Hourly Weather | Today › Monday, November 2, 2026
Danbury, Connecticut
1 AM
Cloudy Night
46°
Feels Like 46°
0
Humidity: 84%
UV Index: 0
Wind: 4 mph
2 AM
Cloudy Night
45°
Feels Like 46°
0
Humidity: 86%
UV Index: 0
Wind: 4 mph
3 AM
Cloudy Night
45°
Feels Like 45°
0
Humidity: 90%
UV Index: 0
Wind: 4 mph
4 AM
Cloudy Night
45°
Feels Like 45°
0
Humidity: 90%
UV Index: 0
Wind: 2 mph
5 AM
Cloudy Night
43°
Feels Like 45°
0
Humidity: 91%
UV Index: 0
Wind: 2 mph
6 AM
Cloudy Night
43°
Feels Like 43°
0
Humidity: 95%
UV Index: 0
Wind: 2 mph
7 AM
Cloudy Weather
45°
Feels Like 45°
0
Humidity: 87%
UV Index: 0
Wind: 2 mph
8 AM
Cloudy Weather
48°
Feels Like 52°
0
Humidity: 76%
UV Index: 1
Wind: 4 mph
9 AM
Cloudy Weather
55°
Feels Like 57°
0
Humidity: 63%
UV Index: 2
Wind: 5 mph
10 AM
Cloudy Weather
61°
Feels Like 64°
0
Humidity: 54%
UV Index: 2
Wind: 5 mph
11 AM
Cloudy Weather
63°
Feels Like 66°
0
Humidity: 48%
UV Index: 3
Wind: 6 mph
12 PM
Cloudy Weather
66°
Feels Like 68°
0
Humidity: 42%
UV Index: 3
Wind: 7 mph
1 PM
Cloudy Weather
68°
Feels Like 70°
0
Humidity: 38%
UV Index: 2
Wind: 8 mph
2 PM
Cloudy Weather
70°
Feels Like 70°
0
Humidity: 37%
UV Index: 2
Wind: 7 mph
3 PM
Cloudy Weather
68°
Feels Like 68°
0
Humidity: 40%
UV Index: 2
Wind: 7 mph
4 PM
Cloudy Weather
64°
Feels Like 64°
0
Humidity: 44%
UV Index: 1
Wind: 6 mph
5 PM
Cloudy Night
63°
Feels Like 61°
0
Humidity: 51%
UV Index: 0
Wind: 6 mph
6 PM
Cloudy Night
59°
Feels Like 57°
0
Humidity: 59%
UV Index: 0
Wind: 6 mph
7 PM
Cloudy Night
55°
Feels Like 55°
0
Humidity: 68%
UV Index: 0
Wind: 5 mph
8 PM
Night
54°
Feels Like 54°
0
Humidity: 78%
UV Index: 0
Wind: 5 mph
9 PM
Night
52°
Feels Like 52°
0
Humidity: 87%
UV Index: 0
Wind: 5 mph
10 PM
Night
52°
Feels Like 52°
0
Humidity: 89%
UV Index: 0
Wind: 4 mph
11 PM
Night
52°
Feels Like 52°
0
Humidity: 90%
UV Index: 0
Wind: 4 mph

Hourly Air Quality Forecast - AQI (US EPA)

1 AM
47 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 11.33 µg/m³
  • PM10: 15.88 µg/m³
  • O3: 0.018 ppm
  • NO2: 16.9 ppb
  • SO2: 0.6 ppb
  • CO: 0.28 ppm

Health Recommendations:

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

2 AM
50 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 11.92 µg/m³
  • PM10: 16.66 µg/m³
  • O3: 0.016 ppm
  • NO2: 17.5 ppb
  • SO2: 0.6 ppb
  • CO: 0.29 ppm

Health Recommendations:

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

3 AM
51 AQI
Moderate air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 12.59 µg/m³
  • PM10: 17.49 µg/m³
  • O3: 0.015 ppm
  • NO2: 18.2 ppb
  • SO2: 0.7 ppb
  • CO: 0.29 ppm

Health Recommendations:

Air quality is acceptable; some pollutants may pose a risk for a small number of unusually sensitive people.

4 AM
52 AQI
Moderate air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 13.08 µg/m³
  • PM10: 18.11 µg/m³
  • O3: 0.013 ppm
  • NO2: 18.6 ppb
  • SO2: 0.8 ppb
  • CO: 0.30 ppm

Health Recommendations:

Air quality is acceptable; some pollutants may pose a risk for a small number of unusually sensitive people.

5 AM
53 AQI
Moderate air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 13.62 µg/m³
  • PM10: 18.76 µg/m³
  • O3: 0.012 ppm
  • NO2: 18.9 ppb
  • SO2: 0.9 ppb
  • CO: 0.30 ppm

Health Recommendations:

Air quality is acceptable; some pollutants may pose a risk for a small number of unusually sensitive people.

6 AM
55 AQI
Moderate air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 14.17 µg/m³
  • PM10: 19.41 µg/m³
  • O3: 0.011 ppm
  • NO2: 19.3 ppb
  • SO2: 0.9 ppb
  • CO: 0.31 ppm

Health Recommendations:

Air quality is acceptable; some pollutants may pose a risk for a small number of unusually sensitive people.

7 AM
57 AQI
Moderate air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 15.17 µg/m³
  • PM10: 20.77 µg/m³
  • O3: 0.009 ppm
  • NO2: 20.9 ppb
  • SO2: 0.9 ppb
  • CO: 0.32 ppm

Health Recommendations:

Air quality is acceptable; some pollutants may pose a risk for a small number of unusually sensitive people.

8 AM
59 AQI
Moderate air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 16.06 µg/m³
  • PM10: 22.1 µg/m³
  • O3: 0.009 ppm
  • NO2: 21.1 ppb
  • SO2: 1 ppb
  • CO: 0.34 ppm

Health Recommendations:

Air quality is acceptable; some pollutants may pose a risk for a small number of unusually sensitive people.

9 AM
59 AQI
Moderate air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 16.33 µg/m³
  • PM10: 22.63 µg/m³
  • O3: 0.013 ppm
  • NO2: 18.1 ppb
  • SO2: 1.1 ppb
  • CO: 0.36 ppm

Health Recommendations:

Air quality is acceptable; some pollutants may pose a risk for a small number of unusually sensitive people.

10 AM
59 AQI
Moderate air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 16.28 µg/m³
  • PM10: 22.63 µg/m³
  • O3: 0.016 ppm
  • NO2: 16.3 ppb
  • SO2: 1.4 ppb
  • CO: 0.36 ppm

Health Recommendations:

Air quality is acceptable; some pollutants may pose a risk for a small number of unusually sensitive people.

11 AM
52 AQI
Moderate air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 12.91 µg/m³
  • PM10: 17.84 µg/m³
  • O3: 0.030 ppm
  • NO2: 12.7 ppb
  • SO2: 2.5 ppb
  • CO: 0.27 ppm

Health Recommendations:

Air quality is acceptable; some pollutants may pose a risk for a small number of unusually sensitive people.

12 PM
50 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 12.14 µg/m³
  • PM10: 16.62 µg/m³
  • O3: 0.036 ppm
  • NO2: 11 ppb
  • SO2: 2.4 ppb
  • CO: 0.24 ppm

Health Recommendations:

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

1 PM
50 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 11.97 µg/m³
  • PM10: 16.07 µg/m³
  • O3: 0.040 ppm
  • NO2: 9.7 ppb
  • SO2: 2.2 ppb
  • CO: 0.23 ppm

Health Recommendations:

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

2 PM
43 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 10.42 µg/m³
  • PM10: 13.75 µg/m³
  • O3: 0.046 ppm
  • NO2: 7.2 ppb
  • SO2: 1.7 ppb
  • CO: 0.20 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 9.91 µg/m³
  • PM10: 12.98 µg/m³
  • O3: 0.048 ppm
  • NO2: 6.4 ppb
  • SO2: 1.5 ppb
  • CO: 0.19 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 9.51 µg/m³
  • PM10: 12.45 µg/m³
  • O3: 0.047 ppm
  • NO2: 6.7 ppb
  • SO2: 1.3 ppb
  • CO: 0.18 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 9.2 µg/m³
  • PM10: 12.11 µg/m³
  • O3: 0.044 ppm
  • NO2: 7.5 ppb
  • SO2: 1.2 ppb
  • CO: 0.19 ppm

Health Recommendations:

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

6 PM
38 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 9.23 µg/m³
  • PM10: 12.2 µg/m³
  • O3: 0.041 ppm
  • NO2: 8.5 ppb
  • SO2: 1.1 ppb
  • CO: 0.20 ppm

Health Recommendations:

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

7 PM
38 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 9.18 µg/m³
  • PM10: 12.22 µg/m³
  • O3: 0.037 ppm
  • NO2: 9.3 ppb
  • SO2: 0.9 ppb
  • CO: 0.21 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 8.69 µg/m³
  • PM10: 11.7 µg/m³
  • O3: 0.035 ppm
  • NO2: 9.1 ppb
  • SO2: 0.7 ppb
  • CO: 0.21 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 8.15 µg/m³
  • PM10: 11.13 µg/m³
  • O3: 0.034 ppm
  • NO2: 8.8 ppb
  • SO2: 0.6 ppb
  • CO: 0.21 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: 7.7 µg/m³
  • PM10: 10.68 µg/m³
  • O3: 0.033 ppm
  • NO2: 8.6 ppb
  • SO2: 0.5 ppb
  • CO: 0.21 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 7.21 µg/m³
  • PM10: 10.14 µg/m³
  • O3: 0.032 ppm
  • NO2: 8.5 ppb
  • SO2: 0.5 ppb
  • CO: 0.21 ppm

Health Recommendations:

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