Get a monitor and contributor to air quality data in your city.
Air Quality 
Air Monitors
Air Purifiers
For Business
News
Support
Air quality in California
Air quality index (AQI) and PM2.5 air pollution in California
20 people follow this city
California Air Quality Map
Real-time California air pollution map
AIR QUALITY DATA CONTRIBUTORS
Anonymous contributor
See all
Pollen
What is the pollen count in California today?
 | Index | Very high | |
 | Tree pollen | Very high | |
 | Grass pollen | Moderate | |
 | Weed pollen | None |
Source: tomorrow.io
Weather
What is the current weather in California?
| Weather | Clear sky |
| Temperature | 62.6°F |
| Humidity | 70% |
| Wind | 6.9 mp/h |
| Pressure | 30.2 Hg |
live aqi city ranking
Real-time USA city ranking
| # | city | US AQI |
|---|---|---|
| 1 |  Claremont, California | 87 |
| 2 | Glendora, California | 86 |
| 3 | Corpus Christi, Texas | 84 |
| 4 | Redlands, California | 83 |
| 5 | Glendale, California | 81 |
| 6 | Pasadena, California | 80 |
| 7 | San Bernardino, California | 80 |
| 8 | San Fernando, California | 80 |
| 9 | Mount Lebanon, Pennsylvania | 78 |
| 10 | La Verne, California | 77 |
(local time)
SEE WORLD AQI RANKING
3D animated air pollution map
live California aqi ranking
Real-time California air quality ranking
| # | station | US AQI |
|---|---|---|
| 1 | Cal Acres Lane | 37 |
| 2 | EES Front Left Sensor | 15 |
(local time)
SEE WORLD AQI RANKING
US AQI
24
live AQI index
Good
Overview
What is the current air quality in California?
| Air pollution level | Air quality index | Main pollutant |
|---|---|---|
| Good | 24 US AQI | PM2.5 |
| Pollutants | Concentration | |
|---|---|---|
| PM2.5 | 4.3µg/m³ | |
✓
PM2.5 concentration in California air currently meets the WHO annual air quality guideline value
Health Recommendations
What is the current air quality in California?
 | Enjoy outdoor activities |
 | Open your windows to bring clean, fresh air indoors GET A MONITOR |
Forecast
California air quality index (AQI) forecast
| Day | Pollution level | Weather | Temperature | Wind |
|---|---|---|---|---|
| Wednesday, May 29 | Good 21 AQI US | | 71.6° 51.8° |  8.9 mp/h |
| Thursday, May 30 | Good 29 AQI US |  | 71.6° 51.8° | 11.2 mp/h |
| Friday, May 31 | Good 31 AQI US |  | 78.8° 55.4° | 6.7 mp/h |
| Today | Good 24 AQI US | | 78.8° 55.4° | 6.7 mp/h |
| Sunday, Jun 2 | Moderate 53 AQI US  | 50% | 80.6° 59° | 8.9 mp/h |
| Monday, Jun 3 | Moderate 54 AQI US | 50% | 77° 62.6° | 6.7 mp/h |
| Tuesday, Jun 4 | Moderate 57 AQI US | | 75.2° 59° | 8.9 mp/h |
| Wednesday, Jun 5 | Moderate 66 AQI US | 100% | 64.4° 57.2° | 8.9 mp/h |
| Thursday, Jun 6 | Moderate 55 AQI US | 100% | 78.8° 60.8° | 11.2 mp/h |
| Friday, Jun 7 | Moderate 66 AQI US | 90% | 80.6° 62.6° | 13.4 mp/h |
Interested in hourly forecast? Get the app
News
The latest air quality news and resources.
How to best protect from air pollution?
California air quality data attribution
2Contributors
- 2 Anonymous contributors
2 stations
2 Anonymous Contributors
1 Data source
Data validated and calibrated by IQAirWhere is the cleanest air quality in California?
AQI US, Metric