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Air quality in Waltham
Air quality index (AQI) and PM2.5 air pollution in Waltham
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Waltham Air Quality Map
Real-time Waltham air pollution map
AIR QUALITY DATA CONTRIBUTORS
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Pollen
What is the pollen count in Waltham today?
 | Index | Very high | |
 | Tree pollen | Very high | |
 | Grass pollen | Low | |
 | Weed pollen | None |
Source: tomorrow.io
Weather
What is the current weather in Waltham?
| Weather | Clear sky |
| Temperature | 50°F |
| Humidity | 39% |
| Wind | 13.8 mp/h |
| Pressure | 30.1 Hg |
live aqi city ranking
Real-time USA city ranking
| # | city | US AQI |
|---|---|---|
| 1 | Palm Desert, California | 113 |
| 2 | Boerne, Texas | 93 |
| 3 | San Antonio, Texas | 88 |
| 4 | Leander, Texas | 86 |
| 5 | New Braunfels, Texas | 86 |
| 6 | Austin, Texas | 81 |
| 7 | Georgetown, Texas | 81 |
| 8 | Round Rock, Texas | 78 |
| 9 | Indio, California | 77 |
| 10 | El Paso, Texas | 64 |
(local time)
SEE WORLD AQI RANKING
3D animated air pollution map
live Waltham aqi ranking
Real-time Waltham air quality ranking
| # | station | US AQI |
|---|---|---|
| 1 | Brandeis University | 20 |
(local time)
SEE WORLD AQI RANKING
US AQI
20
live AQI index
Good
Overview
What is the current air quality in Waltham?
| Air pollution level | Air quality index | Main pollutant |
|---|---|---|
| Good | 20 US AQI | PM2.5 |
| Pollutants | Concentration | |
|---|---|---|
| PM2.5 | 4.7µg/m³ | |
✓
PM2.5 concentration in Waltham air currently meets the WHO annual air quality guideline value
Health Recommendations
What is the current air quality in Waltham?
 | Enjoy outdoor activities |
 | Open your windows to bring clean, fresh air indoors GET A MONITOR |
Forecast
Waltham air quality index (AQI) forecast
| Day | Pollution level | Weather | Temperature | Wind |
|---|---|---|---|---|
| Monday, Apr 22 | Good 20 AQI US | | 62.6° 37.4° |  11.2 mp/h |
| Tuesday, Apr 23 | Good 14 AQI US |  | 59° 41° | 11.2 mp/h |
| Wednesday, Apr 24 | Good 15 AQI US | | 55.4° 32° | 8.9 mp/h |
| Wednesday, Apr 24 | Good 4 AQI US | | 55.4° 32° | 8.9 mp/h |
| Today | Good 20 AQI US | | 57.2° 33.8° | 8.9 mp/h |
| Friday, Apr 26 | Good 18 AQI US |  | 64.4° 37.4° | 8.9 mp/h |
| Saturday, Apr 27 | Good 27 AQI US | | 60.8° 42.8° | 4.5 mp/h |
| Sunday, Apr 28 | Good 50 AQI US | 70% | 60.8° 51.8° | 6.7 mp/h |
| Monday, Apr 29 | Good 42 AQI US | 60% | 57.2° 48.2° | 6.7 mp/h |
| Tuesday, Apr 30 | Moderate 52 AQI US  | 50% | 66.2° 46.4° | 8.9 mp/h |
| Wednesday, May 1 | Moderate 58 AQI US | 100% | 68° 51.8° | 13.4 mp/h |
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News
The latest air quality news and resources.
Waltham air quality data attribution
1Contributor
- 1 Anonymous contributor
1 station
Anonymous Contributor
1 Data source
Data validated and calibrated by IQAirWhere is the cleanest air quality in Waltham?
AQI US, Metric