Air Quality in Ballwin, United States

Windy
29.1°C · 52.6% humidity
29.1°
Feels 32.1°
45
Good
Air quality is satisfactory. Enjoy outdoor activities.
Model forecast

Nearby Monitoring Stations

AQI Forecast
54 8am
54
54
45 11am
48
49
51 2pm
32
32
53 5pm
53
53
34 8pm
34
34
34 11pm
34
27
25 2am
25
25
25 5am
25
25
AD 728×90

Air Quality Index Trend

36h · 1 stn

Ballwin's air quality is primarily affected by vehicle emissions and industrial activity. Seasonal wildfire smoke and weather patterns can cause periodic air quality deterioration.

52.6%
Humidity
52.2 km/h
Wind NE
1012.7 hPa
Pressure
19.9
UV Extreme
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲
45
10.85 µg/m³
PM10
25
27.4 µg/m³
050100150200300500

What is the weather forecast for Ballwin?

Temperature & Precipitation

PM2.5 Trend

36h · 1 station
PM2.510.85 µg/m³ ✓ WHO
Good
PM1027.4 µg/m³
Good
UV INDEX19.9
Extreme
AD 300×250

What is the 7-day forecast for Ballwin?

07-21
30.3° 23.3°
07-22
27.5° 20.7°
07-23
20.2° 19.2°
0.88 mm
07-24
28.9° 17.7°
0.75 mm
07-25
27.0° 19.6°
3.88 mm
07-26
32.6° 24.0°
1.06 mm
07-27
28.3° 21.5°
Both models agree Avg diff: 3.4°C

Where are air quality stations near Ballwin?

89
Arnold West, Missouri, USA
20.7 km PM2.5: 30.2 µg/m³
56
Arnold West, Missouri, USA
20.7 km PM2.5: 14.5 µg/m³
30
Forest Park, Missouri, USA
23.4 km PM2.5: 7.2 µg/m³

What cities are near Ballwin?

45 Manchester 48 Chesterfield 47 Wildwood 35 Kirkwood 35 Creve Coeur 35 Webster Groves 45 Maryland Heights 35 Concord 35 Affton 35 Overland
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Data sources: Weather forecast from ECMWF (IFS & CAMS models). AQI calculated using US EPA standard. Updated 2026-07-21T16:49 UTC.