Hourly Weather | Today Thursday, February 5, 2026
Pasadena, California
7 PM
Cloudy Night
70°
Feels Like 66°
0
Humidity: 46%
UV Index: 0
Wind: 6 mph
8 PM
Cloudy Night
66°
Feels Like 64°
0
Humidity: 52%
UV Index: 0
Wind: 6 mph
9 PM
Cloudy Night
64°
Feels Like 63°
0
Humidity: 59%
UV Index: 0
Wind: 5 mph
10 PM
Cloudy Night
61°
Feels Like 61°
0
Humidity: 65%
UV Index: 0
Wind: 5 mph
11 PM
Cloudy Night
59°
Feels Like 59°
0
Humidity: 65%
UV Index: 0
Wind: 5 mph

Hourly Air Quality Forecast - AQI (US EPA)

7 PM
155 AQI
Unhealthy air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 64.77 µg/m³
  • PM10: 89.08 µg/m³
  • O3: 0.060 ppm
  • NO2: 0.3 ppb
  • SO2: 0.1 ppb
  • CO: 0.30 ppm

Health Recommendations:

Everyone may begin to experience health effects; sensitive groups may experience more serious effects.

8 PM
154 AQI
Unhealthy air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 63.36 µg/m³
  • PM10: 90.92 µg/m³
  • O3: 0.060 ppm
  • NO2: 0.3 ppb
  • SO2: 0.1 ppb
  • CO: 0.28 ppm

Health Recommendations:

Everyone may begin to experience health effects; sensitive groups may experience more serious effects.

9 PM
153 AQI
Unhealthy air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 60.36 µg/m³
  • PM10: 89.76 µg/m³
  • O3: 0.059 ppm
  • NO2: 0.3 ppb
  • SO2: 0.1 ppb
  • CO: 0.27 ppm

Health Recommendations:

Everyone may begin to experience health effects; sensitive groups may experience more serious effects.

10 PM
150 AQI
Unhealthy air quality for sensitive groups Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 56.11 µg/m³
  • PM10: 86.16 µg/m³
  • O3: 0.058 ppm
  • NO2: 0.2 ppb
  • SO2: 0.1 ppb
  • CO: 0.25 ppm

Health Recommendations:

Members of sensitive groups may experience health effects. The general public is less likely to be affected.

11 PM
137 AQI
Unhealthy air quality for sensitive groups Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 50.1 µg/m³
  • PM10: 79.93 µg/m³
  • O3: 0.057 ppm
  • NO2: 0.2 ppb
  • SO2: 0.1 ppb
  • CO: 0.23 ppm

Health Recommendations:

Members of sensitive groups may experience health effects. The general public is less likely to be affected.