Be the first to measure and contribute air quality data to your community
Air Quality 
Air Monitors
Air Purifiers
For Business
News
Support
Air quality in Boulder
Air quality index (AQI) and PM2.5 air pollution in Boulder
211 people follow this city
Boulder Air Quality Map
Real-time Boulder air pollution map
AIR QUALITY DATA SOURCE
* AQI modeled using satellite data Learn more
Pollen
What is the pollen count in Boulder today?
 | Index | Very high | |
 | Tree pollen | Very high | |
 | Grass pollen | Low | |
 | Weed pollen | None |
Weather
What is the current weather in Boulder?
| Weather | Broken clouds |
| Temperature | 39.2°F |
| Humidity | 48% |
| Wind | 3.6 mp/h |
| Pressure | 30.1 Hg |
live aqi city ranking
Real-time USA city ranking
| # | city | US AQI |
|---|---|---|
| 1 | Palm Desert, California | 151 |
| 2 | Casa Grande, Arizona | 84 |
| 3 | Coachella, California | 76 |
| 4 | Marana, Arizona | 67 |
| 5 | Cleveland, Ohio | 64 |
| 6 | Thermal, California | 63 |
| 7 | Port Arthur, Texas | 58 |
| 8 | Oakhurst, California | 57 |
| 9 | Barstow, California | 56 |
| 10 | Campo, California | 55 |
(local time)
SEE WORLD AQI RANKING
3D animated air pollution map
US AQI
12*
live AQI index
Good
Overview
What is the current air quality in Boulder?
| Air pollution level | Air quality index | Main pollutant |
|---|---|---|
| Good | 12* US AQI | PM2.5 |
| Pollutants | Concentration | |
|---|---|---|
| PM2.5 | 2.8*µg/m³ | |
✓
PM2.5 concentration in Boulder air currently meets the WHO annual air quality guideline value
Health Recommendations
What is the current air quality in Boulder?
 | Enjoy outdoor activities |
 | Open your windows to bring clean, fresh air indoors GET A MONITOR |
Forecast
Boulder air quality index (AQI) forecast
| Day | Pollution level | Weather | Temperature | Wind |
|---|---|---|---|---|
| Today | Good 12 AQI US | | 55.4° 33.8° |  6.7 mp/h |
| Wednesday, Apr 24 | Good 11 AQI US |  | 66.2° 39.2° | 8.9 mp/h |
| Thursday, Apr 25 | Good 16 AQI US |  60% | 59° 42.8° | 8.9 mp/h |
| Friday, Apr 26 | Good 8 AQI US |  100% | 42.8° 37.4° | 4.5 mp/h |
| Saturday, Apr 27 | Good 4 AQI US | 100% | 41° 35.6° | 4.5 mp/h |
| Sunday, Apr 28 | Good 4 AQI US | 50% | 50° 33.8° | 8.9 mp/h |
| Monday, Apr 29 | Good 4 AQI US | 70% | 50° 33.8° | 11.2 mp/h |
Interested in hourly forecast? Get the app
News
The latest air quality news and resources.
Where is the cleanest air quality in Boulder?
No locations are available.
AQI US, Metric