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
11 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 | Clear sky |
| Temperature | 60.8°F |
| Humidity | 62% |
| Wind | 8.1 mp/h |
| Pressure | 30 Hg |
live aqi city ranking
Real-time USA city ranking
| # | city | US AQI |
|---|---|---|
| 1 |  Savage, Minnesota | 180 |
| 2 | Apple Valley, Minnesota | 178 |
| 3 | Blaine, Minnesota | 176 |
| 4 | Minneapolis, Minnesota | 171 |
| 5 | Rochester, Minnesota | 170 |
| 6 | Edina, Minnesota | 169 |
| 7 | Emmetsburg, Iowa | 167 |
| 8 | Saint Paul, Minnesota | 166 |
| 9 | Detroit Lakes, Minnesota | 153 |
| 10 | Hot Springs, South Dakota | 150 |
(local time)
SEE WORLD AQI RANKING
3D animated air pollution map
US AQI
49*
live AQI index
Good
Overview
What is the current air quality in Williamstown?
| Air pollution level | Air quality index | Main pollutant |
|---|---|---|
| Good | 49* US AQI | PM2.5 |
| Pollutants | Concentration | |
|---|---|---|
| PM2.5 | 8.9*µg/m³ | |
!
PM2.5
x1.8
PM2.5 concentration in Williamstown is currently 1.8 times the WHO annual air quality guideline value
Health Recommendations
What is the current air quality in Williamstown?
 | Enjoy outdoor activities |
 | Open your windows to bring clean, fresh air indoors GET A MONITOR |
Forecast
Williamstown air quality index (AQI) forecast
| Day | Pollution level | Weather | Temperature | Wind |
|---|---|---|---|---|
| Today | Good 49 AQI US |  | 78.8° 46.4° |  6.7 mp/h |
| Tuesday, May 14 | Moderate 52 AQI US  |  100% | 73.4° 55.4° | 6.7 mp/h |
| Wednesday, May 15 | Moderate 56 AQI US | 100% | 64.4° 59° | 2.2 mp/h |
| Thursday, May 16 | Moderate 59 AQI US | 40% | 71.6° 55.4° | 2.2 mp/h |
| Friday, May 17 | Moderate 59 AQI US | 100% | 77° 57.2° | 6.7 mp/h |
| Saturday, May 18 | Moderate 70 AQI US | 100% | 66.2° 62.6° | 4.5 mp/h |
| Sunday, May 19 | Moderate 80 AQI US | 40% | 75.2° 60.8° | 6.7 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