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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 | Low | |
 | Tree pollen | Low | |
 | Grass pollen | Low | |
 | Weed pollen | None |
Source: tomorrow.io
Weather
What is the current weather in Longmont?
| Weather | Clear sky |
| Temperature | 60.8°F |
| Humidity | 61% |
| Wind | 6.9 mp/h |
| Pressure | 29.8 Hg |
live aqi city ranking
Real-time USA city ranking
| # | city | US AQI |
|---|---|---|
| 1 |  Mecca, California | 90 |
| 2 | Palm Desert, California | 86 |
| 3 | Campo, California | 85 |
| 4 | Pahrump, Nevada | 71 |
| 5 | Corpus Christi, Texas | 69 |
| 6 | Georgetown, Texas | 69 |
| 7 | Claremont, California | 68 |
| 8 | Rancho Cucamonga, California | 68 |
| 9 | Round Rock, Texas | 66 |
| 10 | Cary, Illinois | 64 |
(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 | Snead Court | 27 |
| 2 | Longmont Station | 26 |
| 3 | Ute Creek Drive | 25 |
| 4 | Caleta Trail | 23 |
| 5 | South Bross Street | 23 |
| 6 | Willis Heights | 23 |
| 7 | Hallett Peak | 22 |
| 8 | Mallard Place | 22 |
| 9 | Clover Basin Consulting | 21 |
| 10 | Bluebird Avenue | 20 |
(local time)
SEE WORLD AQI RANKING
US AQI
21
live AQI index
Good
Overview
What is the current air quality in Longmont?
| Air pollution level | Air quality index | Main pollutant |
|---|---|---|
| Good | 21 US AQI | PM2.5 |
| Pollutants | Concentration | |
|---|---|---|
| PM2.5 | 3.8µg/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 |
|---|---|---|---|---|
| Thursday, May 30 | Good 22 AQI US |  | 69.8° 46.4° |  8.9 mp/h |
| Friday, May 31 | Good 31 AQI US |  | 80.6° 51.8° | 11.2 mp/h |
| Saturday, Jun 1 | Good 25 AQI US |  | 86° 53.6° | 20.1 mp/h |
| Today | Good 21 AQI US | | 86° 53.6° | 20.1 mp/h |
| Monday, Jun 3 | Moderate 56 AQI US  | 30% | 86° 53.6° | 20.1 mp/h |
| Tuesday, Jun 4 | Good 20 AQI US |  | 82.4° 59° | 15.7 mp/h |
| Wednesday, Jun 5 | Good 14 AQI US | | 91.4° 57.2° | 15.7 mp/h |
| Thursday, Jun 6 | Good 20 AQI US | 30% | 86° 53.6° | 8.9 mp/h |
| Friday, Jun 7 | Good 20 AQI US | 100% | 84.2° 57.2° | 8.9 mp/h |
| Saturday, Jun 8 | Good 20 AQI US | 100% | 77° 59° | 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?
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 11
- Eagle Court 12
- Hawthorne Place 16
- Rozena Drive 16
- Summerlin Lane 16
- Preston Drive 17
- Bluebird Avenue 20
- The Shores 20
- Clover Basin Consulting 21
- Hallett Peak 22
- Mallard Place 22
- Caleta Trail 23
- South Bross Street 23
- Willis Heights 23
- Ute Creek Drive 25
- Longmont Station 26
- Snead Court 27
AQI US, Metric