Air Quality in Decatur, United States

Clear
30.2°C · 44.5% humidity
30.2°
Feels 32.5°
42
Good
Air quality is satisfactory. Enjoy outdoor activities.
Model forecast

Nearby Monitoring Stations

AQI Forecast
27 2pm
27
27
42 5pm
38
35
33 8pm
29
28
27 11pm
26
26
26 2am
26
25
25 5am
25
25
25 8am
25
25
25 11am
25
25
AD 728×90

Air Quality Index Trend

48h · 1 stn

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

44.5%
Humidity
30.4 km/h
Wind ESE
1010.0 hPa
Pressure
9.4
UV Very High
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲
42
10.0 µg/m³
PM10
13
13.7 µg/m³
050100150200300500

What is the weather forecast for Decatur?

Temperature & Precipitation

PM2.5 Trend

48h · 1 station
PM2.510.0 µg/m³ ✓ WHO
Good
PM1013.7 µg/m³
Good
UV INDEX9.4
Very High
AD 300×250

What is the 7-day forecast for Decatur?

07-21
32.8° 24.7°
0.38 mm
07-22
34.3° 21.3°
2.19 mm
07-23
36.6° 22.4°
5.38 mm
07-24
30.0° 20.7°
3.38 mm
07-25
29.2° 20.2°
3.44 mm
07-26
38.2° 21.9°
7.37 mm
07-27
31.1° 19.9°
4.31 mm
Both models agree Avg diff: 3.8°C

Where are air quality stations near Decatur?

4
united-states-of-america-atlanta-park-drive-ne
6.3 km PM2.5: 1.0 µg/m³
48
United Ave., Georgia, USA
8.3 km PM2.5: 11.5 µg/m³
76
Gwinnett Tech, Georgia, USA
29.5 km PM2.5: 24.0 µg/m³
43
Gwinnett Tech, Georgia, USA
29.5 km PM2.5: 10.3 µg/m³

What cities are near Decatur?

27 North Decatur 42 Belvedere Park 8 North Druid Hills 42 Candler-McAfee 27 Atlanta 8 Brookhaven 8 Tucker 8 Chamblee 41 Redan 41 Stonecrest
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Data sources: Weather forecast from ECMWF (IFS & CAMS models). AQI calculated using US EPA standard. Updated 2026-07-21T21:28 UTC.