Be the first to measure and contribute air quality data to your community
Air Quality 
Air Purifiers
For Business
News
Support
Air quality in Princeton
Air quality index (AQI) and PM2.5 air pollution in Princeton
19 people follow this city
Princeton Air Quality Map
Real-time Princeton air pollution map
AIR QUALITY DATA SOURCE
* AQI modeled using satellite data Learn more
Pollen
What is the pollen count in Princeton today?
 | Index | Very high | |
 | Tree pollen | Very high | |
 | Grass pollen | Very high | |
 | Weed pollen | None |
Source: tomorrow.io
Weather
What is the current weather in Princeton?
| Weather | Scattered clouds |
| Temperature | 73.4°F |
| Humidity | 62% |
| Wind | 8.1 mp/h |
| Pressure | 30.3 Hg |
live aqi city ranking
Real-time USA city ranking
| # | city | US AQI |
|---|---|---|
| 1 | Corpus Christi, Texas | 63 |
| 2 | Marana, Arizona | 61 |
| 3 | Detroit, Michigan | 59 |
| 4 | Kalamazoo, Michigan | 58 |
| 5 | Hammond, Indiana | 57 |
| 6 | The Woodlands, Texas | 55 |
| 7 | Burns Harbor, Indiana | 54 |
| 8 | Dundalk, Maryland | 54 |
| 9 | Harrisburg, Pennsylvania | 54 |
| 10 | Washington, D.C., District of Columbia | 54 |
(local time)
SEE WORLD AQI RANKING
3D animated air pollution map
US AQI
34*
live AQI index
Good
Overview
What is the current air quality in Princeton?
| Air pollution level | Air quality index | Main pollutant |
|---|---|---|
| Good | 34* US AQI | PM2.5 |
| Pollutants | Concentration | |
|---|---|---|
| PM2.5 | 8.1*µg/m³ | |
!
PM2.5
x1.6
PM2.5 concentration in Princeton is currently 1.6 times the WHO annual air quality guideline value
Forecast
Princeton air quality index (AQI) forecast
| Day | Pollution level | Weather | Temperature | Wind |
|---|---|---|---|---|
| Today | Good 34 AQI US | | 75.2° 57.2° |  11.2 mp/h |
| Monday, Apr 29 | Good 43 AQI US |  | 80.6° 57.2° | 11.2 mp/h |
| Tuesday, Apr 30 | Good 24 AQI US |  60% | 80.6° 59° | 11.2 mp/h |
| Wednesday, May 1 | Good 50 AQI US | 90% | 78.8° 60.8° | 8.9 mp/h |
| Thursday, May 2 | Moderate 52 AQI US  | 40% | 73.4° 59° | 11.2 mp/h |
| Friday, May 3 | Moderate 70 AQI US | | 78.8° 55.4° | 6.7 mp/h |
| Saturday, May 4 | Moderate 78 AQI US | | 82.4° 62.6° | 13.4 mp/h |
Interested in hourly forecast? Get the app
Where is the cleanest air quality in Princeton?
No locations are available.
Connect With IQAir
Sign up for our newsletter
AQI US, Metric