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 Rancho Santa Margarita
Air quality index (AQI) and PM2.5 air pollution in Rancho Santa Margarita
15.7K people follow this city
Rancho Santa Margarita Air Quality Map
Real-time Rancho Santa Margarita air pollution map
Pollen
What is the pollen count in Rancho Santa Margarita today?
 | Index | Low | |
 | Tree pollen | Low | |
 | Grass pollen | None | |
 | Weed pollen | None |
Source: tomorrow.io
Weather
What is the current weather in Rancho Santa Margarita?
| Weather | Clear sky |
| Temperature | 62.6°F |
| Humidity | 78% |
| Wind | 4 mp/h |
| Pressure | 29.9 Hg |
live aqi city ranking
Real-time USA city ranking
| # | city | US AQI |
|---|---|---|
| 1 | Bethlehem, Pennsylvania | 91 |
| 2 | Mecca, California | 83 |
| 3 | Casa Grande, Arizona | 82 |
| 4 | Allentown, Pennsylvania | 79 |
| 5 | San Gabriel, California | 74 |
| 6 | Coopersburg, Pennsylvania | 73 |
| 7 | Quakertown, Pennsylvania | 72 |
| 8 | Marana, Arizona | 69 |
| 9 | Lewisville, Texas | 66 |
| 10 | Baton Rouge, Louisiana | 64 |
(local time)
SEE WORLD AQI RANKING
3D animated air pollution map
live Rancho Santa Margarita aqi ranking
Real-time Rancho Santa Margarita air quality ranking
| # | station | US AQI |
|---|---|---|
| 1 | Alma Aldea | 50 |
(local time)
SEE WORLD AQI RANKING
US AQI
50
live AQI index
Good
Overview
What is the current air quality in Rancho Santa Margarita?
| Air pollution level | Air quality index | Main pollutant |
|---|---|---|
| Good | 50 US AQI | PM2.5 |
| Pollutants | Concentration | |
|---|---|---|
| PM2.5 | 12µg/m³ | |
!
PM2.5
x2.4
PM2.5 concentration in Rancho Santa Margarita is currently 2.4 times the WHO annual air quality guideline value
Health Recommendations
What is the current air quality in Rancho Santa Margarita?
 | Enjoy outdoor activities |
 | Open your windows to bring clean, fresh air indoors GET A MONITOR |
Forecast
Rancho Santa Margarita air quality index (AQI) forecast
| Day | Pollution level | Weather | Temperature | Wind |
|---|---|---|---|---|
| Saturday, Apr 27 | Good 29 AQI US | | 69.8° 51.8° |  6.7 mp/h |
| Sunday, Apr 28 | Good 41 AQI US | | 71.6° 53.6° | 6.7 mp/h |
| Monday, Apr 29 | Good 42 AQI US | | 71.6° 55.4° | 6.7 mp/h |
| Today | Good 50 AQI US | | 71.6° 55.4° | 6.7 mp/h |
| Wednesday, May 1 | Good 32 AQI US | | 68° 53.6° | 6.7 mp/h |
| Thursday, May 2 | Good 31 AQI US | | 71.6° 53.6° | 6.7 mp/h |
| Friday, May 3 | Moderate 51 AQI US  | | 71.6° 53.6° | 6.7 mp/h |
| Saturday, May 4 | Moderate 57 AQI US |  30% | 66.2° 53.6° | 11.2 mp/h |
| Sunday, May 5 | Good 18 AQI US | 100% | 57.2° 50° | 20.1 mp/h |
| Monday, May 6 | Good 5 AQI US | 30% | 62.6° 50° | 6.7 mp/h |
Interested in hourly forecast? Get the app
News
The latest air quality news and resources.
Rancho Santa Margarita air quality data attribution
1Contributor
- RSM1
1 station
Individual Contributor
1 Data source
Data validated and calibrated by IQAirWhere is the cleanest air quality in Rancho Santa Margarita?
AQI US, Metric