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Air quality in Boulder
Air quality index (AQI) and PM2.5 air pollution in Boulder
102.7K people follow this city
Boulder Air Quality Map
Real-time Boulder air pollution map
AIR QUALITY DATA CONTRIBUTORS
30 Contributors
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Pollen
What is the pollen count in Boulder today?
 | Index | Low | |
 | Tree pollen | Low | |
 | Grass pollen | Low | |
 | Weed pollen | None |
Source: tomorrow.io
Weather
What is the current weather in Boulder?
| Weather | Clear sky |
| Temperature | 80.6°F |
| Humidity | 23% |
| Wind | 10.4 mp/h |
| Pressure | 29.9 Hg |
live aqi city ranking
Real-time USA city ranking
| # | city | US AQI |
|---|---|---|
| 1 |  Mecca, California | 89 |
| 2 | San Bernardino, California | 87 |
| 3 | Redlands, California | 81 |
| 4 | Yucaipa, California | 81 |
| 5 | Pasadena, Texas | 80 |
| 6 | Baytown, Texas | 79 |
| 7 | Pahrump, Nevada | 79 |
| 8 | Fontana, California | 78 |
| 9 | Boerne, Texas | 77 |
| 10 | Rancho Cucamonga, California | 77 |
(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 | Boulder Reservoir | 41 |
| 2 | Aztec Central | 35 |
| 3 | Hawk Lane | 35 |
| 4 | South 42nd Street | 34 |
| 5 | 10th Street | 33 |
| 6 | 700 Walnut Street | 33 |
| 7 | Boulder - CU - 2102 Athens St. | 33 |
| 8 | Grove Street | 33 |
| 9 | Miami Way | 33 |
| 10 | Stony Hill Road | 33 |
(local time)
SEE WORLD AQI RANKING
US AQI
31
live AQI index
Good
Overview
What is the current air quality in Boulder?
| Air pollution level | Air quality index | Main pollutant |
|---|---|---|
| Good | 31 US AQI | PM2.5 |
| Pollutants | Concentration | |
|---|---|---|
| PM2.5 | 5.6µg/m³ | |
!
PM2.5
x1.1
PM2.5 concentration in Boulder is currently 1.1 times 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 |
|---|---|---|---|---|
| Wednesday, May 29 | Good 37 AQI US |  | 75.2° 51.8° |  17.9 mp/h |
| Thursday, May 30 | Good 34 AQI US | | 68° 46.4° | 11.2 mp/h |
| Friday, May 31 | Good 34 AQI US | | 80.6° 51.8° | 11.2 mp/h |
| Today | Good 31 AQI US | 40% | 80.6° 51.8° | 11.2 mp/h |
| Sunday, Jun 2 | Good 31 AQI US |  | 84.2° 53.6° | 20.1 mp/h |
| Monday, Jun 3 | Moderate 58 AQI US  | | 84.2° 57.2° | 15.7 mp/h |
| Tuesday, Jun 4 | Good 22 AQI US | | 77° 57.2° | 22.4 mp/h |
| Wednesday, Jun 5 | Good 19 AQI US | | 89.6° 55.4° | 17.9 mp/h |
| Thursday, Jun 6 | Good 21 AQI US | | 86° 53.6° | 8.9 mp/h |
| Friday, Jun 7 | Good 43 AQI US | 80% | 86° 62.6° | 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
30Contributors
Government Contributor
- Russ Stewart
1 station
- kleinp
1 station
2 Individual Contributors
- 27 Anonymous contributors
27 stations
27 Anonymous Contributors
Data validated and calibrated by IQAirWhere is the cleanest air quality in Boulder?
- Gillaspie Dr 5
- Keewayden 21
- Redwood & Riverside 22
- North Boulder 23
- Rural North Boulder 24
- Frontage Road 26
- Kalmia Avenue 26
- Shining Mountain Waldorf School 26
- Boulder Station 27
- Concord Ave 28
- University Hill 28
- Thunderhead Drive 29
- Hawthorn Avenue 30
- Kincross Way 30
- Bean Mountain Lane 31
- Dartmouth Avenue 31
- Norlin Library 31
- Walker Ranch, Pine Needle Notch 31
- Chautauqua Heights, Cascade Avenue 32
- Grape Avenue 32
- Winds II, Valmont & 29th 32
- 10th Street 33
- 700 Walnut Street 33
- Boulder - CU - 2102 Athens St. 33
- Grove Street 33
- Miami Way 33
- Stony Hill Road 33
- South 42nd Street 34
- Aztec Central 35
- Hawk Lane 35
- Boulder Reservoir 41
AQI US, Metric