Hourly Weather | Today Thursday, February 5, 2026
Worcester, Massachusetts
10 PM
Cloudy Night
14°
Feels Like
0
Humidity: 76%
UV Index: 0
Wind: 6 mph
11 PM
Cloudy Night
10°
Feels Like
0
Frost Risk: 100%
Humidity: 81%
UV Index: 0
Wind: 6 mph

Hourly Air Quality Forecast - AQI (US EPA)

10 PM
69 AQI
Moderate air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 20.72 µg/m³
  • PM10: 25.44 µg/m³
  • O3: 0.010 ppm
  • NO2: 30.6 ppb
  • SO2: 0.6 ppb
  • CO: 0.41 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 21.66 µg/m³
  • PM10: 25.72 µg/m³
  • O3: 0.011 ppm
  • NO2: 30.5 ppb
  • SO2: 0.6 ppb
  • CO: 0.41 ppm

Health Recommendations:

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