Air Quality in Affton, United States
Windy
18.9°C · 46.8% humidity
18.9°
Feels 18.9°
25
Good
Air quality is satisfactory. Enjoy outdoor activities.
Model forecast
Nearby Monitoring Stations
AQI Forecast
37
6pm
37
37
37
9pm
50
50
50
12am
50
75
75
3am
75
75
50
6am
50
50
37
9am
37
37
50
12pm
25
25
25
3pm
25
25
46.8%
Humidity
75.9 km/h
Wind S
1018.9 hPa
Pressure
0.7
UV Low
GoodModerateUSGUnhealthyVery UnhealthyHazardous
What is the weather forecast for Affton?
Temperature & Precipitation
PM2.55.9 µg/m³
✓ WHO
Good
PM1013.7 µg/m³
Good
UV INDEX0.7
Low
What is the 7-day forecast for Affton?
04-09
20.7° 9.9°
04-10
22.5° 12.4°
04-11
20.6° 14.3°
20.63 mm
04-12
25.6° 16.9°
0.62 mm
04-13
28.6° 19.2°
0.31 mm
04-14
25.8° 21.0°
0.62 mm
04-15
17.4° 9.0°
4.5 mm
Both models agree
Avg diff: 4.6°C
Where are air quality stations near Affton?
29
Ladue, Missouri, USA
44
Arnold West, Missouri, USA
45
East St. Louis, Illinois, USA
97
Branch Street, Missouri, USA
What cities are near Affton?
Data sources: Weather forecast from ECMWF (IFS & CAMS models). AQI calculated using US EPA standard. Updated 2026-04-09T21:22 UTC.