Be the first to measure and contribute air quality data to your community
Air Quality 
Air Monitors
Air Purifiers
For Business
News
Support
Air quality in Princeton
Air quality index (AQI) and PM2.5 air pollution in Princeton
5 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 | Moderate | |
 | Weed pollen | None |
Weather
What is the current weather in Princeton?
| Weather | Scattered clouds |
| Temperature | 66.2°F |
| Humidity | 90% |
| Wind | 7.4 mp/h |
| Pressure | 29.9 Hg |
live aqi city ranking
Real-time USA city ranking
| # | city | US AQI |
|---|---|---|
| 1 | Boerne, Texas | 74 |
| 2 | San Antonio, Texas | 71 |
| 3 | Springville, California | 71 |
| 4 | Sequoia National Park, California | 68 |
| 5 | Porterville, California | 67 |
| 6 | Georgetown, Texas | 66 |
| 7 | Three Rivers, California | 66 |
| 8 | Leander, Texas | 62 |
| 9 | Anchorage, Alaska | 60 |
| 10 | Fairbanks, Alaska | 59 |
(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 Princeton?
| Air pollution level | Air quality index | Main pollutant |
|---|---|---|
| Moderate | 55* US AQI | PM2.5 |
| Pollutants | Concentration | |
|---|---|---|
| PM2.5 | 14.1*µg/m³ | |
!
PM2.5
x2.8
PM2.5 concentration in Princeton is currently 2.8 times the WHO annual air quality guideline value
Health Recommendations
What is the current air quality in Princeton?
 | 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
Princeton air quality index (AQI) forecast
| Day | Pollution level | Weather | Temperature | Wind |
|---|---|---|---|---|
| Today | Moderate 55 AQI US |  100% | 64.4° 48.2° |  11.2 mp/h |
| Friday, Apr 19 | Good 10 AQI US  | | 59° 41° | 11.2 mp/h |
| Saturday, Apr 20 | Good 6 AQI US | | 57.2° 41° | 6.7 mp/h |
| Sunday, Apr 21 | Good 12 AQI US |  | 62.6° 44.6° | 4.5 mp/h |
| Monday, Apr 22 | Good 12 AQI US | 100% | 60.8° 44.6° | 13.4 mp/h |
| Tuesday, Apr 23 | Good 31 AQI US | | 55.4° 41° | 11.2 mp/h |
| Wednesday, Apr 24 | Good 12 AQI US | | 57.2° 37.4° | 8.9 mp/h |
Interested in hourly forecast? Get the app
News
The latest air quality news and resources.
Where is the cleanest air quality in Princeton?
No locations are available.
AQI US, Metric