Hourly Weather | Today Wednesday, August 12, 2026
Newton, Massachusetts
9 AM
Sunny Weather
73°
Feels Like 77°
0
Humidity: 61%
UV Index: 3
Wind: 5 mph
10 AM
Sunny Weather
79°
Feels Like 82°
0
Humidity: 52%
UV Index: 4
Wind: 5 mph
11 AM
Cloudy Weather
81°
Feels Like 88°
0
Humidity: 46%
UV Index: 6
Wind: 5 mph
12 PM
Cloudy Weather
82°
Feels Like 90°
0
Humidity: 43%
UV Index: 7
Wind: 6 mph
1 PM
Cloudy Weather
82°
Feels Like 91°
0
Humidity: 41%
UV Index: 8
Wind: 6 mph
2 PM
Cloudy Weather
84°
Feels Like 90°
0
Humidity: 40%
UV Index: 7
Wind: 6 mph
3 PM
Cloudy Weather
84°
Feels Like 90°
0
Humidity: 38%
UV Index: 4
Wind: 7 mph
4 PM
Cloudy Weather
84°
Feels Like 84°
0
Humidity: 41%
UV Index: 3
Wind: 7 mph
5 PM
Cloudy Weather
82°
Feels Like 82°
0
Humidity: 42%
UV Index: 2
Wind: 7 mph
6 PM
Cloudy Weather
82°
Feels Like 82°
0
Humidity: 44%
UV Index: 1
Wind: 7 mph
7 PM
Cloudy Weather
81°
Feels Like 79°
0
Humidity: 48%
UV Index: 1
Wind: 6 mph
8 PM
Cloudy Night
79°
Feels Like 75°
43
Humidity: 53%
UV Index: 0
Wind: 6 mph
9 PM
Cloudy Night
75°
Feels Like 73°
47
Humidity: 60%
UV Index: 0
Wind: 6 mph
10 PM
Stormy Weather
73°
Feels Like 68°
51
Humidity: 67%
UV Index: 0
Wind: 6 mph
11 PM
Cloudy Night
72°
Feels Like 70°
24
Humidity: 73%
UV Index: 0
Wind: 6 mph

Hourly Air Quality Forecast - AQI (US EPA)

9 AM
14 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 3 µg/m³
  • PM10: 3.64 µg/m³
  • O3: 0.015 ppm
  • NO2: 2.6 ppb
  • SO2: 0.3 ppb
  • CO: 0.12 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 2.96 µg/m³
  • PM10: 3.63 µg/m³
  • O3: 0.017 ppm
  • NO2: 2.6 ppb
  • SO2: 0.3 ppb
  • CO: 0.12 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 3.37 µg/m³
  • PM10: 4.02 µg/m³
  • O3: 0.022 ppm
  • NO2: 2.5 ppb
  • SO2: 0.4 ppb
  • CO: 0.12 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 3.33 µg/m³
  • PM10: 3.83 µg/m³
  • O3: 0.034 ppm
  • NO2: 1.4 ppb
  • SO2: 0.3 ppb
  • CO: 0.11 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 3.43 µg/m³
  • PM10: 3.9 µg/m³
  • O3: 0.039 ppm
  • NO2: 1 ppb
  • SO2: 0.2 ppb
  • CO: 0.10 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 3.46 µg/m³
  • PM10: 3.93 µg/m³
  • O3: 0.040 ppm
  • NO2: 1 ppb
  • SO2: 0.2 ppb
  • CO: 0.10 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 3.3 µg/m³
  • PM10: 3.76 µg/m³
  • O3: 0.041 ppm
  • NO2: 1.2 ppb
  • SO2: 0.3 ppb
  • CO: 0.10 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 3.07 µg/m³
  • PM10: 3.53 µg/m³
  • O3: 0.041 ppm
  • NO2: 1.2 ppb
  • SO2: 0.2 ppb
  • CO: 0.10 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 2.79 µg/m³
  • PM10: 3.3 µg/m³
  • O3: 0.041 ppm
  • NO2: 1.2 ppb
  • SO2: 0.2 ppb
  • CO: 0.10 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 2.65 µg/m³
  • PM10: 3.28 µg/m³
  • O3: 0.040 ppm
  • NO2: 1.8 ppb
  • SO2: 0.2 ppb
  • CO: 0.10 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 2.78 µg/m³
  • PM10: 3.57 µg/m³
  • O3: 0.036 ppm
  • NO2: 3.3 ppb
  • SO2: 0.2 ppb
  • CO: 0.11 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 3.24 µg/m³
  • PM10: 4.21 µg/m³
  • O3: 0.033 ppm
  • NO2: 4.3 ppb
  • SO2: 0.3 ppb
  • CO: 0.12 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 3.96 µg/m³
  • PM10: 5.17 µg/m³
  • O3: 0.032 ppm
  • NO2: 4.8 ppb
  • SO2: 0.3 ppb
  • CO: 0.13 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 5.04 µg/m³
  • PM10: 6.65 µg/m³
  • O3: 0.031 ppm
  • NO2: 5 ppb
  • SO2: 0.4 ppb
  • CO: 0.13 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 6.45 µg/m³
  • PM10: 8.59 µg/m³
  • O3: 0.032 ppm
  • NO2: 4.9 ppb
  • SO2: 0.4 ppb
  • CO: 0.14 ppm

Health Recommendations:

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