Hourly Weather | Today Tuesday, April 7, 2026
El Cajon, California
12 PM
Cloudy Weather
75°
Feels Like 82°
0
Humidity: 46%
UV Index: 8
Wind: 8 mph
1 PM
Cloudy Weather
79°
Feels Like 84°
0
Humidity: 45%
UV Index: 9
Wind: 9 mph
2 PM
Cloudy Weather
81°
Feels Like 84°
0
Humidity: 42%
UV Index: 8
Wind: 9 mph
3 PM
Cloudy Weather
79°
Feels Like 82°
0
Humidity: 43%
UV Index: 6
Wind: 9 mph
4 PM
Cloudy Weather
79°
Feels Like 81°
0
Humidity: 44%
UV Index: 4
Wind: 9 mph
5 PM
Cloudy Weather
75°
Feels Like 75°
0
Humidity: 46%
UV Index: 2
Wind: 8 mph
6 PM
Cloudy Weather
73°
Feels Like 73°
0
Humidity: 50%
UV Index: 1
Wind: 8 mph
7 PM
Cloudy Weather
72°
Feels Like 70°
0
Humidity: 57%
UV Index: 0
Wind: 7 mph
8 PM
Cloudy Night
68°
Feels Like 64°
0
Humidity: 66%
UV Index: 0
Wind: 6 mph
9 PM
Cloudy Night
64°
Feels Like 63°
0
Humidity: 75%
UV Index: 0
Wind: 6 mph
10 PM
Cloudy Night
61°
Feels Like 61°
0
Humidity: 85%
UV Index: 0
Wind: 5 mph
11 PM
Cloudy Night
57°
Feels Like 55°
0
Humidity: 96%
UV Index: 0
Wind: 5 mph

Hourly Air Quality Forecast - AQI (US EPA)

12 PM
53 AQI
Moderate air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 6.46 µg/m³
  • PM10: 21.41 µg/m³
  • O3: 0.055 ppm
  • NO2: 0.1 ppb
  • SO2: 0.4 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.

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

Pollutant Concentrations:

  • PM2.5: 6.64 µg/m³
  • PM10: 21.72 µg/m³
  • O3: 0.054 ppm
  • NO2: 0.1 ppb
  • SO2: 0.4 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.

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

Pollutant Concentrations:

  • PM2.5: 6.9 µg/m³
  • PM10: 22.09 µg/m³
  • O3: 0.054 ppm
  • NO2: 0.1 ppb
  • SO2: 0.4 ppb
  • CO: 0.11 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 7.24 µg/m³
  • PM10: 22.53 µg/m³
  • O3: 0.053 ppm
  • NO2: 0.1 ppb
  • SO2: 0.4 ppb
  • CO: 0.11 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 7.55 µg/m³
  • PM10: 23.04 µg/m³
  • O3: 0.052 ppm
  • NO2: 0.1 ppb
  • SO2: 0.4 ppb
  • CO: 0.11 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 7.82 µg/m³
  • PM10: 23.56 µg/m³
  • O3: 0.051 ppm
  • NO2: 0.1 ppb
  • SO2: 0.4 ppb
  • CO: 0.11 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: 8.03 µg/m³
  • PM10: 23.99 µg/m³
  • O3: 0.051 ppm
  • NO2: 0.2 ppb
  • SO2: 0.4 ppb
  • CO: 0.11 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: 8.03 µg/m³
  • PM10: 23.95 µg/m³
  • O3: 0.051 ppm
  • NO2: 0.2 ppb
  • SO2: 0.4 ppb
  • CO: 0.11 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 7.69 µg/m³
  • PM10: 23.07 µg/m³
  • O3: 0.052 ppm
  • NO2: 0.2 ppb
  • SO2: 0.4 ppb
  • CO: 0.11 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: O3
Details

Pollutant Concentrations:

  • PM2.5: 7.24 µg/m³
  • PM10: 22.11 µg/m³
  • O3: 0.052 ppm
  • NO2: 0.2 ppb
  • SO2: 0.4 ppb
  • CO: 0.11 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 6.78 µg/m³
  • PM10: 21.28 µg/m³
  • O3: 0.052 ppm
  • NO2: 0.2 ppb
  • SO2: 0.4 ppb
  • CO: 0.11 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 6.37 µg/m³
  • PM10: 20.64 µg/m³
  • O3: 0.052 ppm
  • NO2: 0.2 ppb
  • SO2: 0.4 ppb
  • CO: 0.11 ppm

Health Recommendations:

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