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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 | Low | |
 | Weed pollen | None |
Source: tomorrow.io
Weather
What is the current weather in Johnston?
| Weather | Clear sky |
| Temperature | 48.2°F |
| Humidity | 50% |
| Wind | 10.4 mp/h |
| Pressure | 30.5 Hg |
live aqi city ranking
Real-time USA city ranking
| # | city | US AQI |
|---|---|---|
| 1 | San Antonio, Texas | 81 |
| 2 | Boerne, Texas | 78 |
| 3 | Georgetown, Texas | 77 |
| 4 | Leander, Texas | 73 |
| 5 | Round Rock, Texas | 73 |
| 6 | Austin, Texas | 72 |
| 7 | New Braunfels, Texas | 72 |
| 8 | Corpus Christi, Texas | 71 |
| 9 | Fort Worth, Texas | 70 |
| 10 | Lewisville, Texas | 63 |
(local time)
SEE WORLD AQI RANKING
3D animated air pollution map
US AQI
13*
live AQI index
Good
Overview
What is the current air quality in Johnston?
| Air pollution level | Air quality index | Main pollutant |
|---|---|---|
| Good | 13* US AQI | PM2.5 |
| Pollutants | Concentration | |
|---|---|---|
| PM2.5 | 3.1*µg/m³ | |
✓
PM2.5 concentration in Johnston air currently meets the WHO annual air quality guideline value
Forecast
Johnston air quality index (AQI) forecast
| Day | Pollution level | Weather | Temperature | Wind |
|---|---|---|---|---|
| Today | Good 13 AQI US |  100% | 66.2° 42.8° |  8.9 mp/h |
| Sunday, Apr 28 | Good 37 AQI US |  | 71.6° 53.6° | 6.7 mp/h |
| Monday, Apr 29 | Good 23 AQI US | | 60.8° 48.2° | 6.7 mp/h |
| Tuesday, Apr 30 | Good 19 AQI US | 70% | 53.6° 44.6° | 4.5 mp/h |
| Wednesday, May 1 | Good 22 AQI US |  | 68° 48.2° | 4.5 mp/h |
| Thursday, May 2 | Good 11 AQI US | | 66.2° 46.4° | 11.2 mp/h |
| Friday, May 3 | Good 19 AQI US | 100% | 66.2° 50° | 8.9 mp/h |
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Where is the cleanest air quality in Johnston?
No locations are available.
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AQI US, Metric