Air Quality in DeKalb, United States
Cloudy
17.0°C · 89.9% humidity
17.0°
Feels 17.0°
39
Good
Air quality is satisfactory. Enjoy outdoor activities.
Calibrated model
Nearby Monitoring Stations
DeKalb's air quality — share it
AQI Forecast
25
1am
25
25
39
4am
35
32
30
7am
31
30
29
10am
28
28
26
1pm
25
25
25
4pm
25
25
25
7pm
24
25
25
10pm
25
25
Air Quality Index Trend
42h · 3 stnDeKalb's air quality is primarily affected by vehicle emissions and industrial activity. Seasonal wildfire smoke and weather patterns can cause periodic air quality deterioration.
89.9%
Humidity
30.8 km/h
Wind SSW
1011.8 hPa
Pressure
0.7
UV Low
GoodModerateUSGUnhealthyVery UnhealthyHazardous
Which pollutant is driving the AQI?
PM2.5▲
9.38 µg/m³
PM10
13.7 µg/m³
050100150200300500
What is the weather forecast for DeKalb?
Temperature & Precipitation
PM2.5 Trend
42h · 3 stationsPM2.59.38 µg/m³
✓ WHO
Good
PM1013.7 µg/m³
Good
UV INDEX0.7
Low
What is the 7-day forecast for DeKalb?
05-30
23.3° 11.0°
0.81 mm
05-31
29.2° 13.5°
0.25 mm
06-01
29.5° 14.7°
0.38 mm
06-02
21.7° 14.1°
8.87 mm
06-03
29.3° 21.4°
06-04
24.3° 12.6°
06-05
23.8° 11.1°
0.25 mm
Both models agree
Avg diff: 6.0°C
What cities are near DeKalb?
Get AQI alerts for DeKalb
Notify me when air quality reaches:
Free · No account · Unsubscribe any time
Data sources: AQI from ground-level monitoring stations via AQICN. Weather forecast from ECMWF (IFS & CAMS models). AQI calculated using US EPA standard. Updated 2026-05-30T09:12 UTC.