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 Boulder
Air quality index (AQI) and PM2.5 air pollution in Boulder
100.6K people follow this city
Boulder Air Quality Map
Real-time Boulder air pollution map
AIR QUALITY DATA CONTRIBUTORS
31 Contributors
See all
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 | Clear sky |
| Temperature | 48.2°F |
| Humidity | 65% |
| Wind | 17 mp/h |
| Pressure | 29.7 Hg |
live aqi city ranking
Real-time USA city ranking
| # | city | US AQI |
|---|---|---|
| 1 | Bryson City, North Carolina | 93 |
| 2 | Gatlinburg, Tennessee | 88 |
| 3 | Corpus Christi, Texas | 82 |
| 4 | Cullowhee, North Carolina | 72 |
| 5 | Maryville, Tennessee | 72 |
| 6 | Cleveland, Ohio | 70 |
| 7 | Knoxville, Tennessee | 66 |
| 8 | Greenville, North Carolina | 61 |
| 9 | Rock Hill, South Carolina | 60 |
| 10 | Durham, North Carolina | 59 |
(local time)
SEE WORLD AQI RANKING
3D animated air pollution map
live Boulder aqi ranking
Real-time Boulder air quality ranking
| # | station | US AQI |
|---|---|---|
| 1 | 700 Walnut Street | 14 |
| 2 | Canyon Pointe Park | 14 |
| 3 | Concord Ave | 14 |
| 4 | Grove Street | 14 |
| 5 | Thunderhead Drive | 14 |
| 6 | Grape Avenue | 13 |
| 7 | Hawthorn Avenue | 13 |
| 8 | Norlin Library | 13 |
| 9 | North Boulder | 13 |
| 10 | Boulder - CU - 2102 Athens St. | 12 |
(local time)
SEE WORLD AQI RANKING
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 | 2.9µg/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 |
|---|---|---|---|---|
| Saturday, Apr 13 | Good 21 AQI US | | 78.8° 50° |  13.4 mp/h |
| Sunday, Apr 14 | Good 21 AQI US |  | 69.8° 44.6° | 20.1 mp/h |
| Monday, Apr 15 | Good 14 AQI US | | 59° 44.6° | 24.6 mp/h |
| Today | Good 12 AQI US | 90% | 59° 44.6° | 24.6 mp/h |
| Wednesday, Apr 17 | Good 8 AQI US |  | 68° 42.8° | 17.9 mp/h |
| Thursday, Apr 18 | Good 9 AQI US |  100% | 41° 33.8° | 6.7 mp/h |
| Friday, Apr 19 | Good 11 AQI US | 100% | 37.4° 33.8° | 6.7 mp/h |
| Saturday, Apr 20 | Good 6 AQI US | 100% | 35.6° 32° | 4.5 mp/h |
| Sunday, Apr 21 | Good 7 AQI US | 50% | 57.2° 30.2° | 11.2 mp/h |
| Monday, Apr 22 | Good 8 AQI US | | 69.8° 41° | 13.4 mp/h |
Interested in hourly forecast? Get the app
News
The latest air quality news and resources.
How to best protect from air pollution?
Boulder air quality data attribution
31Contributors
Government Contributor
- Russ Stewart
1 station
- kleinp
1 station
2 Individual Contributors
- 28 Anonymous contributors
28 stations
28 Anonymous Contributors
Data validated and calibrated by IQAirWhere is the cleanest air quality in Boulder?
- Gillaspie Dr 0
- 47th Street 8
- Bean Mountain Lane 8
- Kincross Way 8
- Frontage Road 10
- Keewayden 10
- Miami Way 10
- South 42nd Street 10
- Walker Ranch, Pine Needle Notch 10
- 10th Street 11
- Dartmouth Avenue 11
- Table Mesa Court 11
- Boulder - CU - 2102 Athens St. 12
- Chautauqua Heights, Cascade Avenue 12
- Hawk Lane 12
- Kalmia Avenue 12
- Redwood & Riverside 12
- Rural North Boulder 12
- Shining Mountain Waldorf School 12
- Stony Hill Road 12
- University Hill 12
- Winds II, Valmont & 29th 12
- Grape Avenue 13
- Hawthorn Avenue 13
- Norlin Library 13
- North Boulder 13
- 700 Walnut Street 14
- Canyon Pointe Park 14
- Concord Ave 14
- Grove Street 14
- Thunderhead Drive 14
AQI US, Metric