Hourly Weather | Today Tuesday, June 9, 2026
Somerville, Massachusetts
10 PM
Cloudy Night
73°
Feels Like 70°
0
Humidity: 47%
UV Index: 0
Wind: 10 mph
11 PM
Cloudy Night
70°
Feels Like 66°
0
Humidity: 50%
UV Index: 0
Wind: 9 mph

Hourly Air Quality Forecast - AQI (US EPA)

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

Pollutant Concentrations:

  • PM2.5: 1.93 µg/m³
  • PM10: 5.47 µg/m³
  • O3: 0.041 ppm
  • NO2: 0.9 ppb
  • SO2: 0.2 ppb
  • CO: 0.09 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 2.07 µg/m³
  • PM10: 6.29 µg/m³
  • O3: 0.040 ppm
  • NO2: 0.9 ppb
  • SO2: 0.2 ppb
  • CO: 0.09 ppm

Health Recommendations:

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