Hourly Weather | Today Monday, January 5, 2026
Pasadena, California
7 AM
Cloudy Weather
50°
Feels Like 50°
34
Humidity: 93%
Wind: 5 mph
UV Index: 0
8 AM
Cloudy Weather
52°
Feels Like 52°
34
Humidity: 88%
Wind: 5 mph
UV Index: 0
9 AM
Cloudy Weather
54°
Feels Like 54°
37
Humidity: 84%
Wind: 5 mph
UV Index: 1
10 AM
Cloudy Weather
55°
Feels Like 55°
43
Humidity: 79%
Wind: 6 mph
UV Index: 1
11 AM
Cloudy Weather
57°
Feels Like 57°
47
Humidity: 73%
Wind: 6 mph
UV Index: 1
12 PM
Rainy Weather
59°
Feels Like 55°
51
Humidity: 71%
Wind: 6 mph
UV Index: 1
1 PM
Cloudy Weather
61°
Feels Like 61°
47
Humidity: 69%
Wind: 6 mph
UV Index: 1
2 PM
Cloudy Weather
61°
Feels Like 61°
47
Humidity: 66%
Wind: 6 mph
UV Index: 1
3 PM
Rainy Weather
61°
Feels Like 55°
51
Humidity: 70%
Wind: 6 mph
UV Index: 0
4 PM
Cloudy Weather
59°
Feels Like 57°
40
Humidity: 73%
Wind: 6 mph
UV Index: 0
5 PM
Cloudy Night
57°
Feels Like 55°
34
Humidity: 77%
Wind: 6 mph
UV Index: 0
6 PM
Cloudy Night
55°
Feels Like 55°
29
Humidity: 82%
Wind: 5 mph
UV Index: 0
7 PM
Cloudy Night
55°
Feels Like 54°
20
Humidity: 83%
Wind: 5 mph
UV Index: 0
8 PM
Cloudy Night
54°
Feels Like 54°
20
Humidity: 85%
Wind: 5 mph
UV Index: 0
9 PM
Cloudy Night
54°
Feels Like 54°
20
Humidity: 84%
Wind: 5 mph
UV Index: 0
10 PM
Cloudy Weather
54°
Feels Like 52°
20
Humidity: 84%
Wind: 5 mph
UV Index: 0
11 PM
Cloudy Night
54°
Feels Like 52°
20
Humidity: 83%
Wind: 5 mph
UV Index: 0

Hourly Air Quality Forecast - AQI (US EPA)

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

Pollutant Concentrations:

  • PM2.5: 0.5 µg/m³
  • PM10: 0.95 µg/m³
  • O3: 0.044 ppm
  • NO2: 0.1 ppb
  • SO2: 0 ppb
  • CO: 0.10 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 0.5 µg/m³
  • PM10: 0.85 µg/m³
  • O3: 0.044 ppm
  • NO2: 0.1 ppb
  • SO2: 0 ppb
  • CO: 0.10 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 0.5 µg/m³
  • PM10: 0.77 µg/m³
  • O3: 0.044 ppm
  • NO2: 0.1 ppb
  • SO2: 0 ppb
  • CO: 0.10 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 0.5 µg/m³
  • PM10: 0.74 µg/m³
  • O3: 0.044 ppm
  • NO2: 0.1 ppb
  • SO2: 0 ppb
  • CO: 0.10 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: 0.5 µg/m³
  • PM10: 0.74 µg/m³
  • O3: 0.045 ppm
  • NO2: 0.1 ppb
  • SO2: 0 ppb
  • CO: 0.10 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 0.5 µg/m³
  • PM10: 0.77 µg/m³
  • O3: 0.045 ppm
  • NO2: 0.1 ppb
  • SO2: 0 ppb
  • CO: 0.10 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 0.5 µg/m³
  • PM10: 0.78 µg/m³
  • O3: 0.045 ppm
  • NO2: 0.1 ppb
  • SO2: 0 ppb
  • CO: 0.10 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 0.5 µg/m³
  • PM10: 0.78 µg/m³
  • O3: 0.045 ppm
  • NO2: 0.1 ppb
  • SO2: 0 ppb
  • CO: 0.10 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 0.5 µg/m³
  • PM10: 0.79 µg/m³
  • O3: 0.045 ppm
  • NO2: 0.1 ppb
  • SO2: 0 ppb
  • CO: 0.10 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 0.5 µg/m³
  • PM10: 0.79 µg/m³
  • O3: 0.045 ppm
  • NO2: 0.1 ppb
  • SO2: 0 ppb
  • CO: 0.10 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 0.5 µg/m³
  • PM10: 0.78 µg/m³
  • O3: 0.045 ppm
  • NO2: 0.1 ppb
  • SO2: 0 ppb
  • CO: 0.10 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: 0.5 µg/m³
  • PM10: 0.77 µg/m³
  • O3: 0.046 ppm
  • NO2: 0.1 ppb
  • SO2: 0 ppb
  • CO: 0.10 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 0.5 µg/m³
  • PM10: 0.76 µg/m³
  • O3: 0.046 ppm
  • NO2: 0.1 ppb
  • SO2: 0 ppb
  • CO: 0.10 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 0.5 µg/m³
  • PM10: 0.75 µg/m³
  • O3: 0.046 ppm
  • NO2: 0.1 ppb
  • SO2: 0 ppb
  • CO: 0.10 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 0.5 µg/m³
  • PM10: 0.76 µg/m³
  • O3: 0.046 ppm
  • NO2: 0.1 ppb
  • SO2: 0 ppb
  • CO: 0.10 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 0.5 µg/m³
  • PM10: 0.8 µg/m³
  • O3: 0.047 ppm
  • NO2: 0.1 ppb
  • SO2: 0 ppb
  • CO: 0.10 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 0.5 µg/m³
  • PM10: 0.86 µg/m³
  • O3: 0.047 ppm
  • NO2: 0.1 ppb
  • SO2: 0 ppb
  • CO: 0.10 ppm

Health Recommendations:

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