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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 | Very high | |
 | Tree pollen | Very high | |
 | Grass pollen | Very high | |
 | Weed pollen | None |
Weather
What is the current weather in Johnston?
| Weather | Clear sky |
| Temperature | 78.8°F |
| Humidity | 53% |
| Wind | 4.1 mp/h |
| Pressure | 30.1 Hg |
live aqi city ranking
Real-time USA city ranking
| # | city | US AQI |
|---|---|---|
| 1 | Deschutes River Woods, Oregon | 96 |
| 2 | Casa Grande, Arizona | 93 |
| 3 | Catonsville, Maryland | 92 |
| 4 | Downey, California | 91 |
| 5 | San Gabriel, California | 89 |
| 6 | Monterey Park, California | 83 |
| 7 | Compton, California | 82 |
| 8 | Visalia, California | 81 |
| 9 | Alhambra, California | 78 |
| 10 | Elizabethtown, Pennsylvania | 78 |
(local time)
SEE WORLD AQI RANKING
3D animated air pollution map
US AQI
41*
live AQI index
Good
Overview
What is the current air quality in Johnston?
| Air pollution level | Air quality index | Main pollutant |
|---|---|---|
| Good | 41* US AQI | PM2.5 |
| Pollutants | Concentration | |
|---|---|---|
| PM2.5 | 10*µg/m³ | |
!
PM2.5
x2
PM2.5 concentration in Johnston is currently 2 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 41 AQI US | | 86° 60.8° |  6.7 mp/h |
| Friday, Apr 19 | Moderate 51 AQI US  |  40% | 84.2° 62.6° | 8.9 mp/h |
| Saturday, Apr 20 | Moderate 56 AQI US | 30% | 80.6° 60.8° | 6.7 mp/h |
| Sunday, Apr 21 | Moderate 52 AQI US | 100% | 62.6° 48.2° | 11.2 mp/h |
| Monday, Apr 22 | Moderate 61 AQI US | 100% | 51.8° 44.6° | 8.9 mp/h |
| Tuesday, Apr 23 | Moderate 67 AQI US | | 68° 41° | 4.5 mp/h |
| Wednesday, Apr 24 | Moderate 75 AQI US | 40% | 77° 48.2° | 8.9 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