Hourly Weather | Today Thursday, September 11, 2025
Worcester, Massachusetts
7 AM
Sunny Weather
48°
Feels Like 45°
0
Humidity: 100%
Wind: 7 mph
UV Index: 2
8 AM
Foggy Weather
54°
Feels Like 52°
0
Humidity: 83%
Wind: 7 mph
UV Index: 11
9 AM
Foggy Weather
59°
Feels Like 59°
0
Humidity: 72%
Wind: 8 mph
UV Index: 20
10 AM
Foggy Weather
64°
Feels Like 66°
0
Humidity: 57%
Wind: 8 mph
UV Index: 31
11 AM
Foggy Weather
70°
Feels Like 72°
0
Humidity: 50%
Wind: 8 mph
UV Index: 42
12 PM
Foggy Weather
72°
Feels Like 75°
0
Humidity: 45%
Wind: 8 mph
UV Index: 49
1 PM
Foggy Weather
73°
Feels Like 79°
0
Humidity: 42%
Wind: 8 mph
UV Index: 54
2 PM
Cloudy Weather
75°
Feels Like 79°
0
Humidity: 40%
Wind: 7 mph
UV Index: 49
3 PM
Cloudy Weather
75°
Feels Like 81°
0
Humidity: 39%
Wind: 7 mph
UV Index: 42
4 PM
Cloudy Weather
79°
Feels Like 81°
0
Humidity: 39%
Wind: 7 mph
UV Index: 31
5 PM
Cloudy Weather
75°
Feels Like 75°
0
Humidity: 43%
Wind: 7 mph
UV Index: 20
6 PM
Cloudy Weather
73°
Feels Like 73°
0
Humidity: 46%
Wind: 6 mph
UV Index: 11
7 PM
Cloudy Weather
72°
Feels Like 70°
0
Humidity: 54%
Wind: 6 mph
UV Index: 2
8 PM
Cloudy Night
68°
Feels Like 66°
0
Humidity: 61%
Wind: 6 mph
UV Index: 0
9 PM
Cloudy Night
64°
Feels Like 63°
0
Humidity: 68%
Wind: 6 mph
UV Index: 0
10 PM
Cloudy Night
63°
Feels Like 61°
0
Humidity: 73%
Wind: 7 mph
UV Index: 0
11 PM
Cloudy Night
63°
Feels Like 61°
0
Humidity: 73%
Wind: 7 mph
UV Index: 0

Hourly Air Quality Forecast - AQI (US EPA)

7 AM
45 AQI
Good air quality Dominant pollutant: pm25
Details

Pollutant Concentrations:

  • PM2.5: 10.23 µg/m³
  • PM10: 10.90 µg/m³
  • O₃: 28.78 ppb
  • NO₂: 3.16 ppb
  • SO₂: 0.48 ppb
  • CO: 162.12 ppb

Health Recommendations:

With this level of air quality, you have no limitations. Enjoy the outdoors

8 AM
46 AQI
Good air quality Dominant pollutant: pm25
Details

Pollutant Concentrations:

  • PM2.5: 10.31 µg/m³
  • PM10: 10.80 µg/m³
  • O₃: 28.45 ppb
  • NO₂: 3.37 ppb
  • SO₂: 0.46 ppb
  • CO: 168.79 ppb

Health Recommendations:

With this level of air quality, you have no limitations. Enjoy the outdoors

9 AM
47 AQI
Good air quality Dominant pollutant: pm25
Details

Pollutant Concentrations:

  • PM2.5: 9.91 µg/m³
  • PM10: 10.27 µg/m³
  • O₃: 35.54 ppb
  • NO₂: 2.69 ppb
  • SO₂: 0.47 ppb
  • CO: 164.29 ppb

Health Recommendations:

With this level of air quality, you have no limitations. Enjoy the outdoors

10 AM
47 AQI
Good air quality Dominant pollutant: pm25
Details

Pollutant Concentrations:

  • PM2.5: 8.63 µg/m³
  • PM10: 8.92 µg/m³
  • O₃: 42.64 ppb
  • NO₂: 2.01 ppb
  • SO₂: 0.48 ppb
  • CO: 159.78 ppb

Health Recommendations:

With this level of air quality, you have no limitations. Enjoy the outdoors

11 AM
47 AQI
Good air quality Dominant pollutant: pm25
Details

Pollutant Concentrations:

  • PM2.5: 7.17 µg/m³
  • PM10: 7.36 µg/m³
  • O₃: 49.73 ppb
  • NO₂: 1.34 ppb
  • SO₂: 0.49 ppb
  • CO: 155.28 ppb

Health Recommendations:

With this level of air quality, you have no limitations. Enjoy the outdoors

12 PM
48 AQI
Good air quality Dominant pollutant: pm25
Details

Pollutant Concentrations:

  • PM2.5: 6.29 µg/m³
  • PM10: 6.42 µg/m³
  • O₃: 52.66 ppb
  • NO₂: 1.18 ppb
  • SO₂: 0.47 ppb
  • CO: 151.49 ppb

Health Recommendations:

With this level of air quality, you have no limitations. Enjoy the outdoors

1 PM
48 AQI
Good air quality Dominant pollutant: pm25
Details

Pollutant Concentrations:

  • PM2.5: 5.92 µg/m³
  • PM10: 6.04 µg/m³
  • O₃: 55.60 ppb
  • NO₂: 1.02 ppb
  • SO₂: 0.45 ppb
  • CO: 147.70 ppb

Health Recommendations:

With this level of air quality, you have no limitations. Enjoy the outdoors

2 PM
47 AQI
Good air quality Dominant pollutant: pm25
Details

Pollutant Concentrations:

  • PM2.5: 5.93 µg/m³
  • PM10: 6.05 µg/m³
  • O₃: 58.54 ppb
  • NO₂: 0.87 ppb
  • SO₂: 0.42 ppb
  • CO: 143.91 ppb

Health Recommendations:

With this level of air quality, you have no limitations. Enjoy the outdoors

3 PM
47 AQI
Good air quality Dominant pollutant: pm25
Details

Pollutant Concentrations:

  • PM2.5: 6.26 µg/m³
  • PM10: 6.39 µg/m³
  • O₃: 58.55 ppb
  • NO₂: 1.22 ppb
  • SO₂: 0.45 ppb
  • CO: 148.12 ppb

Health Recommendations:

With this level of air quality, you have no limitations. Enjoy the outdoors

4 PM
47 AQI
Good air quality Dominant pollutant: pm25
Details

Pollutant Concentrations:

  • PM2.5: 6.88 µg/m³
  • PM10: 7.01 µg/m³
  • O₃: 58.56 ppb
  • NO₂: 1.58 ppb
  • SO₂: 0.47 ppb
  • CO: 152.34 ppb

Health Recommendations:

With this level of air quality, you have no limitations. Enjoy the outdoors

5 PM
50 AQI
Good air quality Dominant pollutant: o3
Details

Pollutant Concentrations:

  • PM2.5: 7.85 µg/m³
  • PM10: 7.98 µg/m³
  • O₃: 58.57 ppb
  • NO₂: 1.94 ppb
  • SO₂: 0.49 ppb
  • CO: 156.55 ppb

Health Recommendations:

With this level of air quality, you have no limitations. Enjoy the outdoors

6 PM
52 AQI
Moderate air quality Dominant pollutant: o3
Details

Pollutant Concentrations:

  • PM2.5: 10.13 µg/m³
  • PM10: 10.25 µg/m³
  • O₃: 51.96 ppb
  • NO₂: 7.43 ppb
  • SO₂: 0.56 ppb
  • CO: 215.25 ppb

Health Recommendations:

Air quality is currently in the acceptable range. However, sensitive individuals should be aware of potential risks from certain pollutants.

7 PM
50 AQI
Good air quality Dominant pollutant: o3
Details

Pollutant Concentrations:

  • PM2.5: 13.53 µg/m³
  • PM10: 13.65 µg/m³
  • O₃: 45.34 ppb
  • NO₂: 12.93 ppb
  • SO₂: 0.63 ppb
  • CO: 273.96 ppb

Health Recommendations:

With this level of air quality, you have no limitations. Enjoy the outdoors

8 PM
51 AQI
Moderate air quality Dominant pollutant: pm25
Details

Pollutant Concentrations:

  • PM2.5: 15.41 µg/m³
  • PM10: 15.54 µg/m³
  • O₃: 38.72 ppb
  • NO₂: 18.42 ppb
  • SO₂: 0.70 ppb
  • CO: 332.66 ppb

Health Recommendations:

Air quality is currently in the acceptable range. However, sensitive individuals should be aware of potential risks from certain pollutants.