34°
Feels Like 23°
0
Humidity: 47%
UV Index: 0
Wind: 12 mph

Hourly Air Quality Forecast - AQI (US EPA)

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

Pollutant Concentrations:

  • PM2.5: 1.45 µg/m³
  • PM10: 2.28 µg/m³
  • O3: 0.054 ppm
  • NO2: 1.8 ppb
  • SO2: 0.6 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
61 AQI
Moderate air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 1.78 µg/m³
  • PM10: 2.51 µg/m³
  • O3: 0.057 ppm
  • NO2: 1.5 ppb
  • SO2: 0.5 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.

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

Pollutant Concentrations:

  • PM2.5: 2.06 µg/m³
  • PM10: 2.73 µg/m³
  • O3: 0.060 ppm
  • NO2: 1.4 ppb
  • SO2: 0.5 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.

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

Pollutant Concentrations:

  • PM2.5: 1.87 µg/m³
  • PM10: 2.49 µg/m³
  • O3: 0.060 ppm
  • NO2: 1.3 ppb
  • SO2: 0.5 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.

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

Pollutant Concentrations:

  • PM2.5: 1.49 µg/m³
  • PM10: 2.1 µg/m³
  • O3: 0.059 ppm
  • NO2: 1.4 ppb
  • SO2: 0.5 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.

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

Pollutant Concentrations:

  • PM2.5: 1.11 µg/m³
  • PM10: 1.72 µg/m³
  • O3: 0.056 ppm
  • NO2: 1.8 ppb
  • SO2: 0.4 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.

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

Pollutant Concentrations:

  • PM2.5: 0.85 µg/m³
  • PM10: 1.52 µg/m³
  • O3: 0.053 ppm
  • NO2: 2.4 ppb
  • SO2: 0.5 ppb
  • CO: 0.14 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 0.8 µg/m³
  • PM10: 1.62 µg/m³
  • O3: 0.050 ppm
  • NO2: 3.3 ppb
  • SO2: 0.5 ppb
  • CO: 0.14 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 0.8 µg/m³
  • PM10: 1.76 µg/m³
  • O3: 0.048 ppm
  • NO2: 3.7 ppb
  • SO2: 0.6 ppb
  • CO: 0.15 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 0.79 µg/m³
  • PM10: 1.81 µg/m³
  • O3: 0.046 ppm
  • NO2: 3.6 ppb
  • SO2: 0.6 ppb
  • CO: 0.15 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 0.85 µg/m³
  • PM10: 1.96 µg/m³
  • O3: 0.045 ppm
  • NO2: 3.7 ppb
  • SO2: 0.6 ppb
  • CO: 0.15 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 0.88 µg/m³
  • PM10: 2.02 µg/m³
  • O3: 0.044 ppm
  • NO2: 3.7 ppb
  • SO2: 0.6 ppb
  • CO: 0.15 ppm

Health Recommendations:

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