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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 | Very high | |
 | Tree pollen | Very high | |
 | Grass pollen | Low | |
 | Weed pollen | None |
Source: tomorrow.io
Weather
What is the current weather in Herndon?
| Weather | Clear sky |
| Temperature | 55.4°F |
| Humidity | 86% |
| Wind | 0 mp/h |
| Pressure | 29.9 Hg |
live aqi city ranking
Real-time USA city ranking
| # | city | US AQI |
|---|---|---|
| 1 |  Mecca, California | 86 |
| 2 | Casa Grande, Arizona | 81 |
| 3 | Palm Desert, California | 79 |
| 4 | Fort Myers, Florida | 71 |
| 5 | North Hollywood, California | 71 |
| 6 | Hollywood, California | 66 |
| 7 | Pahrump, Nevada | 66 |
| 8 | Glendale, California | 65 |
| 9 | San Fernando, California | 65 |
| 10 | Pasadena, California | 64 |
(local time)
SEE WORLD AQI RANKING
3D animated air pollution map
US AQI
56*
live AQI index
Moderate
Overview
What is the current air quality in Herndon?
| Air pollution level | Air quality index | Main pollutant |
|---|---|---|
| Moderate | 56* US AQI | PM2.5 |
| Pollutants | Concentration | |
|---|---|---|
| PM2.5 | 12.1*µg/m³ | |
!
PM2.5
x2.4
PM2.5 concentration in Herndon is currently 2.4 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 56 AQI US |  100% | 73.4° 55.4° |  8.9 mp/h |
| Thursday, May 30 | Moderate 55 AQI US | 30% | 69.8° 53.6° | 8.9 mp/h |
| Friday, May 31 | Good 28 AQI US  |  | 69.8° 46.4° | 8.9 mp/h |
| Saturday, Jun 1 | Good 41 AQI US |  | 73.4° 50° | 4.5 mp/h |
| Sunday, Jun 2 | Moderate 69 AQI US | 80% | 66.2° 53.6° | 4.5 mp/h |
| Monday, Jun 3 | Moderate 64 AQI US | 100% | 68° 60.8° | 2.2 mp/h |
| Tuesday, Jun 4 | Moderate 73 AQI US | 60% | 75.2° 62.6° | 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