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Air quality in Port Jefferson
Air quality index (AQI) and PM2.5 air pollution in Port Jefferson
98 people follow this city
Port Jefferson Air Quality Map
Real-time Port Jefferson air pollution map
AIR QUALITY DATA SOURCE
* AQI modeled using satellite data Learn more
Pollen
What is the pollen count in Port Jefferson today?
 | Index | Moderate | |
 | Tree pollen | Moderate | |
 | Grass pollen | None | |
 | Weed pollen | None |
Source: tomorrow.io
Weather
What is the current weather in Port Jefferson?
| Weather | Clear sky |
| Temperature | 51.8°F |
| Humidity | 92% |
| Wind | 14 mp/h |
| Pressure | 30 Hg |
live aqi city ranking
Real-time USA city ranking
| # | city | US AQI |
|---|---|---|
| 1 |  Palm Desert, California | 96 |
| 2 | Canton, Ohio | 93 |
| 3 | Maricopa, Arizona | 88 |
| 4 | Mecca, California | 81 |
| 5 | Pahrump, Nevada | 79 |
| 6 | Casa Grande, Arizona | 71 |
| 7 | Thermal, California | 71 |
| 8 | San Antonio, Texas | 69 |
| 9 | Elizabethtown, Pennsylvania | 67 |
| 10 | New Braunfels, Texas | 65 |
(local time)
SEE WORLD AQI RANKING
3D animated air pollution map
US AQI
14*
live AQI index
Good
Overview
What is the current air quality in Port Jefferson?
| Air pollution level | Air quality index | Main pollutant |
|---|---|---|
| Good | 14* US AQI | PM2.5 |
| Pollutants | Concentration | |
|---|---|---|
| PM2.5 | 2.5*µg/m³ | |
✓
PM2.5 concentration in Port Jefferson air currently meets the WHO annual air quality guideline value
Health Recommendations
What is the current air quality in Port Jefferson?
 | Enjoy outdoor activities |
 | Open your windows to bring clean, fresh air indoors GET A MONITOR |
Forecast
Port Jefferson air quality index (AQI) forecast
| Day | Pollution level | Weather | Temperature | Wind |
|---|---|---|---|---|
| Today | Good 14 AQI US |  | 62.6° 51.8° |  8.9 mp/h |
| Tuesday, May 21 | Good 31 AQI US |  | 68° 53.6° | 13.4 mp/h |
| Wednesday, May 22 | Good 29 AQI US |  80% | 71.6° 59° | 15.7 mp/h |
| Thursday, May 23 | Good 35 AQI US | 100% | 68° 59° | 11.2 mp/h |
| Friday, May 24 | Good 48 AQI US |  | 69.8° 59° | 11.2 mp/h |
| Saturday, May 25 | Good 22 AQI US | | 60.8° 53.6° | 8.9 mp/h |
| Sunday, May 26 | Good 31 AQI US | 100% | 59° 51.8° | 15.7 mp/h |
Interested in hourly forecast? Get the app
News
The latest air quality news and resources.
How to best protect from air pollution?
Where is the cleanest air quality in Port Jefferson?
No locations are available.
AQI US, Metric