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Air quality in Johnston
Air quality index (AQI) and PM2.5 air pollution in Johnston
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Johnston Air Quality Map
Real-time Johnston air pollution map
AIR QUALITY DATA SOURCE
* AQI modeled using satellite data Learn more
Pollen
What is the pollen count in Johnston today?
 | Index | Low | |
 | Tree pollen | Low | |
 | Grass pollen | Low | |
 | Weed pollen | None |
Source: tomorrow.io
Weather
What is the current weather in Johnston?
| Weather | Broken clouds |
| Temperature | 59°F |
| Humidity | 95% |
| Wind | 4.6 mp/h |
| Pressure | 30.1 Hg |
live aqi city ranking
Real-time USA city ranking
| # | city | US AQI |
|---|---|---|
| 1 | Boerne, Texas | 80 |
| 2 | San Antonio, Texas | 75 |
| 3 | Braddock, Pennsylvania | 62 |
| 4 | Fort Worth, Texas | 59 |
| 5 | Charleston, West Virginia | 58 |
| 6 | Urbana, Illinois | 58 |
| 7 | Casa Grande, Arizona | 57 |
| 8 | Champaign, Illinois | 57 |
| 9 | Corpus Christi, Texas | 56 |
| 10 | Marietta, Ohio | 56 |
(local time)
SEE WORLD AQI RANKING
3D animated air pollution map
US AQI
26*
live AQI index
Good
Overview
What is the current air quality in Johnston?
| Air pollution level | Air quality index | Main pollutant |
|---|---|---|
| Good | 26* US AQI | PM2.5 |
| Pollutants | Concentration | |
|---|---|---|
| PM2.5 | 6.3*µg/m³ | |
!
PM2.5
x1.3
PM2.5 concentration in Johnston is currently 1.3 times the WHO annual air quality guideline value
Health Recommendations
What is the current air quality in Johnston?
 | Enjoy outdoor activities |
 | Open your windows to bring clean, fresh air indoors GET A MONITOR |
Forecast
Johnston air quality index (AQI) forecast
| Day | Pollution level | Weather | Temperature | Wind |
|---|---|---|---|---|
| Today | Good 26 AQI US |  100% | 64.4° 55.4° |  17.9 mp/h |
| Monday, Apr 29 | Good 21 AQI US | | 55.4° 46.4° | 17.9 mp/h |
| Tuesday, Apr 30 | Good 12 AQI US | 100% | 75.2° 44.6° | 17.9 mp/h |
| Wednesday, May 1 | Good 24 AQI US | 100% | 68° 51.8° | 17.9 mp/h |
| Thursday, May 2 | Moderate 62 AQI US  | 100% | 69.8° 59° | 15.7 mp/h |
| Friday, May 3 | Good 41 AQI US | 100% | 53.6° 42.8° | 17.9 mp/h |
| Saturday, May 4 | Good 15 AQI US | 90% | 59° 39.2° | 13.4 mp/h |
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News
The latest air quality news and resources.
Where is the cleanest air quality in Johnston?
No locations are available.
AQI US, Metric