Hourly Weather | Today Thursday, February 26, 2026
Framingham, Massachusetts
3 AM
Cloudy Night
28°
Feels Like 21°
49
Frost Risk: 96%
Humidity: 98%
UV Index: 0
Wind: 8 mph
4 AM
Cloudy Night
28°
Feels Like 21°
24
Frost Risk: 98%
Humidity: 98%
UV Index: 0
Wind: 8 mph
5 AM
Cloudy Night
28°
Feels Like 23°
24
Frost Risk: 93%
Humidity: 89%
UV Index: 0
Wind: 8 mph
6 AM
Cloudy Night
30°
Feels Like 23°
16
Humidity: 78%
UV Index: 0
Wind: 8 mph
7 AM
Sunny Weather
30°
Feels Like 25°
0
Humidity: 69%
UV Index: 0
Wind: 8 mph
8 AM
Sunny Weather
32°
Feels Like 27°
0
Humidity: 60%
UV Index: 1
Wind: 9 mph
9 AM
Sunny Weather
34°
Feels Like 28°
0
Humidity: 53%
UV Index: 2
Wind: 10 mph
10 AM
Cloudy Weather
37°
Feels Like 34°
0
Humidity: 47%
UV Index: 3
Wind: 10 mph
11 AM
Cloudy Weather
37°
Feels Like 36°
0
Humidity: 43%
UV Index: 3
Wind: 10 mph
12 PM
Cloudy Weather
39°
Feels Like 37°
0
Humidity: 41%
UV Index: 4
Wind: 10 mph
1 PM
Cloudy Weather
39°
Feels Like 37°
1
Humidity: 41%
UV Index: 3
Wind: 9 mph
2 PM
Cloudy Weather
41°
Feels Like 39°
1
Humidity: 40%
UV Index: 2
Wind: 8 mph
3 PM
Cloudy Weather
39°
Feels Like 37°
1
Humidity: 43%
UV Index: 1
Wind: 8 mph
4 PM
Cloudy Weather
37°
Feels Like 36°
1
Humidity: 46%
UV Index: 1
Wind: 7 mph
5 PM
Cloudy Weather
37°
Feels Like 34°
1
Humidity: 49%
UV Index: 0
Wind: 7 mph
6 PM
Cloudy Weather
36°
Feels Like 30°
1
Humidity: 53%
UV Index: 0
Wind: 6 mph
7 PM
Cloudy Night
32°
Feels Like 28°
2
Humidity: 58%
UV Index: 0
Wind: 6 mph
8 PM
Cloudy Night
30°
Feels Like 27°
2
Humidity: 61%
UV Index: 0
Wind: 6 mph
9 PM
Cloudy Night
28°
Feels Like 25°
2
Humidity: 61%
UV Index: 0
Wind: 6 mph
10 PM
Cloudy Night
27°
Feels Like 23°
2
Humidity: 60%
UV Index: 0
Wind: 7 mph
11 PM
Cloudy Night
25°
Feels Like 21°
2
Frost Risk: 61%
Humidity: 62%
UV Index: 0
Wind: 6 mph

Hourly Air Quality Forecast - AQI (US EPA)

3 AM
63 AQI
Moderate air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 17.94 µg/m³
  • PM10: 20.91 µg/m³
  • O3: 0.028 ppm
  • NO2: 13 ppb
  • SO2: 0.9 ppb
  • CO: 0.27 ppm

Health Recommendations:

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

4 AM
60 AQI
Moderate air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 16.79 µg/m³
  • PM10: 19.52 µg/m³
  • O3: 0.028 ppm
  • NO2: 12.1 ppb
  • SO2: 0.8 ppb
  • CO: 0.26 ppm

Health Recommendations:

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

5 AM
57 AQI
Moderate air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 15.06 µg/m³
  • PM10: 17.45 µg/m³
  • O3: 0.028 ppm
  • NO2: 10.8 ppb
  • SO2: 0.8 ppb
  • CO: 0.25 ppm

Health Recommendations:

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

6 AM
53 AQI
Moderate air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 13.22 µg/m³
  • PM10: 15.26 µg/m³
  • O3: 0.029 ppm
  • NO2: 9.6 ppb
  • SO2: 0.8 ppb
  • CO: 0.25 ppm

Health Recommendations:

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

7 AM
48 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 11.55 µg/m³
  • PM10: 13.33 µg/m³
  • O3: 0.031 ppm
  • NO2: 8.9 ppb
  • SO2: 0.8 ppb
  • CO: 0.24 ppm

Health Recommendations:

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

8 AM
42 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 9.98 µg/m³
  • PM10: 11.61 µg/m³
  • O3: 0.033 ppm
  • NO2: 9.1 ppb
  • SO2: 0.8 ppb
  • CO: 0.23 ppm

Health Recommendations:

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

9 AM
35 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 8.42 µg/m³
  • PM10: 9.91 µg/m³
  • O3: 0.035 ppm
  • NO2: 7.8 ppb
  • SO2: 0.8 ppb
  • CO: 0.23 ppm

Health Recommendations:

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

10 AM
36 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 6.99 µg/m³
  • PM10: 8.27 µg/m³
  • O3: 0.039 ppm
  • NO2: 6.3 ppb
  • SO2: 0.8 ppb
  • CO: 0.22 ppm

Health Recommendations:

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

11 AM
41 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 4.1 µg/m³
  • PM10: 4.78 µg/m³
  • O3: 0.045 ppm
  • NO2: 3.6 ppb
  • SO2: 0.6 ppb
  • CO: 0.19 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 3.53 µg/m³
  • PM10: 4.08 µg/m³
  • O3: 0.047 ppm
  • NO2: 2.7 ppb
  • SO2: 0.5 ppb
  • CO: 0.18 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 3.84 µg/m³
  • PM10: 4.38 µg/m³
  • O3: 0.050 ppm
  • NO2: 2.4 ppb
  • SO2: 0.5 ppb
  • CO: 0.17 ppm

Health Recommendations:

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

2 PM
48 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 4.55 µg/m³
  • PM10: 5.11 µg/m³
  • O3: 0.052 ppm
  • NO2: 2.4 ppb
  • SO2: 0.5 ppb
  • CO: 0.17 ppm

Health Recommendations:

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

3 PM
48 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 5.38 µg/m³
  • PM10: 6.02 µg/m³
  • O3: 0.052 ppm
  • NO2: 2.7 ppb
  • SO2: 0.5 ppb
  • CO: 0.18 ppm

Health Recommendations:

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

4 PM
48 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 6.34 µg/m³
  • PM10: 7.08 µg/m³
  • O3: 0.052 ppm
  • NO2: 3.4 ppb
  • SO2: 0.5 ppb
  • CO: 0.18 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 7.63 µg/m³
  • PM10: 8.59 µg/m³
  • O3: 0.050 ppm
  • NO2: 5.4 ppb
  • SO2: 0.5 ppb
  • CO: 0.19 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 9.78 µg/m³
  • PM10: 11.14 µg/m³
  • O3: 0.045 ppm
  • NO2: 8.7 ppb
  • SO2: 0.5 ppb
  • CO: 0.22 ppm

Health Recommendations:

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

7 PM
52 AQI
Moderate air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 12.97 µg/m³
  • PM10: 14.9 µg/m³
  • O3: 0.041 ppm
  • NO2: 11.4 ppb
  • SO2: 0.5 ppb
  • CO: 0.25 ppm

Health Recommendations:

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

8 PM
60 AQI
Moderate air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 16.68 µg/m³
  • PM10: 19.2 µg/m³
  • O3: 0.037 ppm
  • NO2: 13.7 ppb
  • SO2: 0.6 ppb
  • CO: 0.28 ppm

Health Recommendations:

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

9 PM
67 AQI
Moderate air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 20.05 µg/m³
  • PM10: 22.99 µg/m³
  • O3: 0.034 ppm
  • NO2: 15.4 ppb
  • SO2: 0.7 ppb
  • CO: 0.30 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 21.76 µg/m³
  • PM10: 24.84 µg/m³
  • O3: 0.031 ppm
  • NO2: 16 ppb
  • SO2: 0.8 ppb
  • CO: 0.31 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 20.53 µg/m³
  • PM10: 23.36 µg/m³
  • O3: 0.031 ppm
  • NO2: 14.7 ppb
  • SO2: 0.8 ppb
  • CO: 0.30 ppm

Health Recommendations:

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