Hourly Weather | Today Saturday, May 9, 2026
Lowell, Massachusetts
2 AM
Night
43°
Feels Like 39°
15
Humidity: 80%
UV Index: 0
Wind: 6 mph
3 AM
Cloudy Night
39°
Feels Like 37°
11
Humidity: 84%
UV Index: 0
Wind: 6 mph
4 AM
Cloudy Night
39°
Feels Like 37°
11
Humidity: 85%
UV Index: 0
Wind: 5 mph
5 AM
Cloudy Night
37°
Feels Like 36°
11
Humidity: 91%
UV Index: 0
Wind: 5 mph
6 AM
Cloudy Weather
39°
Feels Like 37°
11
Humidity: 87%
UV Index: 0
Wind: 5 mph
7 AM
Cloudy Weather
43°
Feels Like 43°
15
Humidity: 80%
UV Index: 0
Wind: 5 mph
8 AM
Cloudy Weather
46°
Feels Like 45°
49
Humidity: 76%
UV Index: 1
Wind: 6 mph
9 AM
Rainy Weather
48°
Feels Like 45°
66
Humidity: 74%
UV Index: 1
Wind: 6 mph
10 AM
Rainy Weather
52°
Feels Like 48°
66
Humidity: 71%
UV Index: 1
Wind: 6 mph
11 AM
Rainy Weather
52°
Feels Like 48°
63
Humidity: 72%
UV Index: 1
Wind: 6 mph
12 PM
Rainy Weather
54°
Feels Like 50°
63
Humidity: 72%
UV Index: 2
Wind: 7 mph
1 PM
Cloudy Weather
54°
Feels Like 54°
49
Humidity: 73%
UV Index: 2
Wind: 7 mph
2 PM
Cloudy Weather
54°
Feels Like 54°
49
Humidity: 76%
UV Index: 2
Wind: 7 mph
3 PM
Rainy Weather
55°
Feels Like 52°
66
Humidity: 78%
UV Index: 1
Wind: 7 mph
4 PM
Rainy Weather
55°
Feels Like 52°
66
Humidity: 79%
UV Index: 1
Wind: 7 mph
5 PM
Rainy Weather
55°
Feels Like 52°
66
Humidity: 79%
UV Index: 1
Wind: 7 mph
6 PM
Rainy Weather
55°
Feels Like 48°
66
Humidity: 84%
UV Index: 0
Wind: 7 mph
7 PM
Cloudy Weather
54°
Feels Like 52°
49
Humidity: 87%
UV Index: 0
Wind: 7 mph
8 PM
Cloudy Weather
54°
Feels Like 52°
20
Humidity: 89%
UV Index: 0
Wind: 7 mph
9 PM
Cloudy Night
54°
Feels Like 50°
20
Humidity: 92%
UV Index: 0
Wind: 7 mph
10 PM
Cloudy Night
52°
Feels Like 48°
20
Humidity: 94%
UV Index: 0
Wind: 7 mph
11 PM
Cloudy Night
52°
Feels Like 48°
20
Humidity: 95%
UV Index: 0
Wind: 7 mph

Hourly Air Quality Forecast - AQI (US EPA)

2 AM
30 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 7.24 µg/m³
  • PM10: 9.72 µg/m³
  • O3: 0.026 ppm
  • NO2: 5.7 ppb
  • SO2: 0.1 ppb
  • CO: 0.18 ppm

Health Recommendations:

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

3 AM
31 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 7.52 µg/m³
  • PM10: 10.31 µg/m³
  • O3: 0.028 ppm
  • NO2: 4.3 ppb
  • SO2: 0.1 ppb
  • CO: 0.17 ppm

Health Recommendations:

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

4 AM
32 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 7.71 µg/m³
  • PM10: 10.88 µg/m³
  • O3: 0.029 ppm
  • NO2: 3.4 ppb
  • SO2: 0.1 ppb
  • CO: 0.16 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 7.85 µg/m³
  • PM10: 11.48 µg/m³
  • O3: 0.031 ppm
  • NO2: 2.8 ppb
  • SO2: 0.2 ppb
  • CO: 0.16 ppm

Health Recommendations:

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

6 AM
33 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 7.91 µg/m³
  • PM10: 11.96 µg/m³
  • O3: 0.033 ppm
  • NO2: 2.4 ppb
  • SO2: 0.2 ppb
  • CO: 0.15 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 7.89 µg/m³
  • PM10: 12.16 µg/m³
  • O3: 0.033 ppm
  • NO2: 2.5 ppb
  • SO2: 0.2 ppb
  • CO: 0.15 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 7.8 µg/m³
  • PM10: 12.22 µg/m³
  • O3: 0.034 ppm
  • NO2: 2.9 ppb
  • SO2: 0.2 ppb
  • CO: 0.15 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 7.47 µg/m³
  • PM10: 11.75 µg/m³
  • O3: 0.037 ppm
  • NO2: 2.7 ppb
  • SO2: 0.4 ppb
  • CO: 0.15 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: 7.15 µg/m³
  • PM10: 10.79 µg/m³
  • O3: 0.038 ppm
  • NO2: 2.7 ppb
  • SO2: 0.5 ppb
  • CO: 0.15 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 6.95 µg/m³
  • PM10: 10.15 µg/m³
  • O3: 0.039 ppm
  • NO2: 2.3 ppb
  • SO2: 0.5 ppb
  • CO: 0.15 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 6.87 µg/m³
  • PM10: 9.6 µg/m³
  • O3: 0.046 ppm
  • NO2: 1.6 ppb
  • SO2: 0.5 ppb
  • CO: 0.14 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: 7.14 µg/m³
  • PM10: 9.57 µg/m³
  • O3: 0.049 ppm
  • NO2: 1.2 ppb
  • SO2: 0.5 ppb
  • CO: 0.13 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: 7.51 µg/m³
  • PM10: 9.89 µg/m³
  • O3: 0.052 ppm
  • NO2: 1 ppb
  • SO2: 0.4 ppb
  • CO: 0.13 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 7.52 µg/m³
  • PM10: 9.5 µg/m³
  • O3: 0.054 ppm
  • NO2: 1 ppb
  • SO2: 0.4 ppb
  • CO: 0.13 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 7.02 µg/m³
  • PM10: 8.24 µg/m³
  • O3: 0.053 ppm
  • NO2: 1 ppb
  • SO2: 0.3 ppb
  • CO: 0.12 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 6.44 µg/m³
  • PM10: 7.13 µg/m³
  • O3: 0.053 ppm
  • NO2: 1.2 ppb
  • SO2: 0.3 ppb
  • CO: 0.12 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 5.89 µg/m³
  • PM10: 6.32 µg/m³
  • O3: 0.052 ppm
  • NO2: 1.3 ppb
  • SO2: 0.2 ppb
  • CO: 0.12 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 5.67 µg/m³
  • PM10: 6.06 µg/m³
  • O3: 0.052 ppm
  • NO2: 1.4 ppb
  • SO2: 0.2 ppb
  • CO: 0.12 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 5.58 µg/m³
  • PM10: 5.94 µg/m³
  • O3: 0.053 ppm
  • NO2: 1.3 ppb
  • SO2: 0.2 ppb
  • CO: 0.12 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 5.71 µg/m³
  • PM10: 6.16 µg/m³
  • O3: 0.054 ppm
  • NO2: 1.1 ppb
  • SO2: 0.2 ppb
  • CO: 0.12 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 5.97 µg/m³
  • PM10: 6.69 µg/m³
  • O3: 0.054 ppm
  • NO2: 1 ppb
  • SO2: 0.2 ppb
  • CO: 0.12 ppm

Health Recommendations:

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

11 PM
51 AQI
Moderate air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 6.11 µg/m³
  • PM10: 7.2 µg/m³
  • O3: 0.054 ppm
  • NO2: 0.9 ppb
  • SO2: 0.2 ppb
  • CO: 0.12 ppm

Health Recommendations:

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