Get a monitor and contributor to air quality data in your city.
Air Quality 
Air Monitors
Air Purifiers
For Business
News
Support
Air quality in Decorah
Air quality index (AQI) and PM2.5 air pollution in Decorah
151 people follow this city
Decorah Air Quality Map
Real-time Decorah air pollution map
AIR QUALITY DATA CONTRIBUTORS
Anonymous contributor
See all
Pollen
What is the pollen count in Decorah today?
 | Index | Low | |
 | Tree pollen | Low | |
 | Grass pollen | Low | |
 | Weed pollen | None |
Weather
What is the current weather in Decorah?
| Weather | Rain |
| Temperature | 44.6°F |
| Humidity | 87% |
| Wind | 4.6 mp/h |
| Pressure | 30 Hg |
live aqi city ranking
Real-time USA city ranking
| # | city | US AQI |
|---|---|---|
| 1 | Visalia, California | 100 |
| 2 | Porterville, California | 93 |
| 3 | Three Rivers, California | 75 |
| 4 | Corpus Christi, Texas | 73 |
| 5 | Bakersfield, California | 72 |
| 6 | Palm Desert, California | 72 |
| 7 | Wichita, Kansas | 69 |
| 8 | Charlottesville, Virginia | 67 |
| 9 | The Woodlands, Texas | 65 |
| 10 | Mechanicsville, Maryland | 64 |
(local time)
SEE WORLD AQI RANKING
3D animated air pollution map
live Decorah aqi ranking
Real-time Decorah air quality ranking
| # | station | US AQI |
|---|---|---|
| 1 | Luther College (Valders) | 35 |
| 2 | 5th Avenue | 28 |
| 3 | Jefferson Street | 24 |
(local time)
SEE WORLD AQI RANKING
US AQI
28
live AQI index
Good
Overview
What is the current air quality in Decorah?
| Air pollution level | Air quality index | Main pollutant |
|---|---|---|
| Good | 28 US AQI | PM2.5 |
| Pollutants | Concentration | |
|---|---|---|
| PM2.5 | 6.8µg/m³ | |
!
PM2.5
x1.4
PM2.5 concentration in Decorah is currently 1.4 times the WHO annual air quality guideline value
Health Recommendations
What is the current air quality in Decorah?
 | Enjoy outdoor activities |
 | Open your windows to bring clean, fresh air indoors GET A MONITOR |
Forecast
Decorah air quality index (AQI) forecast
| Day | Pollution level | Weather | Temperature | Wind |
|---|---|---|---|---|
| Monday, Apr 15 | Good 27 AQI US |  | 62.6° 50° |  26.8 mp/h |
| Tuesday, Apr 16 | Good 10 AQI US | | 57.2° 42.8° | 20.1 mp/h |
| Wednesday, Apr 17 | Good 19 AQI US | | 51.8° 39.2° | 11.2 mp/h |
| Today | Good 28 AQI US | 100% | 51.8° 39.2° | 11.2 mp/h |
| Friday, Apr 19 | Good 5 AQI US |  | 48.2° 33.8° | 22.4 mp/h |
| Saturday, Apr 20 | Good 4 AQI US | | 44.6° 32° | 15.7 mp/h |
| Sunday, Apr 21 | Good 5 AQI US |  | 53.6° 32° | 11.2 mp/h |
| Monday, Apr 22 | Good 6 AQI US | 90% | 59° 37.4° | 11.2 mp/h |
| Tuesday, Apr 23 | Good 7 AQI US | 100% | 46.4° 37.4° | 11.2 mp/h |
| Wednesday, Apr 24 | Good 8 AQI US | | 53.6° 32° | 6.7 mp/h |
Interested in hourly forecast? Get the app
News
The latest air quality news and resources.
Decorah air quality data attribution
3Contributors
- 3 Anonymous contributors
3 stations
3 Anonymous Contributors
1 Data source
Data validated and calibrated by IQAirWhere is the cleanest air quality in Decorah?
AQI US, Metric