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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
28 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 | 64.4°F |
| Humidity | 60% |
| Wind | 5.7 mp/h |
| Pressure | 30 Hg |
live aqi city ranking
Real-time USA city ranking
| # | city | US AQI |
|---|---|---|
| 1 |  Banning, California | 72 |
| 2 | San Bernardino, California | 69 |
| 3 | Three Rivers, California | 69 |
| 4 | Hollywood, California | 68 |
| 5 | Yucaipa, California | 67 |
| 6 | Glendora, California | 66 |
| 7 | San Fernando, California | 66 |
| 8 | La Crescenta-Montrose, California | 65 |
| 9 | Palm Springs, California | 65 |
| 10 | Carlsbad, New Mexico | 64 |
(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 - CU - 2102 Athens St. | 49 |
| 2 | Canyon Pointe Park | 42 |
| 3 | Kincross Way | 41 |
| 4 | 700 Walnut Street | 39 |
| 5 | Boulder Reservoir | 39 |
| 6 | Aztec Central | 38 |
| 7 | Grove Street | 38 |
| 8 | South 42nd Street | 35 |
| 9 | 10th Street | 34 |
| 10 | Norlin Library | 34 |
(local time)
SEE WORLD AQI RANKING
US AQI
40
live AQI index
Good
Overview
What is the current air quality in Boulder?
| Air pollution level | Air quality index | Main pollutant |
|---|---|---|
| Good | 40 US AQI | O3 |
| Pollutants | Concentration | |
|---|---|---|
| PM2.5 | 5.9µg/m³ | |
| PM10 | 23µg/m³ | |
| O3 | 98µg/m³ | |
!
PM2.5
x1.2
PM2.5 concentration in Boulder is currently 1.2 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 |
|---|---|---|---|---|
| Tuesday, May 28 | Good 38 AQI US |  | 78.8° 51.8° |  13.4 mp/h |
| 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 |
| Today | Good 40 AQI US |  | 80.6° 51.8° | 11.2 mp/h |
| Saturday, Jun 1 | Good 31 AQI US | | 82.4° 53.6° | 24.6 mp/h |
| Sunday, Jun 2 | Moderate 58 AQI US  | | 86° 57.2° | 11.2 mp/h |
| Monday, Jun 3 | Good 21 AQI US | | 78.8° 62.6° | 20.1 mp/h |
| Tuesday, Jun 4 | Good 19 AQI US | | 87.8° 53.6° | 6.7 mp/h |
| Wednesday, Jun 5 | Good 21 AQI US | | 86° 55.4° | 11.2 mp/h |
| Thursday, Jun 6 | Good 43 AQI US | 30% | 91.4° 62.6° | 17.9 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
28Contributors
Government Contributor
- Russ Stewart
1 station
- kleinp
1 station
2 Individual Contributors
- 25 Anonymous contributors
25 stations
25 Anonymous Contributors
Data validated and calibrated by IQAirWhere is the cleanest air quality in Boulder?
- Gillaspie Dr 5
- Redwood & Riverside 19
- North Boulder 20
- University Hill 21
- 47th Street 22
- Rural North Boulder 22
- Walker Ranch, Pine Needle Notch 22
- Hawk Lane 24
- Shining Mountain Waldorf School 24
- Grape Avenue 27
- Keewayden 27
- Boulder Station 29
- Stony Hill Road 29
- Thunderhead Drive 29
- Chautauqua Heights, Cascade Avenue 31
- Hawthorn Avenue 31
- Dartmouth Avenue 32
- Miami Way 32
- 10th Street 34
- Norlin Library 34
- Winds II, Valmont & 29th 34
- South 42nd Street 35
- Aztec Central 38
- Grove Street 38
- 700 Walnut Street 39
- Boulder Reservoir 39
- Kincross Way 41
- Canyon Pointe Park 42
- Boulder - CU - 2102 Athens St. 49
AQI US, Metric