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 Williamstown
Air quality index (AQI) and PM2.5 air pollution in Williamstown
5 people follow this city
Williamstown Air Quality Map
Real-time Williamstown air pollution map
AIR QUALITY DATA SOURCE
* AQI modeled using satellite data Learn more
Pollen
What is the pollen count in Williamstown 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 Williamstown?
| Weather | Broken clouds |
| Temperature | 68°F |
| Humidity | 88% |
| Wind | 6.3 mp/h |
| Pressure | 29.9 Hg |
live aqi city ranking
Real-time USA city ranking
| # | city | US AQI |
|---|---|---|
| 1 |  Thibodaux, Louisiana | 107 |
| 2 | Baton Rouge, Louisiana | 94 |
| 3 | San Bernardino, California | 89 |
| 4 | Indio, California | 85 |
| 5 | Yucaipa, California | 84 |
| 6 | Chicago, Illinois | 81 |
| 7 | Michigan City, Indiana | 79 |
| 8 | Fontana, California | 77 |
| 9 | Burns Harbor, Indiana | 76 |
| 10 | Claremont, California | 76 |
(local time)
SEE WORLD AQI RANKING
3D animated air pollution map
US AQI
62*
live AQI index
Moderate
Overview
What is the current air quality in Williamstown?
| Air pollution level | Air quality index | Main pollutant |
|---|---|---|
| Moderate | 62* US AQI | PM2.5 |
| Pollutants | Concentration | |
|---|---|---|
| PM2.5 | 14.8*µg/m³ | |
!
PM2.5
x3
PM2.5 concentration in Williamstown is currently 3 times the WHO annual air quality guideline value
Health Recommendations
What is the current air quality in Williamstown?
 | 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
Williamstown air quality index (AQI) forecast
| Day | Pollution level | Weather | Temperature | Wind |
|---|---|---|---|---|
| Today | Moderate 62 AQI US |  100% | 68° 59° |  6.7 mp/h |
| Saturday, May 18 | Moderate 63 AQI US | 30% | 77° 55.4° | 4.5 mp/h |
| Sunday, May 19 | Moderate 70 AQI US |  | 80.6° 57.2° | 4.5 mp/h |
| Monday, May 20 | Moderate 67 AQI US | | 80.6° 57.2° | 4.5 mp/h |
| Tuesday, May 21 | Moderate 63 AQI US | 30% | 80.6° 60.8° | 8.9 mp/h |
| Wednesday, May 22 | Moderate 72 AQI US | 100% | 78.8° 64.4° | 15.7 mp/h |
| Thursday, May 23 | Moderate 63 AQI US | 100% | 68° 50° | 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 Williamstown?
No locations are available.
AQI US, Metric