Hourly Weather | Today Sunday, November 2, 2025
Hartford, Connecticut
8 AM
Cloudy Weather
41°
Feels Like 39°
0
Humidity: 74%
Wind: 6 mph
UV Index: 1
9 AM
Cloudy Weather
45°
Feels Like 43°
0
Humidity: 67%
Wind: 7 mph
UV Index: 2
10 AM
Cloudy Weather
48°
Feels Like 48°
0
Humidity: 58%
Wind: 8 mph
UV Index: 2
11 AM
Cloudy Weather
52°
Feels Like 52°
0
Humidity: 52%
Wind: 9 mph
UV Index: 3
12 PM
Cloudy Weather
54°
Feels Like 54°
0
Humidity: 49%
Wind: 9 mph
UV Index: 3
1 PM
Cloudy Weather
55°
Feels Like 55°
0
Humidity: 47%
Wind: 8 mph
UV Index: 3
2 PM
Cloudy Weather
57°
Feels Like 57°
0
Humidity: 45%
Wind: 8 mph
UV Index: 2
3 PM
Cloudy Weather
55°
Feels Like 55°
0
Humidity: 49%
Wind: 7 mph
UV Index: 2
4 PM
Cloudy Weather
54°
Feels Like 54°
0
Humidity: 53%
Wind: 6 mph
UV Index: 1
5 PM
Cloudy Night
52°
Feels Like 50°
0
Humidity: 62%
Wind: 5 mph
UV Index: 0
6 PM
Cloudy Night
48°
Feels Like 48°
0
Humidity: 70%
Wind: 4 mph
UV Index: 0
7 PM
Cloudy Night
45°
Feels Like 46°
0
Humidity: 79%
Wind: 4 mph
UV Index: 0
8 PM
Cloudy Night
43°
Feels Like 43°
0
Humidity: 87%
Wind: 4 mph
UV Index: 0
9 PM
Cloudy Night
43°
Feels Like 43°
0
Humidity: 89%
Wind: 4 mph
UV Index: 0
10 PM
Cloudy Night
43°
Feels Like 43°
0
Humidity: 89%
Wind: 4 mph
UV Index: 0
11 PM
Cloudy Night
41°
Feels Like 43°
0
Humidity: 90%
Wind: 4 mph
UV Index: 0

Hourly Air Quality Forecast - AQI (US EPA)

8 AM
35 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 8.37 µg/m³
  • PM10: 16.28 µg/m³
  • O3: 0.014 ppm
  • NO2: 13.6 ppb
  • SO2: 0.9 ppb
  • CO: 0.29 ppm

Health Recommendations:

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

9 AM
43 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 10.36 µg/m³
  • PM10: 19.52 µg/m³
  • O3: 0.016 ppm
  • NO2: 12.8 ppb
  • SO2: 1 ppb
  • CO: 0.34 ppm

Health Recommendations:

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

10 AM
49 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 11.82 µg/m³
  • PM10: 21.24 µg/m³
  • O3: 0.018 ppm
  • NO2: 13.3 ppb
  • SO2: 1.5 ppb
  • CO: 0.35 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: 4.64 µg/m³
  • PM10: 8.4 µg/m³
  • O3: 0.032 ppm
  • NO2: 7.7 ppb
  • SO2: 1.8 ppb
  • CO: 0.17 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 4.68 µg/m³
  • PM10: 7.92 µg/m³
  • O3: 0.036 ppm
  • NO2: 7 ppb
  • SO2: 1.7 ppb
  • CO: 0.16 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 5.25 µg/m³
  • PM10: 8.49 µg/m³
  • O3: 0.038 ppm
  • NO2: 7.3 ppb
  • SO2: 1.7 ppb
  • CO: 0.16 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 5.91 µg/m³
  • PM10: 9.33 µg/m³
  • O3: 0.039 ppm
  • NO2: 7.9 ppb
  • SO2: 1.7 ppb
  • CO: 0.16 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 6.82 µg/m³
  • PM10: 10.67 µg/m³
  • O3: 0.039 ppm
  • NO2: 9.3 ppb
  • SO2: 1.8 ppb
  • CO: 0.17 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 7.18 µg/m³
  • PM10: 11.29 µg/m³
  • O3: 0.038 ppm
  • NO2: 11.1 ppb
  • SO2: 1.7 ppb
  • CO: 0.17 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 7.13 µg/m³
  • PM10: 11.5 µg/m³
  • O3: 0.035 ppm
  • NO2: 13.2 ppb
  • SO2: 1.5 ppb
  • CO: 0.18 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 7.43 µg/m³
  • PM10: 12.15 µg/m³
  • O3: 0.033 ppm
  • NO2: 14.9 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
35 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 8.31 µg/m³
  • PM10: 13.45 µg/m³
  • O3: 0.031 ppm
  • NO2: 16.1 ppb
  • SO2: 1.1 ppb
  • CO: 0.21 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 9.68 µg/m³
  • PM10: 15.55 µg/m³
  • O3: 0.029 ppm
  • NO2: 17.1 ppb
  • SO2: 0.9 ppb
  • CO: 0.23 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 11.48 µg/m³
  • PM10: 18.5 µg/m³
  • O3: 0.027 ppm
  • NO2: 18 ppb
  • SO2: 0.8 ppb
  • CO: 0.26 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 13.5 µg/m³
  • PM10: 21.81 µg/m³
  • O3: 0.025 ppm
  • NO2: 19.3 ppb
  • SO2: 0.8 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.

11 PM
56 AQI
Moderate air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 14.9 µg/m³
  • PM10: 23.88 µg/m³
  • O3: 0.024 ppm
  • NO2: 20.6 ppb
  • SO2: 0.8 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.