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Air quality in Longmont
Air quality index (AQI) and PM2.5 air pollution in Longmont
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Longmont Air Quality Map
Real-time Longmont air pollution map
AIR QUALITY DATA CONTRIBUTORS
17 Contributors
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Pollen
What is the pollen count in Longmont today?
 | Index | Very high | |
 | Tree pollen | Low | |
 | Grass pollen | Very high | |
 | Weed pollen | None |
Source: tomorrow.io
Weather
What is the current weather in Longmont?
| Weather | Clear sky |
| Temperature | 62.6°F |
| Humidity | 56% |
| Wind | 4.6 mp/h |
| Pressure | 29.9 Hg |
live aqi city ranking
Real-time USA city ranking
| # | city | US AQI |
|---|---|---|
| 1 |  Pahrump, Nevada | 77 |
| 2 | Michigan City, Indiana | 71 |
| 3 | Muskegon, Michigan | 70 |
| 4 | Bakersfield, California | 68 |
| 5 | Taos, New Mexico | 67 |
| 6 | Maryville, Tennessee | 65 |
| 7 | Palm Desert, California | 65 |
| 8 | Mecca, California | 64 |
| 9 | Coachella, California | 63 |
| 10 | Columbus, Ohio | 63 |
(local time)
SEE WORLD AQI RANKING
3D animated air pollution map
live Longmont aqi ranking
Real-time Longmont air quality ranking
| # | station | US AQI |
|---|---|---|
| 1 | Ute Creek Drive | 52 |
| 2 | Willis Heights | 52 |
| 3 | Longmont Station | 44 |
| 4 | Preston Drive | 38 |
| 5 | The Shores | 34 |
| 6 | South Bross Street | 31 |
| 7 | Caleta Trail | 29 |
| 8 | Mallard Place | 27 |
| 9 | Snead Court | 27 |
| 10 | Clover Basin Consulting | 25 |
(local time)
SEE WORLD AQI RANKING
US AQI
27
live AQI index
Good
Overview
What is the current air quality in Longmont?
| Air pollution level | Air quality index | Main pollutant |
|---|---|---|
| Good | 27 US AQI | PM2.5 |
| Pollutants | Concentration | |
|---|---|---|
| PM2.5 | 4.8µg/m³ | |
✓
PM2.5 concentration in Longmont air currently meets the WHO annual air quality guideline value
Health Recommendations
What is the current air quality in Longmont?
 | Enjoy outdoor activities |
 | Open your windows to bring clean, fresh air indoors GET A MONITOR |
Forecast
Longmont air quality index (AQI) forecast
| Day | Pollution level | Weather | Temperature | Wind |
|---|---|---|---|---|
| Tuesday, May 28 | Good 26 AQI US |  | 80.6° 48.2° |  13.4 mp/h |
| Wednesday, May 29 | Good 23 AQI US |  | 77° 51.8° | 22.4 mp/h |
| Thursday, May 30 | Good 22 AQI US | | 69.8° 46.4° | 8.9 mp/h |
| Today | Good 27 AQI US |  | 82.4° 50° | 11.2 mp/h |
| Saturday, Jun 1 | Good 33 AQI US | | 86° 51.8° | 29.1 mp/h |
| Sunday, Jun 2 | Moderate 57 AQI US  | | 89.6° 55.4° | 8.9 mp/h |
| Monday, Jun 3 | Good 20 AQI US | | 82.4° 60.8° | 15.7 mp/h |
| Tuesday, Jun 4 | Good 19 AQI US | | 87.8° 53.6° | 8.9 mp/h |
| Wednesday, Jun 5 | Good 21 AQI US | | 87.8° 53.6° | 11.2 mp/h |
| Thursday, Jun 6 | Good 43 AQI US | 40% | 95° 60.8° | 6.7 mp/h |
Interested in hourly forecast? Get the app
News
The latest air quality news and resources.
How to best protect from air pollution?
Longmont air quality data attribution
17Contributors
Government Contributor
- Anonymous
1 station
Educational Contributor
- John Baum
1 station
Individual Contributor
- 14 Anonymous contributors
14 stations
14 Anonymous Contributors
Data validated and calibrated by IQAirWhere is the cleanest air quality in Longmont?
- Rabbit Mountain Equestrian Center 16
- Hawthorne Place 17
- Summerlin Lane 18
- Eagle Court 21
- Rozena Drive 22
- Bluebird Avenue 23
- Hallett Peak 23
- Clover Basin Consulting 25
- Mallard Place 27
- Snead Court 27
- Caleta Trail 29
- South Bross Street 31
- The Shores 34
- Preston Drive 38
- Longmont Station 44
- Ute Creek Drive 52
- Willis Heights 52
AQI US, Metric