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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
16 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 | Broken clouds |
| Temperature | 41°F |
| Humidity | 90% |
| Wind | 8.1 mp/h |
| Pressure | 29.9 Hg |
live aqi city ranking
Real-time USA city ranking
| # | city | US AQI |
|---|---|---|
| 1 | Arroyo Grande, California | 137 |
| 2 | Nipomo, California | 99 |
| 3 | San Antonio, Texas | 78 |
| 4 | Boerne, Texas | 74 |
| 5 | Georgetown, Texas | 72 |
| 6 | Oklahoma City, Oklahoma | 72 |
| 7 | Leander, Texas | 70 |
| 8 | Round Rock, Texas | 70 |
| 9 | Austin, Texas | 69 |
| 10 | New Braunfels, Texas | 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 | Rabbit Mountain Equestrian Center | 16 |
| 2 | Rozena Drive | 16 |
| 3 | Snead Court | 9 |
| 4 | Willis Heights | 9 |
| 5 | South Bross Street | 6 |
| 6 | Eagle Court | 5 |
| 7 | Mallard Place | 5 |
| 8 | The Shores | 5 |
| 9 | Ute Creek Drive | 5 |
| 10 | Bluebird Avenue | 4 |
(local time)
SEE WORLD AQI RANKING
US AQI
5
live AQI index
Good
Overview
What is the current air quality in Longmont?
| Air pollution level | Air quality index | Main pollutant |
|---|---|---|
| Good | 5 US AQI | PM2.5 |
| Pollutants | Concentration | |
|---|---|---|
| PM2.5 | 1.2µg/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, Apr 25 | Good 13 AQI US |  | 64.4° 46.4° |  15.7 mp/h |
| Friday, Apr 26 | Good 7 AQI US | | 44.6° 39.2° | 8.9 mp/h |
| Today | Good 5 AQI US | |||
| Friday, Apr 26 | Good 6 AQI US | 100% | 44.6° 39.2° | 8.9 mp/h |
| Today | Good 5 AQI US |  90% | 59° 37.4° | 4.5 mp/h |
| Sunday, Apr 28 | Good 13 AQI US | | 66.2° 41° | 11.2 mp/h |
| Monday, Apr 29 | Good 11 AQI US |  | 71.6° 46.4° | 11.2 mp/h |
| Tuesday, Apr 30 | Good 8 AQI US | 100% | 64.4° 46.4° | 17.9 mp/h |
| Wednesday, May 1 | Good 7 AQI US | 100% | 53.6° 41° | 20.1 mp/h |
| Thursday, May 2 | Good 5 AQI US | | 66.2° 33.8° | 4.5 mp/h |
| Friday, May 3 | Good 13 AQI US | 30% | 66.2° 41° | 8.9 mp/h |
Interested in hourly forecast? Get the app
News
The latest air quality news and resources.
Longmont air quality data attribution
16Contributors
- 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?
AQI US, Metric