Hourly Weather | Today Monday, April 27, 2026
West Haven, Connecticut
8 PM
Night
55°
Feels Like 54°
0
Humidity: 61%
UV Index: 0
Wind: 7 mph
9 PM
Night
52°
Feels Like 50°
0
Humidity: 69%
UV Index: 0
Wind: 6 mph
10 PM
Night
50°
Feels Like 50°
0
Humidity: 78%
UV Index: 0
Wind: 4 mph
11 PM
Night
46°
Feels Like 46°
0
Humidity: 86%
UV Index: 0
Wind: 4 mph

Hourly Air Quality Forecast - AQI (US EPA)

8 PM
77 AQI
Moderate air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 11.57 µg/m³
  • PM10: 13.26 µg/m³
  • O3: 0.063 ppm
  • NO2: 2.2 ppb
  • SO2: 0.4 ppb
  • CO: 0.16 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 8.46 µg/m³
  • PM10: 10.04 µg/m³
  • O3: 0.058 ppm
  • NO2: 1.7 ppb
  • SO2: 0.3 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.

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

Pollutant Concentrations:

  • PM2.5: 6.84 µg/m³
  • PM10: 8.41 µg/m³
  • O3: 0.054 ppm
  • NO2: 1.7 ppb
  • SO2: 0.3 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.

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

Pollutant Concentrations:

  • PM2.5: 6 µg/m³
  • PM10: 7.6 µg/m³
  • O3: 0.052 ppm
  • NO2: 1.8 ppb
  • SO2: 0.3 ppb
  • CO: 0.14 ppm

Health Recommendations:

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