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Air quality in San Marcos
Air quality index (AQI) and PM2.5 air pollution in San Marcos
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San Marcos Air Quality Map
Real-time San Marcos air pollution map
AIR QUALITY DATA CONTRIBUTORS
Texas Commission on Environmental Quality (TCEQ)
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Pollen
What is the pollen count in San Marcos today?
 | Index | Very high | |
 | Tree pollen | Very high | |
 | Grass pollen | Low | |
 | Weed pollen | None |
Source: tomorrow.io
Weather
What is the current weather in San Marcos?
| Weather | Clear sky |
| Temperature | 86°F |
| Humidity | 48% |
| Wind | 9.2 mp/h |
| Pressure | 29.8 Hg |
live aqi city ranking
Real-time USA city ranking
| # | city | US AQI |
|---|---|---|
| 1 |  Mecca, California | 154 |
| 2 | Coachella, California | 143 |
| 3 | Tulsa, Oklahoma | 88 |
| 4 | Indio, California | 85 |
| 5 | Oklahoma City, Oklahoma | 84 |
| 6 | Fort Thompson, South Dakota | 82 |
| 7 | Wichita, Kansas | 80 |
| 8 | Colville, Washington | 78 |
| 9 | Edmond, Oklahoma | 77 |
| 10 | Blaine, Minnesota | 76 |
(local time)
SEE WORLD AQI RANKING
3D animated air pollution map
live San Marcos aqi ranking
Real-time San Marcos air quality ranking
| # | station | US AQI |
|---|---|---|
| 1 | CAPCOG San Marcos Staples Road | 35 |
(local time)
SEE WORLD AQI RANKING
US AQI
26
live AQI index
Good
Overview
What is the current air quality in San Marcos?
| Air pollution level | Air quality index | Main pollutant |
|---|---|---|
| Good | 26 US AQI | PM2.5 |
| Pollutants | Concentration | |
|---|---|---|
| PM2.5 | 4.8µg/m³ | |
✓
PM2.5 concentration in San Marcos air currently meets the WHO annual air quality guideline value
Health Recommendations
What is the current air quality in San Marcos?
 | Enjoy outdoor activities |
 | Open your windows to bring clean, fresh air indoors GET A MONITOR |
Forecast
San Marcos air quality index (AQI) forecast
| Day | Pollution level | Weather | Temperature | Wind |
|---|---|---|---|---|
| Sunday, May 12 | Good 48 AQI US |  | 80.6° 66.2° |  8.9 mp/h |
| Monday, May 13 | Good 36 AQI US | | 89.6° 64.4° | 6.7 mp/h |
| Tuesday, May 14 | Good 36 AQI US |  | 87.8° 66.2° | 13.4 mp/h |
| Today | Good 26 AQI US | | 87.8° 66.2° | 13.4 mp/h |
| Thursday, May 16 | Moderate 62 AQI US  | 100% | 82.4° 66.2° | 11.2 mp/h |
| Friday, May 17 | Moderate 68 AQI US | 80% | 89.6° 66.2° | 15.7 mp/h |
| Saturday, May 18 | Moderate 69 AQI US | | 96.8° 68° | 8.9 mp/h |
| Sunday, May 19 | Moderate 61 AQI US | | 93.2° 71.6° | 11.2 mp/h |
| Monday, May 20 | Moderate 61 AQI US |  | 91.4° 68° | 13.4 mp/h |
| Tuesday, May 21 | Moderate 61 AQI US | | 96.8° 73.4° | 17.9 mp/h |
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News
The latest air quality news and resources.
How to best protect from air pollution?
San Marcos air quality data attribution
1Contributor
Government Contributor
2 Data sources
Where is the cleanest air quality in San Marcos?
AQI US, Metric