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 contributor(s)
Station(s) operated by
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Become a contributorWeather
What is the current weather in Waltham?
| Weather | Clear sky |
| Temperature | 50°F |
| Humidity | 38% |
| Wind | 11.5 mp/h |
| Pressure | 29.8 Hg |
live aqi city ranking
Real-time USA city ranking
| # | city | US AQI |
|---|---|---|
| 1 | Riverview, Florida | 139 |
| 2 | Lillington, North Carolina | 126 |
| 3 | Midland, North Carolina | 109 |
| 4 | Albemarle, North Carolina | 102 |
| 5 | Renville, Minnesota | 97 |
| 6 | Los Ranchos de Albuquerque, New Mexico | 96 |
| 7 | Elwood, Illinois | 88 |
| 8 | Carrboro, North Carolina | 85 |
| 9 | Depoe Bay, Oregon | 85 |
| 10 | Willowbrook, Illinois | 84 |
(local time)
SEE WORLD AQI RANKING
3D animated air pollution map
US AQI
21*
live AQI index
Good
Overview
What is the current air quality in Waltham?
| Air pollution level | Air quality index | Main pollutant |
|---|---|---|
| Good | 21* US AQI | PM2.5 |
| Pollutants | Concentration | |
|---|---|---|
| PM2.5 | 5.1*µg/m³ | |
✓
PM2.5 concentration in Waltham air currently meets the WHO annual air quality guideline value
Health Recommendations
How to protect from air pollution in Waltham?
 | Open your windows to bring clean, fresh air indoors GET A MONITOR |
 | Enjoy outdoor activities |
Forecast
Waltham air quality index (AQI) forecast
| Day | Pollution level | Weather | Temperature | Wind |
|---|---|---|---|---|
| Thursday, Mar 23 | Good 21 US AQI |  | 50°35.6° |  11.2 mp/h |
| Today | Good 21 US AQI |  100% | 39.2°33.8° | 11.2 mp/h |
| Saturday, Mar 25 | Good 21 US AQI |  100% | 50°37.4° | 15.7 mp/h |
| Sunday, Mar 26 | Good 17 US AQI | | 51.8°32° | 8.9 mp/h |
| Monday, Mar 27 | Good 20 US AQI | 100% | 39.2°37.4° | 6.7 mp/h |
| Tuesday, Mar 28 | Good 11 US AQI | | 46.4°32° | 13.4 mp/h |
| Wednesday, Mar 29 | Good 20 US AQI | 100% | 42.8°32° | 11.2 mp/h |
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Historical
Historic air quality graph for Waltham
How to best protect from air pollution?
Where is the cleanest air quality in Waltham?
