Hourly Weather | Today Tuesday, April 7, 2026
Worcester, Massachusetts
4 PM
Rainy Weather
45°
Feels Like 32°
65
Humidity: 44%
UV Index: 1
Wind: 18 mph
5 PM
Snowy Weather
43°
Feels Like 28°
61
Humidity: 40%
UV Index: 1
Wind: 18 mph
6 PM
Partly Sunny with a Chance of Snow
39°
Feels Like 27°
54
Humidity: 43%
UV Index: 1
Wind: 17 mph
7 PM
Cloudy Weather
37°
Feels Like 25°
49
Humidity: 48%
UV Index: 0
Wind: 16 mph
8 PM
Night
34°
Feels Like 19°
0
Humidity: 59%
UV Index: 0
Wind: 17 mph
9 PM
Night
30°
Feels Like 16°
0
Humidity: 64%
UV Index: 0
Wind: 16 mph
10 PM
Night
30°
Feels Like 16°
0
Humidity: 64%
UV Index: 0
Wind: 16 mph
11 PM
Night
28°
Feels Like 12°
0
Humidity: 64%
UV Index: 0
Wind: 15 mph

Hourly Air Quality Forecast - AQI (US EPA)

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

Pollutant Concentrations:

  • PM2.5: 1.32 µg/m³
  • PM10: 1.71 µg/m³
  • O3: 0.059 ppm
  • NO2: 0.8 ppb
  • SO2: 0.2 ppb
  • CO: 0.13 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 0.9 µg/m³
  • PM10: 1.28 µg/m³
  • O3: 0.055 ppm
  • NO2: 0.9 ppb
  • SO2: 0.2 ppb
  • CO: 0.13 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 0.62 µg/m³
  • PM10: 1 µg/m³
  • O3: 0.050 ppm
  • NO2: 1.3 ppb
  • SO2: 0.2 ppb
  • CO: 0.13 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 0.57 µg/m³
  • PM10: 1.03 µg/m³
  • O3: 0.048 ppm
  • NO2: 1.9 ppb
  • SO2: 0.2 ppb
  • CO: 0.14 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 0.6 µg/m³
  • PM10: 1.12 µg/m³
  • O3: 0.046 ppm
  • NO2: 2.2 ppb
  • SO2: 0.2 ppb
  • CO: 0.14 ppm

Health Recommendations:

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

9 PM
42 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 0.62 µg/m³
  • PM10: 1.16 µg/m³
  • O3: 0.045 ppm
  • NO2: 2.1 ppb
  • SO2: 0.2 ppb
  • CO: 0.15 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 0.63 µg/m³
  • PM10: 1.18 µg/m³
  • O3: 0.045 ppm
  • NO2: 2.1 ppb
  • SO2: 0.2 ppb
  • CO: 0.15 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 0.61 µg/m³
  • PM10: 1.15 µg/m³
  • O3: 0.045 ppm
  • NO2: 2 ppb
  • SO2: 0.2 ppb
  • CO: 0.15 ppm

Health Recommendations:

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