Hourly Weather | Today Thursday, February 26, 2026
Malden, Massachusetts
4 AM
Cloudy Night
30°
Feels Like 25°
39
Frost Risk: 69%
Humidity: 94%
UV Index: 0
Wind: 8 mph
5 AM
Cloudy Night
30°
Feels Like 25°
34
Frost Risk: 57%
Humidity: 86%
UV Index: 0
Wind: 8 mph
6 AM
Cloudy Night
30°
Feels Like 23°
22
Humidity: 75%
UV Index: 0
Wind: 9 mph
7 AM
Sunny Weather
32°
Feels Like 21°
0
Humidity: 67%
UV Index: 0
Wind: 10 mph
8 AM
Cloudy Weather
34°
Feels Like 25°
0
Humidity: 62%
UV Index: 1
Wind: 12 mph
9 AM
Cloudy Weather
36°
Feels Like 27°
0
Humidity: 56%
UV Index: 2
Wind: 13 mph
10 AM
Cloudy Weather
37°
Feels Like 30°
0
Humidity: 51%
UV Index: 3
Wind: 13 mph
11 AM
Cloudy Weather
37°
Feels Like 34°
0
Humidity: 48%
UV Index: 3
Wind: 13 mph
12 PM
Cloudy Weather
39°
Feels Like 36°
0
Humidity: 47%
UV Index: 4
Wind: 12 mph
1 PM
Cloudy Weather
39°
Feels Like 36°
0
Humidity: 47%
UV Index: 3
Wind: 10 mph
2 PM
Cloudy Weather
39°
Feels Like 37°
0
Humidity: 45%
UV Index: 2
Wind: 9 mph
3 PM
Cloudy Weather
39°
Feels Like 36°
0
Humidity: 50%
UV Index: 1
Wind: 8 mph
4 PM
Cloudy Weather
37°
Feels Like 34°
0
Humidity: 53%
UV Index: 1
Wind: 8 mph
5 PM
Cloudy Weather
36°
Feels Like 32°
0
Humidity: 55%
UV Index: 0
Wind: 7 mph
6 PM
Cloudy Weather
36°
Feels Like 30°
0
Humidity: 56%
UV Index: 0
Wind: 7 mph
7 PM
Cloudy Night
34°
Feels Like 28°
1
Humidity: 57%
UV Index: 0
Wind: 6 mph
8 PM
Cloudy Night
30°
Feels Like 27°
1
Humidity: 60%
UV Index: 0
Wind: 7 mph
9 PM
Cloudy Night
28°
Feels Like 23°
1
Humidity: 60%
UV Index: 0
Wind: 7 mph
10 PM
Cloudy Night
28°
Feels Like 21°
1
Humidity: 59%
UV Index: 0
Wind: 8 mph
11 PM
Cloudy Night
27°
Feels Like 19°
1
Humidity: 59%
UV Index: 0
Wind: 8 mph

Hourly Air Quality Forecast - AQI (US EPA)

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

Pollutant Concentrations:

  • PM2.5: 19.68 µg/m³
  • PM10: 22.41 µg/m³
  • O3: 0.026 ppm
  • NO2: 12.7 ppb
  • SO2: 0.7 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.

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

Pollutant Concentrations:

  • PM2.5: 17.79 µg/m³
  • PM10: 20.1 µg/m³
  • O3: 0.027 ppm
  • NO2: 10.8 ppb
  • SO2: 0.6 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.

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

Pollutant Concentrations:

  • PM2.5: 15.45 µg/m³
  • PM10: 17.3 µg/m³
  • O3: 0.029 ppm
  • NO2: 8.8 ppb
  • SO2: 0.6 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.

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

Pollutant Concentrations:

  • PM2.5: 13.27 µg/m³
  • PM10: 14.8 µg/m³
  • O3: 0.030 ppm
  • NO2: 7.7 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 AM
46 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 11.1 µg/m³
  • PM10: 12.45 µg/m³
  • O3: 0.032 ppm
  • NO2: 7.8 ppb
  • SO2: 0.5 ppb
  • CO: 0.24 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 8.8 µg/m³
  • PM10: 10.02 µg/m³
  • O3: 0.035 ppm
  • NO2: 6.8 ppb
  • SO2: 0.5 ppb
  • CO: 0.23 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 6.64 µg/m³
  • PM10: 7.67 µg/m³
  • O3: 0.038 ppm
  • NO2: 5.6 ppb
  • SO2: 0.5 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: 3.12 µg/m³
  • PM10: 3.61 µg/m³
  • O3: 0.045 ppm
  • NO2: 3.1 ppb
  • SO2: 0.5 ppb
  • CO: 0.18 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: 2.47 µg/m³
  • PM10: 2.88 µg/m³
  • O3: 0.047 ppm
  • NO2: 2.4 ppb
  • SO2: 0.4 ppb
  • CO: 0.17 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 2.74 µg/m³
  • PM10: 3.15 µg/m³
  • O3: 0.049 ppm
  • NO2: 2.1 ppb
  • SO2: 0.4 ppb
  • CO: 0.17 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 3.35 µg/m³
  • PM10: 3.81 µg/m³
  • O3: 0.050 ppm
  • NO2: 2.1 ppb
  • SO2: 0.4 ppb
  • CO: 0.17 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 3.87 µg/m³
  • PM10: 4.41 µg/m³
  • O3: 0.050 ppm
  • NO2: 2.5 ppb
  • SO2: 0.3 ppb
  • CO: 0.18 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 4.33 µg/m³
  • PM10: 4.94 µg/m³
  • O3: 0.049 ppm
  • NO2: 3.2 ppb
  • SO2: 0.3 ppb
  • CO: 0.18 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 4.88 µg/m³
  • PM10: 5.59 µg/m³
  • O3: 0.048 ppm
  • NO2: 4.6 ppb
  • SO2: 0.3 ppb
  • CO: 0.19 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 5.87 µg/m³
  • PM10: 6.76 µg/m³
  • O3: 0.044 ppm
  • NO2: 6.8 ppb
  • SO2: 0.3 ppb
  • CO: 0.21 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 7.57 µg/m³
  • PM10: 8.77 µg/m³
  • O3: 0.041 ppm
  • NO2: 8.7 ppb
  • SO2: 0.3 ppb
  • CO: 0.23 ppm

Health Recommendations:

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

8 PM
40 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 9.7 µg/m³
  • PM10: 11.25 µg/m³
  • O3: 0.037 ppm
  • NO2: 10.7 ppb
  • SO2: 0.4 ppb
  • CO: 0.25 ppm

Health Recommendations:

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

9 PM
48 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 11.63 µg/m³
  • PM10: 13.42 µg/m³
  • O3: 0.034 ppm
  • NO2: 12.3 ppb
  • SO2: 0.5 ppb
  • CO: 0.27 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 12.44 µg/m³
  • PM10: 14.31 µg/m³
  • O3: 0.032 ppm
  • NO2: 12.9 ppb
  • SO2: 0.5 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.

11 PM
48 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 11.55 µg/m³
  • PM10: 13.25 µg/m³
  • O3: 0.031 ppm
  • NO2: 11.7 ppb
  • SO2: 0.6 ppb
  • CO: 0.27 ppm

Health Recommendations:

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