Hourly Weather | Today Monday, October 6, 2025
Cambridge, Massachusetts
11 AM
Cloudy Weather
73°
Feels Like 75°
0
Humidity: 56%
Wind: 8 mph
UV Index: 30
12 PM
Cloudy Weather
79°
Feels Like 81°
0
Humidity: 48%
Wind: 9 mph
UV Index: 37
1 PM
Cloudy Weather
81°
Feels Like 82°
0
Humidity: 43%
Wind: 9 mph
UV Index: 39
2 PM
Cloudy Weather
82°
Feels Like 82°
0
Humidity: 40%
Wind: 10 mph
UV Index: 37
3 PM
Cloudy Weather
84°
Feels Like 84°
0
Humidity: 37%
Wind: 10 mph
UV Index: 30
4 PM
Cloudy Weather
82°
Feels Like 81°
0
Humidity: 40%
Wind: 10 mph
UV Index: 22
5 PM
Cloudy Weather
81°
Feels Like 79°
0
Humidity: 42%
Wind: 10 mph
UV Index: 14
6 PM
Cloudy Weather
77°
Feels Like 75°
0
Humidity: 48%
Wind: 10 mph
UV Index: 6
7 PM
Cloudy Night
73°
Feels Like 72°
0
Humidity: 56%
Wind: 9 mph
UV Index: 0
8 PM
Cloudy Night
72°
Feels Like 68°
0
Humidity: 65%
Wind: 9 mph
UV Index: 0
9 PM
Cloudy Night
68°
Feels Like 64°
0
Humidity: 72%
Wind: 8 mph
UV Index: 0
10 PM
Cloudy Night
66°
Feels Like 63°
0
Humidity: 76%
Wind: 8 mph
UV Index: 0
11 PM
Cloudy Night
64°
Feels Like 63°
0
Humidity: 80%
Wind: 8 mph
UV Index: 0

Hourly Air Quality Forecast - AQI (US EPA)

11 AM
57 AQI
Moderate air quality Dominant pollutant: pm25
Details

Pollutant Concentrations:

  • PM2.5: 12.41 µg/m³
  • PM10: 15.16 µg/m³
  • O₃: 29.37 ppb
  • NO₂: 14.13 ppb
  • SO₂: 1.57 ppb
  • CO: 335.38 ppb

Health Recommendations:

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

12 PM
57 AQI
Moderate air quality Dominant pollutant: pm25
Details

Pollutant Concentrations:

  • PM2.5: 12.22 µg/m³
  • PM10: 14.67 µg/m³
  • O₃: 34.68 ppb
  • NO₂: 12.98 ppb
  • SO₂: 1.73 ppb
  • CO: 323.21 ppb

Health Recommendations:

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

1 PM
57 AQI
Moderate air quality Dominant pollutant: pm25
Details

Pollutant Concentrations:

  • PM2.5: 11.93 µg/m³
  • PM10: 13.77 µg/m³
  • O₃: 45.30 ppb
  • NO₂: 10.69 ppb
  • SO₂: 2.07 ppb
  • CO: 298.86 ppb

Health Recommendations:

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

2 PM
57 AQI
Moderate air quality Dominant pollutant: pm25
Details

Pollutant Concentrations:

  • PM2.5: 11.40 µg/m³
  • PM10: 12.64 µg/m³
  • O₃: 58.62 ppb
  • NO₂: 7.84 ppb
  • SO₂: 2.25 ppb
  • CO: 266.32 ppb

Health Recommendations:

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

3 PM
57 AQI
Moderate air quality Dominant pollutant: pm25
Details

Pollutant Concentrations:

  • PM2.5: 10.95 µg/m³
  • PM10: 11.91 µg/m³
  • O₃: 62.55 ppb
  • NO₂: 7.18 ppb
  • SO₂: 2.32 ppb
  • CO: 253.11 ppb

Health Recommendations:

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

4 PM
57 AQI
Moderate air quality Dominant pollutant: pm25
Details

Pollutant Concentrations:

  • PM2.5: 10.71 µg/m³
  • PM10: 11.50 µg/m³
  • O₃: 64.55 ppb
  • NO₂: 6.97 ppb
  • SO₂: 2.28 ppb
  • CO: 243.54 ppb

Health Recommendations:

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

5 PM
57 AQI
Moderate air quality Dominant pollutant: pm25
Details

Pollutant Concentrations:

  • PM2.5: 10.77 µg/m³
  • PM10: 11.46 µg/m³
  • O₃: 65.57 ppb
  • NO₂: 6.99 ppb
  • SO₂: 2.18 ppb
  • CO: 235.79 ppb

Health Recommendations:

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

6 PM
57 AQI
Moderate air quality Dominant pollutant: pm25
Details

Pollutant Concentrations:

  • PM2.5: 11.13 µg/m³
  • PM10: 11.26 µg/m³
  • O₃: 67.86 ppb
  • NO₂: 6.49 ppb
  • SO₂: 2.46 ppb
  • CO: 217.24 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
59 AQI
Moderate air quality Dominant pollutant: o3
Details

Pollutant Concentrations:

  • PM2.5: 11.05 µg/m³
  • PM10: 11.22 µg/m³
  • O₃: 61.34 ppb
  • NO₂: 7.78 ppb
  • SO₂: 2.42 ppb
  • CO: 221.01 ppb

Health Recommendations:

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

8 PM
67 AQI
Moderate air quality Dominant pollutant: o3
Details

Pollutant Concentrations:

  • PM2.5: 10.01 µg/m³
  • PM10: 10.31 µg/m³
  • O₃: 54.83 ppb
  • NO₂: 9.08 ppb
  • SO₂: 2.38 ppb
  • CO: 224.77 ppb

Health Recommendations:

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

9 PM
69 AQI
Moderate air quality Dominant pollutant: o3
Details

Pollutant Concentrations:

  • PM2.5: 8.68 µg/m³
  • PM10: 9.11 µg/m³
  • O₃: 51.05 ppb
  • NO₂: 8.24 ppb
  • SO₂: 2.14 ppb
  • CO: 209.50 ppb

Health Recommendations:

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

10 PM
65 AQI
Moderate air quality Dominant pollutant: o3
Details

Pollutant Concentrations:

  • PM2.5: 7.49 µg/m³
  • PM10: 7.99 µg/m³
  • O₃: 47.28 ppb
  • NO₂: 7.40 ppb
  • SO₂: 1.90 ppb
  • CO: 194.23 ppb

Health Recommendations:

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

11 PM
57 AQI
Moderate air quality Dominant pollutant: o3
Details

Pollutant Concentrations:

  • PM2.5: 6.75 µg/m³
  • PM10: 7.42 µg/m³
  • O₃: 43.50 ppb
  • NO₂: 6.57 ppb
  • SO₂: 1.66 ppb
  • CO: 178.96 ppb

Health Recommendations:

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