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
135 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 | Moderate | |
 | Tree pollen | Low | |
 | Grass pollen | Moderate | |
 | Weed pollen | None |
Source: tomorrow.io
Weather
What is the current weather in Princeton?
| Weather | Clear sky |
| Temperature | 82.4°F |
| Humidity | 41% |
| Wind | 11.5 mp/h |
| Pressure | 29.8 Hg |
live aqi city ranking
Real-time USA city ranking
| # | city | US AQI |
|---|---|---|
| 1 |  Sunriver, Oregon | 228 |
| 2 | Three Rivers, Oregon | 168 |
| 3 | Emmetsburg, Iowa | 101 |
| 4 | Carter Lake, Iowa | 99 |
| 5 | Omaha, Nebraska | 99 |
| 6 | Michigan City, Indiana | 93 |
| 7 | Oklahoma City, Oklahoma | 91 |
| 8 | Burns Harbor, Indiana | 90 |
| 9 | Tulsa, Oklahoma | 88 |
| 10 | Wichita, Kansas | 87 |
(local time)
SEE WORLD AQI RANKING
3D animated air pollution map
US AQI
59*
live AQI index
Moderate
Overview
What is the current air quality in Princeton?
| Air pollution level | Air quality index | Main pollutant |
|---|---|---|
| Moderate | 59* US AQI | PM2.5 |
| Pollutants | Concentration | |
|---|---|---|
| PM2.5 | 13.2*µg/m³ | |
!
PM2.5
x2.6
PM2.5 concentration in Princeton is currently 2.6 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 59 AQI US | | 82.4° 59° |  13.4 mp/h |
| Wednesday, May 15 | Moderate 59 AQI US |  | 82.4° 60.8° | 13.4 mp/h |
| Thursday, May 16 | Moderate 65 AQI US |  100% | 78.8° 64.4° | 15.7 mp/h |
| Friday, May 17 | Moderate 70 AQI US | 100% | 82.4° 66.2° | 13.4 mp/h |
| Saturday, May 18 | Moderate 65 AQI US | 50% | 89.6° 68° | 8.9 mp/h |
| Sunday, May 19 | Moderate 62 AQI US | | 89.6° 69.8° | 11.2 mp/h |
| Monday, May 20 | Moderate 61 AQI US | | 86° 71.6° | 17.9 mp/h |
| Tuesday, May 21 | Moderate 61 AQI US | 90% | 93.2° 69.8° | 22.4 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 Princeton?
No locations are available.
AQI US, Metric