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Air quality in Herndon
Air quality index (AQI) and PM2.5 air pollution in Herndon
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Herndon Air Quality Map
Real-time Herndon air pollution map
AIR QUALITY DATA SOURCE
* AQI modeled using satellite data Learn more
Pollen
What is the pollen count in Herndon today?
 | Index | High | |
 | Tree pollen | High | |
 | Grass pollen | Low | |
 | Weed pollen | None |
Source: tomorrow.io
Weather
What is the current weather in Herndon?
| Weather | Broken clouds |
| Temperature | 75.2°F |
| Humidity | 59% |
| Wind | 16.1 mp/h |
| Pressure | 29.7 Hg |
live aqi city ranking
Real-time USA city ranking
| # | city | US AQI |
|---|---|---|
| 1 |  Maricopa, Arizona | 99 |
| 2 | Corpus Christi, Texas | 97 |
| 3 | Mecca, California | 97 |
| 4 | New Braunfels, Texas | 89 |
| 5 | Boerne, Texas | 86 |
| 6 | San Antonio, Texas | 86 |
| 7 | Austin, Texas | 77 |
| 8 | Casa Grande, Arizona | 77 |
| 9 | Shreveport, Louisiana | 73 |
| 10 | Banning, California | 67 |
(local time)
SEE WORLD AQI RANKING
3D animated air pollution map
US AQI
55*
live AQI index
Moderate
Overview
What is the current air quality in Herndon?
| Air pollution level | Air quality index | Main pollutant |
|---|---|---|
| Moderate | 55* US AQI | PM2.5 |
| Pollutants | Concentration | |
|---|---|---|
| PM2.5 | 11.2*µg/m³ | |
!
PM2.5
x2.2
PM2.5 concentration in Herndon is currently 2.2 times the WHO annual air quality guideline value
Health Recommendations
What is the current air quality in Herndon?
 | Sensitive groups should reduce outdoor exercise |
 | Close your windows to avoid dirty outdoor air GET A MONITOR |
 | Sensitive groups should wear a mask outdoors GET A MASK |
 | Sensitive groups should run an air purifier GET AN AIR PURIFIER |
Forecast
Herndon air quality index (AQI) forecast
| Day | Pollution level | Weather | Temperature | Wind |
|---|---|---|---|---|
| Today | Moderate 55 AQI US | | 75.2° 53.6° |  8.9 mp/h |
| Friday, May 17 | Moderate 58 AQI US |  80% | 75.2° 53.6° | 6.7 mp/h |
| Saturday, May 18 | Moderate 59 AQI US | 100% | 59° 57.2° | 6.7 mp/h |
| Sunday, May 19 | Good 49 AQI US  | 50% | 64.4° 53.6° | 4.5 mp/h |
| Monday, May 20 | Good 49 AQI US | | 68° 48.2° | 8.9 mp/h |
| Tuesday, May 21 | Good 48 AQI US |  | 73.4° 48.2° | 6.7 mp/h |
| Wednesday, May 22 | Good 31 AQI US | 100% | 77° 50° | 6.7 mp/h |
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News
The latest air quality news and resources.
How to best protect from air pollution?
Where is the cleanest air quality in Herndon?
No locations are available.
AQI US, Metric