Hourly Weather | Today › Friday, October 2, 2026
Boston, Massachusetts
11 PM
Cloudy Night
54°
Feels Like 54°
0
Humidity: 90%
UV Index: 0
Wind: 5 mph

Hourly Air Quality Forecast - AQI (US EPA)

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

Pollutant Concentrations:

  • PM2.5: 14.61 µg/m³
  • PM10: 16 µg/m³
  • O3: 0.032 ppm
  • NO2: 4.2 ppb
  • SO2: 0.4 ppb
  • CO: 0.17 ppm

Health Recommendations:

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