Air Quality in Decatur, United States
Drizzle
27.2°C · 79.8% humidity
27.2°
Feels 32.7°
45
Good
Air quality is satisfactory. Enjoy outdoor activities.
Model forecast
Nearby Monitoring Stations
Decatur's air quality — share it
AQI Forecast
34
8pm
34
34
45
11pm
42
40
38
2am
37
36
35
5am
35
35
28
8am
27
27
34
11am
34
34
34
2pm
34
34
34
5pm
34
34
Air Quality Index Trend
39h · 3 stnDecatur's air quality is primarily affected by vehicle emissions and industrial activity. Seasonal wildfire smoke and weather patterns can cause periodic air quality deterioration.
79.8%
Humidity
39.1 km/h
Wind ENE
1013.0 hPa
Pressure
4.4
UV Moderate
GoodModerateUSGUnhealthyVery UnhealthyHazardous
Which pollutant is driving the AQI?
PM2.5▲
10.85 µg/m³
PM10
20.55 µg/m³
050100150200300500
What is the weather forecast for Decatur?
Temperature & Precipitation
PM2.5 Trend
39h · 3 stationsPM2.510.85 µg/m³
✓ WHO
Good
PM1020.55 µg/m³
Good
UV INDEX4.4
Moderate
What is the 7-day forecast for Decatur?
08-03
28.5° 20.8°
0.44 mm
08-04
33.0° 21.2°
0.56 mm
08-05
31.8° 14.9°
0.94 mm
08-06
35.7° 20.8°
2.81 mm
08-07
31.8° 21.2°
4.38 mm
08-08
31.8° 22.1°
3.94 mm
08-09
32.5° 25.0°
0.06 mm
Both models agree
Avg diff: 2.2°C
Where are air quality stations near Decatur?
What cities are near Decatur?
Get AQI alerts for Decatur
Notify me when air quality reaches:
Free · No account · Unsubscribe any time
Data sources: Weather forecast from ECMWF (IFS & CAMS models). AQI calculated using US EPA standard. Updated 2026-08-08T04:48 UTC.