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 Merrimack
Air quality index (AQI) and PM2.5 air pollution in Merrimack
226 people follow this city
Merrimack Air Quality Map
Real-time Merrimack air pollution map
AIR QUALITY DATA SOURCE
* AQI modeled using satellite data Learn more
Pollen
What is the pollen count in Merrimack today?
 | Index | Very high | |
 | Tree pollen | Very high | |
 | Grass pollen | Low | |
 | Weed pollen | None |
Source: tomorrow.io
Weather
What is the current weather in Merrimack?
| Weather | Clear sky |
| Temperature | 53.6°F |
| Humidity | 76% |
| Wind | 3.4 mp/h |
| Pressure | 30.1 Hg |
live aqi city ranking
Real-time USA city ranking
| # | city | US AQI |
|---|---|---|
| 1 |  Claremont, California | 83 |
| 2 | Redlands, California | 81 |
| 3 | Glendora, California | 80 |
| 4 | San Fernando, California | 79 |
| 5 | Glendale, California | 78 |
| 6 | Pasadena, California | 78 |
| 7 | San Bernardino, California | 78 |
| 8 | Coachella, California | 77 |
| 9 | North Hollywood, California | 77 |
| 10 | Alhambra, California | 75 |
(local time)
SEE WORLD AQI RANKING
3D animated air pollution map
US AQI
20*
live AQI index
Good
Overview
What is the current air quality in Merrimack?
| Air pollution level | Air quality index | Main pollutant |
|---|---|---|
| Good | 20* US AQI | PM2.5 |
| Pollutants | Concentration | |
|---|---|---|
| PM2.5 | 3.6*µg/m³ | |
✓
PM2.5 concentration in Merrimack air currently meets the WHO annual air quality guideline value
Health Recommendations
What is the current air quality in Merrimack?
 | Enjoy outdoor activities |
 | Open your windows to bring clean, fresh air indoors GET A MONITOR |
Forecast
Merrimack air quality index (AQI) forecast
| Day | Pollution level | Weather | Temperature | Wind |
|---|---|---|---|---|
| Today | Good 20 AQI US | | 78.8° 50° |  6.7 mp/h |
| Sunday, Jun 2 | Good 38 AQI US |  | 82.4° 48.2° | 6.7 mp/h |
| Monday, Jun 3 | Moderate 55 AQI US  | | 71.6° 53.6° | 8.9 mp/h |
| Tuesday, Jun 4 | Moderate 53 AQI US |  | 69.8° 50° | 6.7 mp/h |
| Wednesday, Jun 5 | Good 40 AQI US | | 75.2° 46.4° | 6.7 mp/h |
| Thursday, Jun 6 | Good 37 AQI US | | 77° 48.2° | 11.2 mp/h |
| Friday, Jun 7 | Good 20 AQI US |  100% | 66.2° 59° | 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 Merrimack?
No locations are available.
AQI US, Metric