Hourly Weather | Today Friday, October 31, 2025
Irvine, California
2 PM
Sunny Weather
73°
Feels Like 75°
0
Humidity: 62%
Wind: 7 mph
UV Index: 4
3 PM
Cloudy Weather
73°
Feels Like 75°
0
Humidity: 60%
Wind: 7 mph
UV Index: 3
4 PM
Cloudy Weather
73°
Feels Like 73°
0
Humidity: 60%
Wind: 7 mph
UV Index: 2
5 PM
Cloudy Weather
72°
Feels Like 70°
0
Humidity: 67%
Wind: 7 mph
UV Index: 1
6 PM
Cloudy Weather
68°
Feels Like 66°
0
Humidity: 72%
Wind: 6 mph
UV Index: 0
7 PM
Cloudy Night
66°
Feels Like 64°
0
Humidity: 80%
Wind: 5 mph
UV Index: 0
8 PM
Cloudy Night
64°
Feels Like 64°
0
Humidity: 81%
Wind: 5 mph
UV Index: 0
9 PM
Cloudy Night
63°
Feels Like 63°
0
Humidity: 89%
Wind: 4 mph
UV Index: 0
10 PM
Cloudy Night
59°
Feels Like 59°
0
Humidity: 95%
Wind: 4 mph
UV Index: 0
11 PM
Cloudy Night
57°
Feels Like 57°
0
Humidity: 100%
Wind: 4 mph
UV Index: 0

Hourly Air Quality Forecast - AQI (US EPA)

2 PM
44 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 10.64 µg/m³
  • PM10: 29.05 µg/m³
  • O3: 0.046 ppm
  • NO2: 0.2 ppb
  • SO2: 0.3 ppb
  • CO: 0.10 ppm

Health Recommendations:

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

3 PM
47 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 11.26 µg/m³
  • PM10: 29.89 µg/m³
  • O3: 0.047 ppm
  • NO2: 0.2 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
50 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 11.9 µg/m³
  • PM10: 30.98 µg/m³
  • O3: 0.048 ppm
  • NO2: 0.2 ppb
  • SO2: 0.3 ppb
  • CO: 0.10 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 12.43 µg/m³
  • PM10: 31.79 µg/m³
  • O3: 0.048 ppm
  • NO2: 0.2 ppb
  • SO2: 0.3 ppb
  • CO: 0.11 ppm

Health Recommendations:

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

6 PM
52 AQI
Moderate air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 12.95 µg/m³
  • PM10: 32.38 µg/m³
  • O3: 0.049 ppm
  • NO2: 0.3 ppb
  • SO2: 0.3 ppb
  • CO: 0.11 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 13.39 µg/m³
  • PM10: 32.72 µg/m³
  • O3: 0.049 ppm
  • NO2: 0.3 ppb
  • SO2: 0.3 ppb
  • CO: 0.11 ppm

Health Recommendations:

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

8 PM
54 AQI
Moderate air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 13.72 µg/m³
  • PM10: 32.88 µg/m³
  • O3: 0.049 ppm
  • NO2: 0.3 ppb
  • SO2: 0.3 ppb
  • CO: 0.11 ppm

Health Recommendations:

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

9 PM
54 AQI
Moderate air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 13.98 µg/m³
  • PM10: 32.97 µg/m³
  • O3: 0.049 ppm
  • NO2: 0.3 ppb
  • SO2: 0.3 ppb
  • CO: 0.11 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 14.13 µg/m³
  • PM10: 32.89 µg/m³
  • O3: 0.049 ppm
  • NO2: 0.3 ppb
  • SO2: 0.3 ppb
  • CO: 0.11 ppm

Health Recommendations:

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

11 PM
55 AQI
Moderate air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 14.16 µg/m³
  • PM10: 32.62 µg/m³
  • O3: 0.049 ppm
  • NO2: 0.3 ppb
  • SO2: 0.3 ppb
  • CO: 0.11 ppm

Health Recommendations:

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