Hourly Weather | Today Tuesday, April 7, 2026
Hartford, Connecticut
10 AM
Cloudy Weather
45°
Feels Like 43°
34
Humidity: 60%
UV Index: 2
Wind: 9 mph
11 AM
Cloudy Weather
48°
Feels Like 43°
33
Humidity: 53%
UV Index: 3
Wind: 14 mph
12 PM
Cloudy Weather
50°
Feels Like 46°
33
Humidity: 46%
UV Index: 3
Wind: 15 mph
1 PM
Cloudy Weather
48°
Feels Like 43°
33
Humidity: 45%
UV Index: 4
Wind: 17 mph
2 PM
Cloudy Weather
48°
Feels Like 45°
38
Humidity: 40%
UV Index: 3
Wind: 16 mph
3 PM
Rainy Weather
48°
Feels Like 39°
42
Humidity: 36%
UV Index: 2
Wind: 17 mph
4 PM
Cloudy Weather
46°
Feels Like 39°
38
Humidity: 34%
UV Index: 3
Wind: 17 mph
5 PM
Cloudy Weather
45°
Feels Like 36°
34
Humidity: 34%
UV Index: 2
Wind: 18 mph
6 PM
Cloudy Weather
45°
Feels Like 36°
34
Humidity: 34%
UV Index: 1
Wind: 16 mph
7 PM
Cloudy Weather
43°
Feels Like 32°
22
Humidity: 39%
UV Index: 0
Wind: 14 mph
8 PM
Cloudy Night
39°
Feels Like 27°
0
Humidity: 47%
UV Index: 0
Wind: 16 mph
9 PM
Cloudy Night
37°
Feels Like 25°
0
Humidity: 49%
UV Index: 0
Wind: 15 mph
10 PM
Cloudy Night
36°
Feels Like 23°
0
Humidity: 51%
UV Index: 0
Wind: 14 mph
11 PM
Cloudy Night
34°
Feels Like 23°
0
Humidity: 52%
UV Index: 0
Wind: 13 mph

Hourly Air Quality Forecast - AQI (US EPA)

10 AM
47 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 2.49 µg/m³
  • PM10: 4.23 µg/m³
  • O3: 0.051 ppm
  • NO2: 4.2 ppb
  • SO2: 1 ppb
  • CO: 0.16 ppm

Health Recommendations:

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

11 AM
49 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 1.76 µg/m³
  • PM10: 3.14 µg/m³
  • O3: 0.053 ppm
  • NO2: 3.2 ppb
  • SO2: 0.8 ppb
  • CO: 0.15 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 1.7 µg/m³
  • PM10: 2.86 µg/m³
  • O3: 0.055 ppm
  • NO2: 2.5 ppb
  • SO2: 0.7 ppb
  • CO: 0.15 ppm

Health Recommendations:

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

1 PM
58 AQI
Moderate air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 1.85 µg/m³
  • PM10: 2.9 µg/m³
  • O3: 0.057 ppm
  • NO2: 2.1 ppb
  • SO2: 0.7 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
60 AQI
Moderate air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 1.8 µg/m³
  • PM10: 2.76 µg/m³
  • O3: 0.057 ppm
  • NO2: 1.9 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.

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

Pollutant Concentrations:

  • PM2.5: 1.57 µg/m³
  • PM10: 2.42 µg/m³
  • O3: 0.057 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.

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

Pollutant Concentrations:

  • PM2.5: 1.43 µg/m³
  • PM10: 2.22 µg/m³
  • O3: 0.058 ppm
  • NO2: 1.8 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.

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

Pollutant Concentrations:

  • PM2.5: 1.27 µg/m³
  • PM10: 2.04 µg/m³
  • O3: 0.058 ppm
  • NO2: 2 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.

6 PM
57 AQI
Moderate air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 1.1 µg/m³
  • PM10: 1.98 µg/m³
  • O3: 0.056 ppm
  • NO2: 2.6 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.

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

Pollutant Concentrations:

  • PM2.5: 1 µg/m³
  • PM10: 2.16 µg/m³
  • O3: 0.053 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.

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

Pollutant Concentrations:

  • PM2.5: 0.93 µg/m³
  • PM10: 2.32 µg/m³
  • O3: 0.051 ppm
  • NO2: 4.1 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
45 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 0.88 µg/m³
  • PM10: 2.37 µg/m³
  • O3: 0.049 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.

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

Pollutant Concentrations:

  • PM2.5: 0.88 µg/m³
  • PM10: 2.44 µg/m³
  • O3: 0.049 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.

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

Pollutant Concentrations:

  • PM2.5: 0.84 µg/m³
  • PM10: 2.42 µg/m³
  • O3: 0.049 ppm
  • NO2: 3.5 ppb
  • SO2: 0.6 ppb
  • CO: 0.15 ppm

Health Recommendations:

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