1. North America
  2. United States
  3. Missouri
  4. St. Louis

St. Louis

Missouri, United States

2026-05-25 12:00
AQI (US)
Moderate
Pollutants|Pollens
PM10
μg/m³
90
PM2.5
μg/m³
16.2
NO2
μg/m³
35.3
O3
μg/m³
21.4
CO
μg/m³
562.5
SO2
μg/m³
0.3
Weather
  • ℃
  • ℉
19℃
81%
0 kph
1 of 11
Historical Data
  • Hourly
  • Daily
  • AQI (US)
  • Pollen
  • PM10
  • PM2.5
  • NO2
  • O3
  • CO
  • SO2
Places included
BLAIR STREET
AQI 100
BROADWAY (South)
AQI 62
Branch Street
AQI 25
Forest Park
AQI 61
Data Sources
http://www.airnow.gov/

Get the App

Scan QR Code
Air Matters
Realtime broadcasting air quality information on your phone for more than 180 countries.

iPhone, iPad

Android

Cities Nearby

St. Louis
AQI 68
Sauget
AQI 51
East Saint Louis
AQI 51
Brooklyn
AQI 25
Venice
AQI 25
Cahokia
AQI 51
Alorton
AQI 51
Fairmont City
AQI 51
Washington Park
AQI 51
Granite City
AQI 50
Hillsdale
AQI 100