Be the first to measure and contribute air quality data to your community
Air Quality 
Air Monitors
Air Purifiers
For Business
News
Support
21 people follow this city
Alton Air Quality Map
Real-time Alton air pollution map
AIR QUALITY DATA SOURCE
* AQI modeled using satellite data Learn more
Pollen
What is the pollen count in Alton today?
 | Index | Very high | |
 | Tree pollen | Low | |
 | Grass pollen | Very high | |
 | Weed pollen | None |
Weather
What is the current weather in Alton?
| Weather | Broken clouds |
| Temperature | 80.6°F |
| Humidity | 71% |
| Wind | 18.4 mp/h |
| Pressure | 29.9 Hg |
live aqi city ranking
Real-time USA city ranking
| # | city | US AQI |
|---|---|---|
| 1 | Indio, California | 90 |
| 2 | Cleveland, Ohio | 83 |
| 3 | Coachella, California | 72 |
| 4 | Palm Desert, California | 68 |
| 5 | Yucaipa, California | 60 |
| 6 | Rapid City, South Dakota | 57 |
| 7 | Auberry, California | 54 |
| 8 | Archbald, Pennsylvania | 52 |
| 9 | Redlands, California | 52 |
| 10 | Naples, Florida | 51 |
(local time)
SEE WORLD AQI RANKING
3D animated air pollution map
US AQI
39*
live AQI index
Good
Overview
What is the current air quality in Alton?
| Air pollution level | Air quality index | Main pollutant |
|---|---|---|
| Good | 39* US AQI | PM2.5 |
| Pollutants | Concentration | |
|---|---|---|
| PM2.5 | 9.4*µg/m³ | |
!
PM2.5
x1.9
PM2.5 concentration in Alton is currently 1.9 times the WHO annual air quality guideline value
Health Recommendations
What is the current air quality in Alton?
 | Enjoy outdoor activities |
 | Open your windows to bring clean, fresh air indoors GET A MONITOR |
Forecast
Alton air quality index (AQI) forecast
| Day | Pollution level | Weather | Temperature | Wind |
|---|---|---|---|---|
| Today | Good 39 AQI US |  20% | 82.4° 66.2° |  13.4 mp/h |
| Wednesday, Apr 24 | Good 39 AQI US | | 91.4° 71.6° | 17.9 mp/h |
| Thursday, Apr 25 | Good 37 AQI US | | 89.6° 71.6° | 24.6 mp/h |
| Friday, Apr 26 | Good 40 AQI US | | 93.2° 73.4° | 22.4 mp/h |
| Saturday, Apr 27 | Good 45 AQI US | | 93.2° 73.4° | 22.4 mp/h |
| Sunday, Apr 28 | Moderate 64 AQI US  | | 98.6° 75.2° | 20.1 mp/h |
| Monday, Apr 29 | Moderate 61 AQI US | | 95° 75.2° | 15.7 mp/h |
| Tuesday, Apr 30 | Moderate 57 AQI US | | 91.4° 75.2° | 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 Alton?
No locations are available.
AQI US, Metric