Air quality in Saint Louis

Air quality index (AQI) and PM2.5 air pollution in Saint Louis

Last update at (local time)

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Weather

What is the current weather in Saint Louis?

Weather icon
WeatherClear sky
Temperature73.4°F
Humidity38%
Wind3 mp/h
Pressure29.9 Hg

live aqi city ranking

Real-time USA city ranking

#cityUS AQI
1 York, Pennsylvania

365

2 Gordonville, Pennsylvania

324

3 Lebanon, Pennsylvania

319

4 Harrisburg, Pennsylvania

296

5 Hidden Valley, Arizona

296

6 Woodbury, New Jersey

295

7 Hebron, Pennsylvania

281

8 Camp Hill, Pennsylvania

280

9 Landover, Maryland

274

10 Purcellville, Virginia

263

(local time)

SEE WORLD AQI RANKING

live Saint Louis aqi ranking

Real-time Saint Louis air quality ranking

#stationUS AQI
1 Buchanan Street

87

2 BLAIR STREET

84

3 Branch Street

83

4 Forest Park

64

5 Ladue

57

6 BROADWAY (South)

55

(local time)

SEE WORLD AQI RANKING

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US AQI

87

live AQI index
Moderate

Human face indicating AQI level

Overview

What is the current air quality in Saint Louis?

Air pollution levelAir quality indexMain pollutant
Moderate 87 US AQItrendPM2.5
PollutantsConcentration
PM2.5
29.2µg/m³trend
!

PM2.5

x5.8

PM2.5 concentration in Saint Louis is currently 5.8 times the WHO annual air quality guideline value

Health Recommendations

How to protect from air pollution in Saint Louis?

An IQAir mask icon Sensitive groups should wear a mask outdoors
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An IQAir purifier icon Sensitive groups should run an air purifier
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An open window icon Close your windows to avoid dirty outdoor air
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A man cycling icon Sensitive groups should reduce outdoor exercise

Forecast

Saint Louis air quality index (AQI) forecast

DayPollution levelWeatherTemperatureWind
Sunday, Jun 4

Moderate 69 US AQI

Human face indicating AQI level
Weather icon84.2°60.8°
Wind rotating 59 degree

8.9 mp/h

Monday, Jun 5

Moderate 73 US AQI

Human face indicating AQI level
Weather icon87.8°60.8°
Wind rotating 181 degree

6.7 mp/h

Tuesday, Jun 6

Moderate 85 US AQI

Human face indicating AQI level
Weather icon80.6°64.4°
Wind rotating 358 degree

11.2 mp/h

Wednesday, Jun 7

Moderate 72 US AQI

Human face indicating AQI level
Weather icon78.8°55.4°
Wind rotating 36 degree

8.9 mp/h

Today

Moderate 87 US AQI

Human face indicating AQI level
Weather icon78.8°55.4°
Wind rotating 153 degree

4.5 mp/h

Friday, Jun 9

Moderate 63 US AQI

Human face indicating AQI level
Weather icon60%84.2°57.2°
Wind rotating 145 degree

13.4 mp/h

Saturday, Jun 10

Moderate 54 US AQI

Human face indicating AQI level
Weather icon100%84.2°60.8°
Wind rotating 328 degree

13.4 mp/h

Sunday, Jun 11

Good 31 US AQI

Human face indicating AQI level
Weather icon77°57.2°
Wind rotating 329 degree

11.2 mp/h

Monday, Jun 12

Good 25 US AQI

Human face indicating AQI level
Weather icon60%84.2°59°
Wind rotating 224 degree

6.7 mp/h

Tuesday, Jun 13

Good 32 US AQI

Human face indicating AQI level
Weather icon60%80.6°64.4°
Wind rotating 202 degree

6.7 mp/h

Interested in hourly forecast? Get the app

Historical

Historic air quality graph for Saint Louis

How to best protect from air pollution?

Reduce your air pollution exposure in Saint Louis

Saint Louis air quality data attribution

3Contributors

2 Data sources

Data validated and calibrated by IQAirData validated and calibrated by IQAir

Where is the cleanest air quality in Saint Louis?

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