Hourly Weather | Today › Friday, October 9, 2026
Hartford, Connecticut
8 PM
Cloudy Night
61°
Feels Like 59°
0
Humidity: 48%
UV Index: 0
Wind: 5 mph
9 PM
Cloudy Night
57°
Feels Like 55°
0
Humidity: 54%
UV Index: 0
Wind: 6 mph
10 PM
Cloudy Night
55°
Feels Like 54°
0
Humidity: 63%
UV Index: 0
Wind: 6 mph
11 PM
Cloudy Night
54°
Feels Like 52°
0
Humidity: 70%
UV Index: 0
Wind: 6 mph

Hourly Air Quality Forecast - AQI (US EPA)

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

Pollutant Concentrations:

  • PM2.5: 3.49 µg/m³
  • PM10: 7.11 µg/m³
  • O3: 0.036 ppm
  • NO2: 12.2 ppb
  • SO2: 1.8 ppb
  • CO: 0.19 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 3.26 µg/m³
  • PM10: 7.69 µg/m³
  • O3: 0.030 ppm
  • NO2: 13.8 ppb
  • SO2: 1.8 ppb
  • CO: 0.21 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 3.39 µg/m³
  • PM10: 8.91 µg/m³
  • O3: 0.024 ppm
  • NO2: 15.9 ppb
  • SO2: 1.8 ppb
  • CO: 0.23 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 3.62 µg/m³
  • PM10: 9.97 µg/m³
  • O3: 0.020 ppm
  • NO2: 17.9 ppb
  • SO2: 1.7 ppb
  • CO: 0.24 ppm

Health Recommendations:

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