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Air quality in California
Air quality index (AQI) and PM2.5 air pollution in California
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California Air Quality Map
Real-time California air pollution map
AIR QUALITY DATA SOURCE
* AQI modeled using satellite data Learn more
Pollen
What is the pollen count in California today?
 | Index | Very high | |
 | Tree pollen | High | |
 | Grass pollen | Very high | |
 | Weed pollen | None |
Source: tomorrow.io
Weather
What is the current weather in California?
| Weather | Scattered clouds |
| Temperature | 71.6°F |
| Humidity | 53% |
| Wind | 6 mp/h |
| Pressure | 29.9 Hg |
live aqi city ranking
Real-time USA city ranking
| # | city | US AQI |
|---|---|---|
| 1 | Bethlehem, Pennsylvania | 87 |
| 2 | Allentown, Pennsylvania | 83 |
| 3 | Mecca, California | 74 |
| 4 | Coopersburg, Pennsylvania | 72 |
| 5 | Quakertown, Pennsylvania | 72 |
| 6 | Marana, Arizona | 69 |
| 7 | Philadelphia, Pennsylvania | 68 |
| 8 | North Hollywood, California | 67 |
| 9 | San Gabriel, California | 67 |
| 10 | Casa Grande, Arizona | 65 |
(local time)
SEE WORLD AQI RANKING
3D animated air pollution map
US AQI
14*
live AQI index
Good
Overview
What is the current air quality in California?
| Air pollution level | Air quality index | Main pollutant |
|---|---|---|
| Good | 14* US AQI | PM2.5 |
| Pollutants | Concentration | |
|---|---|---|
| PM2.5 | 3.4*µg/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 |
|---|---|---|---|---|
| Today | Good 14 AQI US |  40% | 77° 53.6° |  13.4 mp/h |
| Wednesday, May 1 | Good 33 AQI US | 90% | 75.2° 57.2° | 11.2 mp/h |
| Thursday, May 2 | Good 45 AQI US | 100% | 71.6° 60.8° | 15.7 mp/h |
| Friday, May 3 | Good 27 AQI US | 80% | 69.8° 53.6° | 11.2 mp/h |
| Saturday, May 4 | Good 22 AQI US | 100% | 69.8° 55.4° | 11.2 mp/h |
| Sunday, May 5 | Good 43 AQI US | 100% | 64.4° 50° | 15.7 mp/h |
| Monday, May 6 | Good 47 AQI US | 100% | 78.8° 59° | 17.9 mp/h |
Interested in hourly forecast? Get the app
News
The latest air quality news and resources.
Where is the cleanest air quality in California?
No locations are available.
AQI US, Metric