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Air quality in Boulder
Air quality index (AQI) and PM2.5 air pollution in Boulder
102.3K people follow this city
Boulder Air Quality Map
Real-time Boulder air pollution map
AIR QUALITY DATA CONTRIBUTORS
32 Contributors
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Pollen
What is the pollen count in Boulder today?
 | Index | Moderate | |
 | Tree pollen | Moderate | |
 | Grass pollen | Low | |
 | Weed pollen | None |
Source: tomorrow.io
Weather
What is the current weather in Boulder?
| Weather | Clear sky |
| Temperature | 48.2°F |
| Humidity | 45% |
| Wind | 6.9 mp/h |
| Pressure | 29.7 Hg |
live aqi city ranking
Real-time USA city ranking
| # | city | US AQI |
|---|---|---|
| 1 |  Mecca, California | 88 |
| 2 | Corpus Christi, Texas | 86 |
| 3 | Coachella, California | 84 |
| 4 | Thermal, California | 75 |
| 5 | Pahrump, Nevada | 69 |
| 6 | Campo, California | 68 |
| 7 | Palm Desert, California | 68 |
| 8 | Yucaipa, California | 68 |
| 9 | Boerne, Texas | 66 |
| 10 | Trussville, Alabama | 66 |
(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 | Hawk Lane | 28 |
| 2 | Norlin Library | 28 |
| 3 | Boulder - CU - 2102 Athens St. | 27 |
| 4 | 700 Walnut Street | 25 |
| 5 | Grove Street | 25 |
| 6 | Thunderhead Drive | 25 |
| 7 | 10th Street | 24 |
| 8 | Boulder Reservoir | 24 |
| 9 | Flagstaff Road | 24 |
| 10 | Bean Mountain Lane | 23 |
(local time)
SEE WORLD AQI RANKING
US AQI
20
live AQI index
Good
Overview
What is the current air quality in Boulder?
| Air pollution level | Air quality index | Main pollutant |
|---|---|---|
| Good | 20 US AQI | PM2.5 |
| Pollutants | Concentration | |
|---|---|---|
| PM2.5 | 3.6µg/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 |
|---|---|---|---|---|
| Monday, May 20 | Good 34 AQI US |  | 60.8° 42.8° |  11.2 mp/h |
| Tuesday, May 21 | Good 39 AQI US | | 69.8° 37.4° | 8.9 mp/h |
| Wednesday, May 22 | Good 34 AQI US | | 75.2° 42.8° | 22.4 mp/h |
| Today | Good 20 AQI US | | 75.2° 42.8° | 22.4 mp/h |
| Friday, May 24 | Good 18 AQI US |  | 68° 39.2° | 8.9 mp/h |
| Saturday, May 25 | Good 41 AQI US | | 73.4° 50° | 31.3 mp/h |
| Sunday, May 26 | Good 17 AQI US | | 68° 46.4° | 20.1 mp/h |
| Monday, May 27 | Good 7 AQI US | | 73.4° 44.6° | 11.2 mp/h |
| Tuesday, May 28 | Good 28 AQI US | 70% | 75.2° 50° | 6.7 mp/h |
| Wednesday, May 29 | Moderate 74 AQI US  | 50% | 75.2° 50° | 11.2 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
32Contributors
Government Contributor
- Russ Stewart
1 station
- kleinp
1 station
2 Individual Contributors
- 29 Anonymous contributors
29 stations
29 Anonymous Contributors
Data validated and calibrated by IQAirWhere is the cleanest air quality in Boulder?
- Gillaspie Dr 5
- Redwood & Riverside 12
- Kalmia Avenue 13
- Rural North Boulder 13
- Hawthorn Avenue 15
- Keewayden 15
- North Boulder 15
- Shining Mountain Waldorf School 16
- University Hill 16
- Grape Avenue 17
- Concord Ave 18
- Frontage Road 19
- Table Mesa Court 19
- Winds II, Valmont & 29th 19
- Chautauqua Heights, Cascade Avenue 20
- Kincross Way 20
- Miami Way 20
- South 42nd Street 20
- Aztec Central 21
- Dartmouth Avenue 21
- Stony Hill Road 21
- Walker Ranch, Pine Needle Notch 21
- Boulder Station 22
- Bean Mountain Lane 23
- 10th Street 24
- Boulder Reservoir 24
- Flagstaff Road 24
- 700 Walnut Street 25
- Grove Street 25
- Thunderhead Drive 25
- Boulder - CU - 2102 Athens St. 27
- Hawk Lane 28
- Norlin Library 28
AQI US, Metric