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 Lake San Marcos
Air quality index (AQI) and PM2.5 air pollution in Lake San Marcos
352 people follow this city
Lake San Marcos Air Quality Map
Real-time Lake San Marcos air pollution map
AIR QUALITY DATA CONTRIBUTORS
Anonymous contributor
See all
Pollen
What is the pollen count in Lake San Marcos today?
 | Index | Low | |
 | Tree pollen | Low | |
 | Grass pollen | Low | |
 | Weed pollen | None |
Source: tomorrow.io
Weather
What is the current weather in Lake San Marcos?
| Weather | Broken clouds |
| Temperature | 55.4°F |
| Humidity | 84% |
| Wind | 5.7 mp/h |
| Pressure | 30.1 Hg |
live aqi city ranking
Real-time USA city ranking
| # | city | US AQI |
|---|---|---|
| 1 | Palm Desert, California | 175 |
| 2 | Conway, South Carolina | 70 |
| 3 | Pahrump, Nevada | 70 |
| 4 | Rock Hill, South Carolina | 69 |
| 5 | Urbana, Illinois | 63 |
| 6 | Decatur, Georgia | 61 |
| 7 | Athens, Georgia | 60 |
| 8 | Marietta, Georgia | 60 |
| 9 | Champaign, Illinois | 59 |
| 10 | Gary, Indiana | 57 |
(local time)
SEE WORLD AQI RANKING
3D animated air pollution map
live Lake San Marcos aqi ranking
Real-time Lake San Marcos air quality ranking
| # | station | US AQI |
|---|---|---|
| 1 | La Reina Drive | 2 |
(local time)
SEE WORLD AQI RANKING
US AQI
2
live AQI index
Good
Overview
What is the current air quality in Lake San Marcos?
| Air pollution level | Air quality index | Main pollutant |
|---|---|---|
| Good | 2 US AQI | PM2.5 |
| Pollutants | Concentration | |
|---|---|---|
| PM2.5 | 0.5µg/m³ | |
✓
PM2.5 concentration in Lake San Marcos air currently meets the WHO annual air quality guideline value
Health Recommendations
What is the current air quality in Lake San Marcos?
 | Enjoy outdoor activities |
 | Open your windows to bring clean, fresh air indoors GET A MONITOR |
Forecast
Lake San Marcos air quality index (AQI) forecast
| Day | Pollution level | Weather | Temperature | Wind |
|---|---|---|---|---|
| Monday, Apr 22 | Good 8 AQI US | | 62.6° 53.6° |  11.2 mp/h |
| Tuesday, Apr 23 | Good 5 AQI US |  | 62.6° 55.4° | 11.2 mp/h |
| Wednesday, Apr 24 | Good 5 AQI US |  | 60.8° 53.6° | 11.2 mp/h |
| Today | Good 2 AQI US | 40% | 60.8° 53.6° | 11.2 mp/h |
| Friday, Apr 26 | Good 23 AQI US | | 60.8° 55.4° | 13.4 mp/h |
| Saturday, Apr 27 | Good 17 AQI US |  | 64.4° 53.6° | 11.2 mp/h |
| Sunday, Apr 28 | Good 22 AQI US | | 66.2° 51.8° | 8.9 mp/h |
| Monday, Apr 29 | Good 18 AQI US | | 68° 53.6° | 8.9 mp/h |
| Tuesday, Apr 30 | Good 18 AQI US | | 68° 55.4° | 8.9 mp/h |
| Wednesday, May 1 | Good 16 AQI US | | 66.2° 55.4° | 8.9 mp/h |
Interested in hourly forecast? Get the app
News
The latest air quality news and resources.
Lake San Marcos air quality data attribution
1Contributor
- 1 Anonymous contributor
1 station
Anonymous Contributor
1 Data source
Data validated and calibrated by IQAirWhere is the cleanest air quality in Lake San Marcos?
AQI US, Metric